The Beastkin are greatly affected by the phases of the moon.
Especially at night, their physical abilities and senses fluctuate significantly, with a mental boost that can increase or decrease their capabilities nearly twofold.
Needless to say, they reach their peak during full moons and are most calm during new moons.

By the way, Orgs also react to the phases of the moon, though not as strongly as Beastkin do. This is a common trait among races adapted to darkness, such as Dwarves and Dark Elves; they're at their highest activity level during new moons.
The closer it gets to complete darkness, the stronger this effect becomes. Even those without night vision find themselves outmatched by these nocturnal creatures who surpass their usual abilities in darkness.
This is why nations like Celesta with its multiracial population or the Dwarf Kingdom of Gotha in the southern continent have long been feared for their nighttime raid tactics using dark-adapted soldiers. The surrounding countries typically reinforce their border defenses during new moons.

Now, these traits naturally affect reproductive capabilities as well.
When two races with opposite characteristics mate, they can run into some troublesome issues.

"Brother Kelly, are you done already?"

“Y-Yeah. And you guys should go easy on me, I’m not exactly young anymore.”

“You’re still in your twenties, so don’t make excuses about your age… did something happen to someone else?”

“No way! Orgasms just mess with my head on full moon nights!”

Lynne and Kate Mikagami licked their limp members while the wolf-humanoids sighed heavily, overwhelmed by their lust.

“Anyway, it’s not exactly a cultural norm to have sex every hour from morning till night…”

Pulling away from them reluctantly, I wiped myself off with a wet towel before putting on my underwear and pants. If left alone, they would continue licking until I was hard again.

“I wouldn’t mind if you kept me plugged in all day long… but…”

“You’re being unfair, big sister! That’s impossible for me!”

“True… and Kelly has her own life to consider.”

“Come on, you two should go out in clothes every once in a while…or at least stop waiting for my dick all day long,”

Lynne tugged the sheets and smiled bashfully. Kate wagged her tail happily as she grinned.

“Because I love Brother Kerry so much.”

“I-I’m still not used to it, you see, so if possible, could we have a bit more? My body craves it especially during full moon periods, so it’s probably best to get used to it now,”

I was happy, but also thought they were getting a little too carried away.

Since the night Lynne and Kerry had mated, she’d rushed back to Quillia to submit her transfer request. It would take an ordinary person over a month one way, but using the Great Desert Labyrinth to its fullest extent, it only took ten days round trip.

Even if they were taking shortcuts, their incredible mobility was still impressive for wolf-humanoids.

“I ran without stopping because I wanted to see Kerry so badly.”

“…So why did you drag three stone golems along with you?!”

It had been a long time since Kelly had faced so many stone golems at once, but she managed to fend them off successfully with Linné’s help. She realized that it was no wonder the Third Infantry Regiment in the West expected great things from her; Linné really was very strong.

Her main forte seemed to be using her powerful legs for close combat, yet she wasn’t clumsy with a sword either—she even managed to sever one of the stone golem’s arms with an ordinary longsword.

“…If you keep training like this, becoming a Master Knight isn’t out of reach.”

“But I’m your wife now, Kelly~”

Three days ago, in the corner of the labyrinth where five stone golems lay scattered, she had thrown herself at Kelly, ignoring both her fatigue and the afterglow from battle, demanding that they make love again.

“We’ll have to head back to Basson soon.”

“…That’s a shame.”

“You won’t be able to get any until we reach our destination…”

The wolf sisters listened intently.

The door flung open.

“Quit the army already.”

“Mom!”

Dorothy stuck out her thumb in a “thumbs up” sign.

“That’s not how it works! You can’t just quit whenever you feel like it, that’s not what being an army person is about!”

“If I run away now, they won’t even come looking for me, right? No one knows about our colony anyway.”

“Didn’t we have a captain and someone named Smithson over last week?”

“They’d understand, wouldn’t they?”

“What basis do you have for that!?”

Mom was fully focused on her grandchild. Kate and Linnie had been completely obsessed with making babies ever since they made their “promise” to marry Kelly.

"I wish I could work in the army for another three years or so..."

"Three more years in the military..."

"When I come back, our family will be fifteen people—counting my sister and me."

Wolf Beastmen usually give birth to twins.

"What should we do? Is there a childcare facility at Basson?"

"There isn't one..."

"Don’t worry. I’ll take care of them in town."

"Oh my. If you’re going to have them, send me a letter when it’s time—I’ll come and help out."

"Wait, both of you. No, Mom, calm down. Are you sure you want to keep having twins?"

Kate nodded cheerfully. Linne looked away bashfully.

「...Well, umm... I think you'll probably do it every year without even thinking about it... I mean, you won't be able to stop having sex with Kelly-san.」

「Really?♪」

「Yeah.」

「You’re more reliable than I thought.」

Even my mom nodded along.

「...Well, umm...」

Kelly felt a little left out.

While it was great for the harem to have sisters who were willing to make love with her, she couldn’t control them when they all ganged up on her.

I wonder if Smisson feels this way too, being left out while Selen and the Centurion like him so much, Kelly thought sympathetically.

In reality, it was just because Kelly wasn't strong enough to tell women off.

That said.

"First of all,"

"Yes?"

At dinner, her mother slams the table and Kelly jumps. Kate and Linne are wearing Dorothy's old shirt (it’s quite loose, but their own clothes got drenched in fluids during sex), looking at Dorothy with a puzzled expression.

"Don't you feel bad telling me that you're out of sperm just because it's full moon when girls are so eager?"

"Well, I mean... You know how it is."

"That's not the point. These fine daughters of yours are willing to stretch their vaginas and give birth to your child. Even at this age, a real man should be able to get an erection or two."

"Mom, we're eating dinner. Try not to use such crude language."

"S-t-o-p!"

Dorothy bangs the table.

"Even though it was expensive, I got a lot of Hellboar liver."

"...Ew."

"? Kelly-san?"

"I-I don't like offal much."

He’s the strongest man in the cow ogre colony and has many likes and dislikes.

"Noisy."

Dorothy didn’t listen to him. She plucked out some raw Hellboar liver, grabbed Kelly by his jaw, forced open his mouth, and shoved it inside.

"B-Buuhmooohh!?"

“Even an old man of seventy can get a boost from eating fresh ones raw, they say. Kelly, I’m going to feed this to the two of you… Ah! Don’t spit it out!”

“I-I don’t like them.”

Kelly’s eyes are tearing up.

But Kate takes in the liver that Kelly spat out.

Then she tries to make Kelly eat it by mouth-to-mouth.

“Hey, hey, Kate!? ”

Kelly’s eyes are even more watery. She could push Kate away if she wanted to, but then she’d be a total jerk.

“Mmm…”

“Guh…”

In the end, Kelly has no choice but to let Kate feed it to her.

And Kate pressed her face to Kelly's mouth, not letting her spit it out.

“...ghweh”

She swallowed it down.

“I, I can't believe this. This is so real.”

“Here’s the next one.”

“I don’t wanna anymore.”

But in front of her was Kate with another piece of liver stuffed into her mouth and Linnie trying to pick up a piece of liver like she had learned from Kate.

“Blech!!”

She cried as she ate everything.

“Ugh... I thought I was gonna die...”

Kerry, sobbing uncontrollably as she rinsed her mouth, looked like a virgin girl who had been violated. But even so, changes were occurring in Kerry’s body.
“Ugh… damn it.”
Her cock was getting bigger and bigger.
And along with that, her libido began to overwhelm her thoughts.
“No…”
Kerry shook her head.
She wanted to cum inside Kate and Linne. She wanted to fuck them however she pleased.
If this had been the Kerry from a few weeks ago, she might have been able to hold out. But now, Kerry knew what it was like to be inside a woman. She knew where her stamina could go.

Her heightened sexual desire could only be satisfied by that action now.

Even if her rationality was content, her instincts demanded more.

“Kuh... oh, ...ohhh.”

Slowly getting up, Kelly looked at Kate and Linne who were standing at her waist height.

Receiving their expectant gazes,

...clenching her teeth and exhaling hot breath from her nose,

“Y-yes... yes... let me do ittt!!”

The little bit of remaining rationality in her reached out to them with a voice even she was surprised by.

“Wauu♪”

“Auu... Ke, Kelly-saaaan♪”

With both hands, she grabs them and turns each of them upside down, revealing their bare butts. She forcefully shoves her own erect member into Linnie’s tiny crotch, which is held by her right hand.
“Haaaaa…♪”
Linnie sticks out her tongue in pleasure as Kelly forces her overly thick member inside her. Linnie herself had been slightly nibbling on her liver and was intensely aroused due to the effects of the full moon.
Kelly thrusts all the way into Linnie’s depths.
Still, only half of his long member fits inside.
With reason blown away, Kelly pulls out and slams Linnie down onto his member with great force.
It’s nothing but a masturbation movement using Linnie’s sex organ. It doesn’t care about her comfort at all; it’s pure pussy-fucking.
But that’s exactly how Linnie likes to be dominated.
“Haaaaa, agu, aaaah…♪ Kelly-san, Kelliiiii-san!! More, moreee…♪ Harder… aaaaah!!!”

I am completely under this strong, fierce man's control.
My current worth isn't that of a proud warrior or a righteous lycanthrope; I'm nothing but a woman, just a cunt, merely a hole for his cock to rub against.
Lynne felt overwhelming bliss being treated like this and used for breeding.
This kind of cruel sex was what made her feel satisfied on an instinctual level as a beast. It was the excitement that Kelly brought out in her.
"Ahh, ah, wauh, ahhh... K-Kelly-san, cock... I love your cock... I'll love it forever... I'll be nothing but your cock hole for life!!"
"Ughoooooo!!!"
Kelly wasn't listening. The "promise" wouldn't hold.
If Kelly had agreed here, she would have abandoned her position as a soldier and her role as his sister, becoming a sex slave beyond the title of wife. Lynne was that desperate to be with Kelly, to submit to his member, to feel love for him.
"Kelly... saaann!!"
And so, without regard for Lynne's feelings, Kelly ravaged her womb and filled her insides with cum.

“Ah... Agghh! Kuah... Auuuuh!!”
Lynne was driven to an orgasmic frenzy by the merciless ejaculation of semen that followed her intense, painful and pleasurable sex session. Even seeing Lynne in such a state, Kate’s eyes shone brightly.
By now, she had grown accustomed to Lynne’s sexual preferences, Kelly’s sheer size, and ferocity; nothing frightened her anymore. The longer Kate spent with Kelly, the more perverted she became than her sister.
“Hauuuuh!”
Kelly pulled his member out of Lynne and thrust it into Kate as if he were done.
Lynne was tossed onto the table. She opened her eyes slightly after a few seconds, feeling semen gushing from her crotch, and smiled faintly.
Meanwhile, Kate, like her sister, had become Kelly’s masturbation tool.
“Gahh, ahf, auuuh, kafuu... Keh-ri, onii-chan, so goooood...”
Rhythmically plundering her depths, Kelly made Kate wag her tail in delight.

It looked like rough, destructive sex. In fact, she had almost no rationality left and wasn’t considering Kate’s comfort at all.
But still, he was holding back enough not to hurt her. No matter how much he followed his instincts, Kelly’s kindness remained, wanting to be gentle with a weaker opponent.
That made it unbearably endearing, and even though she couldn’t move freely because of being held down, Kate tried desperately to wiggle her ass to help Kelly reach orgasm.
“Bghhhhhh…!!”
Kelly felt that and groaned lowly as if trying to endure the pleasure.
“I-it’s okay… Big Brother Kelly, you can cum… it’s okay♪”
“U-ughoohh…!!”
The small wolf-human wiggling her butt in a snake-like motion, urging the giant bull-ogre to ejaculate. Her expression and movements were filled with love more than lust.
In the end, Kelly’s animalistic nature succumbed to that.

“Bwahhhhhh!!”
With a scream that sounded like his last breath, Kelly filled Kate’s valiant vagina with his cum.

“Heh… seeing it up close is amazing,” Dorothy said in awe.

The werewolf sisters were sprawled out on the table, panting heavily and leaking semen from their crotches. And her son was still hard as a rock…

“Wait, Kelly? Kelly, hey… wait! I’m not done yet…!!”

Kelly woke up early in the morning.
He wasn’t sure where he had passed out, but his memory remained intact after that point. He’d fucked Kate and Linnie in the dining room, and then…
Then…

“Hm?”

When I sat up, there were three naked women lying around me—Kate, Linnie, and Dorothy.

“Oh!”

Dorothy was also naked, with semen leaking from between her legs.

“What the hell…”

Kerry’s eyes filled with tears.

“U-Uh… Did you wake up, Kerry?”

“Mom.”

“…N-No way I got off that much to my own son…”

“Sorry, sorry.”

“I see… If you did it on purpose I would’ve killed you. But since it’s a full moon, there won’t be any pregnancy, right?”

She stood up unsteadily and covered Kate and Linnie with a cloth, then gave them a slightly kinder look.

“But still, shouldn’t they get tougher wives as well? For their own safety.”

“T-there’s no way I’d want to become an additional wife for such a reason!”

“A mother who was raped by force isn’t pitiful?”

“Sorry, sorry…”

Despite being in her late twenties with children, Dorothy is still pretty hot. But Kelly thinks it’s better not to say anything.

If he does, people will just call him a real mama’s boy and tell him that he can’t live like this.

“…But it feels good after so long.”

"Stop saying things that are hard to answer, Mom."

"Hahaha. Well, Ogre women don’t really care about such things."

"That’s so embarrassing."

"Do you want me to say it again? I’ll do it for real this time."

"I’m sorry, I’m sorry."

It was the dawn when Kelly Isaac learned another reason why he couldn’t go against his mother: she was the wife of the strongest man in the Ogre cattle colony.

Beastmen are highly susceptible to the phases of the moon.
The fluctuations in their physical abilities and sensory perception—particularly during the night—are especially pronounced; coupled with psychological euphoria, their capabilities can swing by nearly double at their peak.
It goes without saying that they reach their zenith during a full moon, and find their greatest calm during a new moon.

Incidentally, Ogres also react to the lunar cycles, though not as intensely as Beastmen.
This is a common trait among races with an affinity for darkness, such as Dwarves and Dark Elves, and for them, activity reaches its peak during a new moon.
The closer they are to the darkness, the stronger they become. Races that already lack night vision find it nearly impossible to contend with these denizens of the dark, who exert abilities far beyond their normal limits.
This is the reason why the night-raid tactics of the nocturnal soldier units—specialties of the multi-racial nation of Celesta and the Dwarf kingdom of Goat in the southern continent—have been feared for many years. It has become standard practice for neighboring nations to schedule heightened border defenses, particularly during the new moon.

Now, these characteristics naturally extend to reproductive capabilities as well.
When individuals of these two races, possessing such subtly opposing natures, engage in a relationship, a somewhat troublesome problem arises.

"Big brother Kelly, is it no good anymore?"

"Ugh, uh... look, you two, give me a little break. I'm not as young as I used to be."

"You're still in your twenties, so you mustn't use age as an excuse. ...Did you do it somewhere else?"

"I didn't! Ogres just get out of sorts on full moon days!"

The Mikagami sisters, the wolf-beastmen Lynne and Kate, were busy licking a limp member.

Kelly and Isaac sat there, snorting with heavy breaths, utterly overwhelmed by the two women's libido.

"Seriously, no matter how you look at it, once an hour from morning until night... that's not exactly a civilized lifestyle..."

Kelly pulled his hips away from the two, who still looked reluctant to let go, and began pulling up his underwear and trousers while wiping his waist with a damp cloth. If he left them alone, they would relentlessly continue licking him until he was erect again.

"Personally, I wouldn't mind at all if you left it inside me for an entire day..."

"Big sister is cheating. I won't be able to do that."

"Dear... besides, Kelly-san has his own life to attend to."

"You two, go outside and wear clothes once in a while... and what do you mean, 'waiting for my cock in my room all day'?"

The elder sister, Lynne, smiled disheveledly as she tugged at the bedsheets, while the younger sister, Kate, smiled brightly, her tail wagging vigorously.

"Because we love you so much, Big Brother Kelly."

"I... I am still not quite used to... well, if possible, I would like it a bit more frequently. My body especially craves it during the full moon, so I believe it is vital to get used to it now."

"I'm telling you... sigh..."

As much as he was happy about it, he felt they were getting a little too obsessed.

From the night she first bonded with Kelly, Lynne had rushed back to Kuika to submit a transfer request. While it would take a normal human over a month one way, she had completed the round trip in only ten days by making maximum use of the Great Sand Labyrinth.

Even though she had taken shortcuts, it was a level of mobility truly remarkable for a wolf-beastman.

"I ran without even sleeping because I wanted to see you, Kelly-san."

"...I told you, don't bring three Rock Golems along with you!"

It was the first time Kelly had faced that many Rock Golems simultaneously since the Ace Knight exam, but through cooperation with Lynne, he had managed to intercept them.

He realized then that Lynne was indeed incredibly strong, living up to her reputation as a rising star of the Western Third Infantry.

While her primary style relied on martial arts utilizing her powerful leg strength, her swordsmanship was by no means clumsy; she had even performed the feat of severing a Rock Golem's arm with an unremarkable longsword.

"...If you gain enough experience over there, becoming a Master Knight won't be just a dream."

"But I am already Kelly-san's wife now! ♪"

Three days ago, in a corner of the labyrinth littered with the remains of five Rock Golems, she had ignored both her travel fatigue and the aftereffects of battle to suddenly pounce on Kelly, demanding sex to celebrate their reunion.

"In a few more days, I have to head back to Basson."

"...That's a shame."

"We won't be able to do anything with your cock until we get there..."

The wolf sisters both let their ears droop.

The door swung open with a bang.

"Just quit the military already."

"Mom!"

Dorothy, her mother, gave a firm thumbs-up sign.

"I'm telling you, the military isn't some casual labor job where you can just come and go as you please!"

"If I desert like this, they won't even come looking for me, will they? No one even knows our colony exists anyway."

"Well, you did host the Centurion and Addison the other day."

"Don't you think they'd understand?"

"Based on what logic!?"

At any rate, Mother was fully committed to her ambition of seeing her grandchildren born. Ever since Kate and Linne had made their "promise" to marry Kelly, they had been completely preoccupied with making babies.

"I... I want to work in the military for at least another three years..."

"Three years in the military..."

"By the time you come back, your sister and I will have grown the family to fifteen people!"

For Wolf-kin, it was the norm to give birth to two pups at a time.

"What should we do? I wonder if Basson has any childcare facilities."

"They don't..."

"It'll be fine, it'll be fine! I'll look after them in town!"

"Well, well. If it looks like they're about to be born, send me a letter. I'll come help out."

"Wait, both of you. And Mom, calm down. Is it a settled matter then? That you're going to keep pumping them out until your limit?"

Kate nodded vigorously. Linne looked away, blushing.

"...U-Um... Well... I think even if we don't think about it, it'll probably just happen every year... Because, well, I probably won't be able to stop having sex with Kelly-san."

"Right? ♪"

"Yeah."

"It sounds quite reliable to me."

Even Mother joined in, nodding in agreement.

"...No, well..."

Kelly was left behind, feeling somewhat at a loss.

If viewed as someone else's problem, a harem where the sisters were eager to breed would be a dream come true, but once multiple women conspired together, they became uncontrollable no matter how hard one tried to restrain them.

Kelly felt a pang of sympathy, wondering if Addison felt this same sense of isolation, being so well-loved by both Selene and the Centurion.

In reality, it was simply because Kelly was a wimp who couldn't be firm with women.

That being said.

"First of all."

"Yes."

At the dinner table, Mother slammed her hand onto the table with a bang, making Kelly flinch.

Kate and Linne, wearing Dorothy's oversized old shirts (they were far too baggy, but their own clothes were too soaked in fluids from sex to be worn), looked up at Dorothy with puzzled expressions.

"Don't you think it's pathetic, Kelly? To declare an 'out of ammunition' status just because it's a full moon, when these women are so full of motivation?"

"I mean, come on. You can understand a little, Mom."

"That's not the point! These wonderful girls are saying they'll bear your children even if they have to stretch their pussies wide. A real man would manage to get an erection or two even on his deathbed!"

"Mom, please, let's not use such vulgar language at the dinner table."

"I'm—telling—you!"

Bang, bang, bang! Dorothy slammed her fists against the table.

"It was a bit pricey, but I managed to get a huge portion of Hellboar liver."

"...Ugh."

"? Kelly?"

"I... I'm not good with offal."

He was the strongest man in the Minotaur colony, but he was also a man of incredibly picky tastes.

"Shut it."

Dorothy had no intention of listening. She plucked a piece of raw Hellboar liver, grabbed Kelly by the jaw, forced his mouth open, and shoved it in.

"B-Bmuooooo!?"

"They say eating fresh, raw liver acts as an aphrodisiac that even a seventy-year-old geezer can handle. Kelly, with this, you can make the two of them... Ah! Don't you dare spit it out!"

"I—I told you, I can't stand it... uugh!"

Kelly's eyes welled with tears.

However, Kate caught the liver he had just spat out. Then, she attempted to feed it back to Kelly via mouth-to-mouth.

"H-Hey, Kate!?"

Kelly's eyes teared up even more. He could have pushed her away if he wanted to, but doing so would be the lowest thing he could do.

"Mmph...!"

"Mugugu..."

In the end, he was forced to swallow. Kate pressed her face against his mouth, leaving him no way to spit.

"...Ghueh."

He swallowed it.

"I-It's... it's actually good. It's super good."

"Here, another one."

"I can't take this anymore..."

But standing before Kelly were Kate, holding another chunk of liver in her mouth, and Lynne, who was following Kate's lead, picking up a piece of liver and preparing to take it into her own mouth.

"Bmuooo!!"

Through his tears, he ate every last bit.

---

"Ugh... sob... I thought I was gonna die..."

Kelly rinsed his mouth while sobbing uncontrollably. He looked like a maiden who had just been violated.

Yet, even in that moment, a change was occurring within his body.

"Ugh... damn it..."

Kelly's manhood was steadily growing. And along with it, his sexual desire began to overwhelm his very thoughts.

"Nngh..."

Kelly shook his head.

He wanted to ejaculate with Kate and Lynne. He wanted to ravish them however he pleased.

If this had been the Kelly of a few weeks ago—the virgin—he might have been able to endure it. But Kelly now knew the truth of a woman's body.

He knew exactly where his lust belonged.

Once it reached that point, the heightened sexual desire could only be sublimated through that very act. Even if his reason were satisfied, his instincts would continue to demand it.

"Ku... o... oooooh..."

Slowly rising to his feet, Kelly looked down at Kate and Linne, who stood at waist-height. Caught in their expectant gazes... his teeth ground together with a sharp click, and a hot breath escaped his nostrils.

"...L-Let... LET ME DO IT!!"

With a voice that even surprised himself, the tiny fragment of reason remaining in him reached out toward the two.

"Wau♪"

"Au... K-Kelly-san♪"

Grabbing them both in his hands and flipping them upside down, their bare buttocks spilled outward. He took the member protruding from the edge of his trousers and forced it into Linne, where he had gripped her.

"Haaaa...♪"

As Kelly’s thick member forcibly pried her small crotch apart, Linne thrust her tongue out in ecstasy. Linne herself was also in a state of intense heat, her liver slightly nibbled on, bolstered by the effects of the full moon.

Kelly plunged deep into her vagina all at once. Even so, it was only halfway; Kelly’s enormous member could not penetrate any deeper than that. Driven to frustration by the limitation, Kelly withdrew and, as if impatient, slammed Linne's hips back against his member with violent force.

It was a motion purely for the sake of masturbating using Linne's genitals. It was a "pussy-jerk" that completely disregarded Linne's comfort. However, that was exactly the kind of masochistic sex Linne loved.

"Haaa, agu, aaah♪ Kelly-san, Kelly-san! More, more♪ Harder... aaaah!!"

She was completely under the dominion of this powerful, ferocious man. In this moment, her value was not that of a proud warrior or a righteous wolf-beastman; she was nothing more than a woman, nothing more than a pussy, nothing more than a hole to rub this man's cock against. Linne felt an overwhelming ecstasy in being treated this way and being bred.

Kelly was the person who could satisfy her at the level of her primal beastly instincts, through this kind of brutal sex performed in his state of arousal.

"Auu, aaah, wau, auuu... K-Kelly-san, your cock... I love your cock... I love your cock, Kelly-san, forever... I'll be Kelly-san's cock-hole for the rest of my life!!"

"Bumoooooo!!"

Kelly wasn't listening. No "promise" was being made. If Kelly were to affirm her here, he would abandon his position as a soldier, his position as an older brother, and everything else, becoming a sex slave far beyond the title of a wife. That was how much Linne yearned for Kelly, how much she submitted to his member, and how much love she felt.

"Kelly... san...!!"

And then, without any regard for Linne, Kelly rampaged through her vagina as he pleased and ejaculated grandly inside her womb.

"Ah... agaa♪ Kuwa... auuuu!!"

After the intense bout of sex—a mixture of pain and pleasure—Linne succumbed to a violent climax triggered by the mercilessly discharged seed, falling into unconsciousness.

Even witnessing Linne's harrowing state, her younger sister's eyes only glittered with excitement. Having spent so much time engaging in lewd acts with Kelly, Kate was already accustomed to Linne's fetishes, as well as his sheer size and ferocity; nothing about it was frightening to her. Having spent enough days in such debauchery, Kate had evolved into an even more perverted girl than her sister.

"Hauuuu♪"

As if his business was finished, Kelly pulled his member out of Linne and thrust it into Kate. He tossed Linne aside onto the table. Lying atop the tablecloth, Linne opened her eyes slightly after a few seconds; feeling the seed overflowing from her crotch, she let out a faint smile.

Meanwhile, her sister was being used as Kelly's masturbation tool, just like her sister had been.

"Gafu, afu, au, kafu♪ ...K-Kelly-niichan, you're amazing... it feels so good♪"

As her deep vaginal walls were rhythmically and greedily devoured, Kate wagged her tail in pure joy.

It looked like violent, destructive sex. In fact, most of his reason had flown out the window, and he wasn't giving a single thought to Kate's convenience.

Yet, even so, enough restraint remained to ensure he didn't actually break her. No matter how much he followed his instincts, Kelly’s inherent gentleness toward a weaker partner remained.

That tenderness was so unbearably precious that, even while pinned down and unable to move freely, Kate moved her hips with all her might, trying to help Kelly reach his pleasure.

"Bguooooooh...!!"

Sensing her efforts, Kelly let out a low groan as he struggled to endure the pleasure.

"It's... it's okay... Brother Kelly... you can... come...♪"

"U-ugoooooh...!!"

The tiny wolf beastkin wriggled her hips, urging the massive bull ogre to ejaculate.

Her expression and her movements were drenched in a love that transcended mere lust.

Ultimately, Kelly's beastly nature lost to it.

"Bmuooooooooh!!"

With a roar like a death rattle, Kelly ejaculated profusely inside Kate's devoted womb.

---

"Whew... seeing it right in front of me, it’s really something..."

Dorothy watched, completely stunned.

The wolf beastkin sisters had collapsed onto the table, panting heavily, with semen overflowing from between their legs.

And her son... his massive member was still rock hard, unyielding...

"...Wait, Kelly? Kelly, hold on... wait, even I... ah...!!"

---

Kelly woke up at dawn.

He wasn't sure exactly when he had blacked out. He had memories of even after his reason had vanished—of raping Kate and Linne in the dining room, and then...

And then...

"Hmm?"

As he sat up, he noticed three women sprawled about.

Kate, Linne, and Dorothy.

"Wait!?"

Dorothy had also been stripped naked, semen overflowing from between her thighs.

"Oh, god..."

Kelly's eyes began to well up with tears.

"U-uuu... are you awake, Kelly?"

"Mom."

"...I-I can't believe I was made to climax that much by my own son..."

"I'm sorry, I'm so sorry."

"Ugh... if you had done it on purpose, I'd have killed you. Well, it's a full moon, so you shouldn't get pregnant."

Dorothy stood up unsteadily, draped cloths over Kate and Linne, and wore a somewhat gentle expression.

"Still, shouldn't you find yourself a proper, tough ogre—or at least a bull ogre bride—for the sake of these girls' safety?"

"That's... that's a terrible reason to take an extra bride! It's not fair to the woman!"

"And I suppose the mother who was raped in the heat of the moment isn't a victim of unfairness?"

"I'm sorry, I'm so sorry."

Kelly thought that Dorothy, who was still quite stunning for a woman with a child nearing thirty, was a real temptress, but he decided it was best to keep that to himself.

If he spoke up, he'd just be called a total mama's boy. He wouldn't survive it.

"...But it really has been a while. That felt good."

"Don't ask things that are hard to answer, Mom."

"Ahaha! Well, ogre women don't mind things like that all that much."

"That's a bit much, even for you."

"Do you want me to say it again? That I just got a little carried away?"

"Alright, alright, I get it."

Kelly Isaac. It was a dawn that added yet another reason why the strongest man in the bovine ogre colony could never defy his mother.

Beastmen are highly susceptible to the phases of the moon.
Especially their physical abilities and sensory powers change drastically at night, peaking with mental exhilaration to nearly double their usual capacity.
Needless to say, this is at its maximum during a full moon and most subdued during a new moon.

By the way, Orcs also react to the lunar cycle, though not as strongly as Beastmen.
This is a common trait among races suited for darkness—not just Orcs, but also Dwarves and Dark Elves—and they become most active during a new moon.
The closer they are to darkness, the stronger they get. Even those without night vision struggle against these denizens of the dark, who exhibit abilities beyond their normal capacity.
This is why the night raid tactics favored by the multi-ethnic nation of Celesta and the Dwarven kingdom of Goth in the southern continent have long been feared. Neighboring countries have established schedules to reinforce their borders, especially during new moons.

Now, these traits obviously relate to reproductive capabilities.
When races with these subtly opposing characteristics get together, it can lead to some troublesome issues.

"Kelly, you good?"

"Ugh… yeah. And you two, maybe ease up a little? I’m not exactly young anymore."

"You’re still in your twenties; don’t use age as an excuse! …Did it happen somewhere else?"

"No way! Orcs get sluggish during a full moon!"

The Wolfkin sisters, Lynne and Kate, licked the softened shafts with relish.
Kelly and Isaac were puffing out their cheeks, overwhelmed by the two women’s libido.
"Seriously, one hour every waking moment from morning till night isn’t exactly… cultured…"

He pulled away from the still-desperate pair, wiping his groin with a damp hand before pulling up his pants and trousers. If left unchecked, they’d relentlessly keep licking him until he was hard again.

"If it were up to me, I wouldn’t mind being stuffed all day long…"

"Sis, that’s cheating! Then I won’t get any!"

"Yeah… Besides, Kelly-san has a life too."

"You two should go outside wearing clothes once in a while… Seriously, waiting for my dick in your room all day?"

Lynne tugged at the sheets and grinned mischievously, while Kate wagged her tail happily.

"Because we love Kelly-bro!"

"W-well… I’m still not used to dicks, so, if possible, a little more would be nice. Especially during full moons, my body craves it, so getting used to it now is important."

"That’s what I’m saying… sigh."

It’s great that they’re happy, but maybe they’re a little too into it.

Lynne had rushed back to Quieca the night she made her deal with Kelly and submitted a transfer request. For a normal human, it would take over a month one way, but using the Desert Labyrinth to its fullest extent, she’d made the round trip in just ten days.

Even with the shortcut, that was astonishing mobility for a Wolfkin.

"I wanted to see Kelly-san so badly, I ran without stopping!"

"…That’s why I told you not to drag three stone golems along!"

It had been since the Ace Knight exam that Kelly had faced that many stone golems at once, but somehow, with Lynne’s help, he managed to repel them.

He realized then just how strong Lynne was—no wonder she was highly regarded in the Western Third Infantry Regiment.

Her main strength lay in her powerful legs and body techniques, but she wasn’t clumsy with a sword either. She even managed to sever an arm off one of the stone golems with what looked like an ordinary longsword.

"…If you put in the work on that side, becoming a Master Knight isn’t just a dream."

"But right now, I’m Kelly-san’s wife! ♪"

Three days ago, I completely ignored my travel fatigue and the afterglow of battle, and in a corner of the labyrinth where five stone dolls were scattered, I suddenly jumped on Kelly and demanded another round of reunion sex.

"Man, I gotta head back to Basson in like, what, three more days?"

"...That's a shame."

"I can't get any action until I get there..."

The wolf sisters perked up their ears.

Swing! The door burst open.

"You quit the army, huh?"

"Mom!"

Dorothy gave the thumbs-up with her pinky and thumb.

"Now, now, it ain't like you're some hired hand who can just waltz in and out whenever you feel like it! The army's not that kind of place!"

"If you just ghost on them, they won't even come looking for you, right? Besides, nobody knows about our colony anyway."

"Well, we did put up the Centurion and Smisson the other day."

"They'll understand, right?"

"On what basis!?"

Mom was already in full-on ambition mode for the grandkids. Since Kate and Linne made that "marriage" promise with Kelly, they were completely obsessed with making babies.

"I wanna work in the army for at least three more years..."

"Three years in the army..."

"By the time I get back, you two will have combined to make a family of fifteen!"

Wolf-people usually give birth to twins.

"What should we do? Does Basson even have daycare?"

"Nope..."

"It's all good, it's all good—I'll take care of them in town."

"Oh my, if one of you goes into labor, send a letter, and I'll come help!"

"Wait, both of you. And you too, Mom. Are we definitely going to go all out on the baby-making?"

Kate nodded enthusiastically. Linne looked away, blushing.

"...U-um... well, probably, even if we don't think about it, we'll just keep getting pregnant every year... and, uh, I don't think we can stop doing the thing with Kelly."

"Yeah~!"

"Yep."

"That's reassuring as all hell."

Mom joined in the nodding.

"...Um, well..."

Kelly was left out in the cold, feeling a little lost.

If it were someone else, she'd be thrilled at the thought of a harem of sisters making babies, but when women gang up like this, they become completely uncontrollable.

Smisson must feel so left out too, Kelly thought with a twinge of sympathy, being liked by Selen and the Centurion.

But really, it was just that Kelly was a hopeless pushover when it came to women.

"Even so."

"First—"

"Yes."

At dinner, Dorothy slammed her hand on the table, making Kelly jump.

Kate and Linne stared up at Dorothy with puzzled expressions, wearing Dorothy’s old shirts (loose as hell, but their own clothes were ruined from getting soaked in fluids during sex).

"Isn’t it pathetic that even though these girls are so eager to do it for you, you’re pulling a ‘no-go’ just because it’s a full moon?" Dorothy asked.

"Well, Mom, you’ve gotta understand—"

"It’s not about understanding! These fine ladies are practically begging to stretch their pussies for your kids—doesn’t a real man get his dick hard even at death’s door? One or two stiff ones, right?"

"Mom, this is dinner time—try not to be so vulgar."

"BUT—"

Bang, bang, bang! Dorothy hammered the table.

"I paid through the nose for a ton of Hell’s Bore livers."

"...Ugh."

"Huh? Kelly?"

"M-me, I don’t like offal."

The colony’s strongest bull, despite his many dislikes.

"Enough!"

Dorothy wouldn’t listen.

She plucked a raw Hell’s Bore liver, grabbed Kelly’s chin, forced his mouth open, and shoved it in.

"B-Bloody hell!?"

"They said eating this fresh and raw would give even a seventy-year-old the energy of a stallion—Kelly, this’ll make you two—" Ah! "Don’t puke!"

"I-Ick, I don’t like it!"

Kelly’s eyes welled up with tears.

But Kate caught the vomited liver in her mouth.

Then she tried to feed it back to Kelly.

"K-Kate!?"

Kelly’s eyes brimmed even more. He could shove her away, but that’d be the worst thing ever.

"Ugh..."

"Mnng..."

He ended up eating it from Kate anyway.

And Kate pressed her face into his mouth, not letting him spit it out.

"...Guh."

He swallowed it.

"T-this is insane. So insane."

"Here, next one."

"I can't take it anymore!"

But before Kelly could even finish, there was Kate, still gnawing on the next piece of liver, and Linne, mimicking her, trying to pinch and stuff another piece into her mouth.

"BLEH!!"

She ate it all while crying.

"Ugh… ugh, I thought I was gonna die…"

Kelly washed her mouth out, sobbing uncontrollably—like a maiden who’d just had her innocence violated.

But even as she did, changes were happening to Kelly’s body.

"Ugh… damn it."

Kelly’s cock was swelling rapidly.

And with it, her libido began to overwhelm her thoughts.

"Ugh…"

Kelly shook her head.

She wanted to cum for Kate and Linne. She wanted to do whatever she pleased with them.

If this were the virginal Kelly of a few weeks ago, she might have been able to resist. But Kelly had already tasted women.

She knew where her libido could go.

And once that happened, there was no other way to sublimate that heightened lust.

Even if reason was satisfied, instinct demanded more.

"Ugh… o—ohhh."

Kelly slowly stood up, looking down at Kate and Linne, who were barely taller than her waist.

She met their expectant gazes…

…And with a gnash of teeth and a puff of hot breath from her nose, she roared:

"…Y-yes… y-you let me do ittt!!"

The last remnants of her reason reached out to them in a voice that even surprised herself.

"Waaah!"

"Au… Ke-Keeriiisaaannn!"

She grabbed both of them, flipping each one over so their bare, pantiless butts hung free.

With her right hand, she forced her throbbing cock—peeking out from the edge of his pants—into Linne’s snatch.

"Haaaaa…♪"

Linne stuck out her tongue, moaning in pleasure as Kelly brutally spread her tight little folds to accommodate his thick shaft. Linne had also eaten a bit of liver earlier, and with the full moon’s effect, she was in an intense state of heat.

Kelly plunged into her depths in one swift motion.

But even then, it was only halfway. Kelly’s long, thick cock couldn’t go any further.

With reason completely gone, Kelly pulled out in frustration, slamming his hips back against Linne’s cunt with forceful thrusts.

It was pure, self-serving masturbation—using Linne’s body as nothing more than a tool for his own pleasure, completely disregarding her comfort.

But that was exactly the kind of masochistic sex Linne loved.

"Haaah, aggh, ahh! Keeriiisaaan, Keeriiisaaan! More, morettt! Harder… ahhh!!"

I am completely under the control of this strong, fierce man.

My worth now isn’t that of a proud warrior or a righteous lycanthrope, but merely a woman, merely a cunt, merely a hole to rub his dick against.

Lynne was overwhelmed with ecstasy by being treated like this and impregnated.

Kelly was the one who satisfied her on a primal, animalistic level, and this brutal sex he performed while aroused was exactly that.

"Uwah, aah, wau, uwu… Ke- Kelly-san, chinko… I love your dick… I’ll love your dick forever… I’ll be your dick hole for life!!"

"Bumooooh!!"

Kelly wasn’t listening. No "promise" would stand.

If Kelly affirmed this here and now, she’d abandon her position as a soldier, her role as an older sister—everything—to become nothing more than a sex slave beyond the title of wife, for all eternity. Lynne burned that much for Kelly, had surrendered so completely to his cock, felt such love.

"Kelly… saaan!!"

And with no regard for Lynne, Kelly ravaged her cunt as he pleased, then shot his load deep inside her womb.

"Ahh… aghh♪ Kuaa… uwuuu!!"

After a relentless mix of pain and pleasure, Lynne was driven to climax by the mercilessly unleashed seed and fainted.

Even witnessing Lynne’s ravaged state, her sister only sparkled with delight.

She was already used to Lynne’s kinks, Kelly’s size, his ferocity—none of it was frightening anymore. The more days she’d spent fucking Kelly like crazy, the more Kate surpassed Lynne in depravity.

"Hauuuu♪"

As if his business were done, Kelly pulled his cock from Lynne and shoved it into Kate.

Lynne was tossed onto the table with a thud. A few seconds later, she opened her eyes slightly, felt the seed overflowing from her crotch, and smiled faintly.

Meanwhile, her sister was being used as Kelly’s masturbation tool just like her older sister.

"Gahf, ahf, auh, kahf♪ ……Keri, Onii-chan, su-goo… iiii♪"

Her cunt’s depths were greedily devoured in a rhythmic assault, and Kate wagged her tail in delight.

It looked like brutal, destructive sex. In fact, most of her reason had fled, and Kelly wasn’t considering Kate’s comfort at all.

But still, he retained just enough control not to break her. No matter how much he followed his instincts, Kelly’s kindness toward the weaker opponent remained.

That was so endearing that Kate, even while restrained and unable to move freely, desperately wagged her ass to help Kelly reach climax as little as possible.

"Bugoohooo!!"

Feeling that, Kelly groaned low, as if resisting pleasure.

"I-it’s okay… Onii-chan, you can cum… any time now♪"

"Uugghooo!!"

A small lycanthrope wagged her ass, urging the massive bull ogre to climax.

More than lust, her expression was drenched in love, and her movements…

In the end, Kelly’s beastly nature succumbed to it.

"Bumoooooh!!"

With a death cry-like roar, Kelly shot his load generously into Kate’s earnest cunt.

"Haa… seeing it up close is something else."

Dorothy watched in awe.

The lycanthrope sisters lay collapsed on the table, panting as seed dripped from their crotches.

And her son was still hard, rock solid…

"…Kerry? Kerry, wait a— Ah! Damn it!"

Kerry woke at dawn.
She couldn’t remember where she’d lost consciousness. Even after reason fled, her memories remained. She’d fucked Kate and Linne in the dining room, and then…
And then…

"Huh?"

She sat up abruptly, only to see three women sprawled out.
Kate, Linne, and Dorothy.

"What the—!?"

Dorothy was naked too, her thighs slick with semen.

"W-What the hell…"

Kerry’s eyes were brimming with tears.

"U-Um… you’re awake, Kerry."

"Mum."

"...I can’t believe I got screwed like that by my own son…"

"I’m so sorry, I’m so sorry."

"Ugh… if it was on purpose, I’d kill you. But hey, it’s a full moon, so no pregnancy worries."

Dorothy staggered to her feet, draping cloths over Kate and Linne before giving them a slightly gentle look.

"Still, shouldn’t these girls get proper, tough Orc or Bull Orc husbands for their own safety?"

"T-That’s just cruel to the women who’d be added as wives!"

"A mother who gets screwed due to excess momentum isn’t pitiable?"

"I’m so sorry, I’m so sorry."

Dorothy, still hot at almost thirty with a kid, was quite the sight, but Kerry decided it was best left unsaid.

She’d just be labeled a hardcore momma’s boy. She couldn’t live like that.

"...But it feels good after such a long time, doesn’t it?"

"Don’t say things I can’t answer to, Mum."

"Ahahaha. Well, Orc women don’t care much about that sort of thing."

"I don’t want that either."

"How about one more go? Just because of the momentum thing?"

"I’m so sorry, I’m so sorry."

It was dawn, and another reason why Kelly Isaac couldn’t defy the strongest man in the Bull Orc Colony had been added.

Beastkin are highly susceptible to the phases of the moon.
Their physical capabilities and sensory acuity fluctuate markedly at night, and when combined with heightened mental arousal, their abilities can swing by nearly double their baseline.
As is well known, they reach peak power during a full moon and become most subdued during a new moon.

By the way, Orcs also react physically to lunar cycles, though not as dramatically as beastkin. This trait isn't unique to Orcs; it's shared among races adapted to darkness, including Dwarves and Dark Elves. For them, activity peaks during the new moon.
The closer they are to darkness, the stronger they become. Races that lack natural low-light vision find themselves hard-pressed against nocturnal dwellers who exceed their usual capabilities even in normal conditions.
This is why night raids by nocturnal soldiers—a tactic mastered by multi-racial Celesta and the southern Dwarf Kingdom of Gort—have long been feared. Neighboring nations have established a standing protocol to reinforce border defenses, especially during new moons.

Now, these characteristics naturally extend to reproductive capacity as well.
When individuals from species with subtly opposing traits intermingle, certain troublesome complications arise.

"Brother Kelly, is it already over?"

"H-huh? Come on, you guys need to hold back a bit. I'm not exactly young anymore."

"If you're still in your twenties, you can't use age as an excuse... Did someone else do it?"

"No way! Orcs get worse during full moons!"

Lynne, a wolf-beastkin, lapped at Kelly's limp member with a wet tongue while Kate and her sister Mikagami watched.
Kelly and Isaac puffed out their noses in frustration, utterly overwhelmed by the two sisters' insatiable desire.
"Seriously, even if we're talking about culture here, having sex every hour from dawn to dusk isn't sustainable..."

Reluctantly withdrawing from the still-pining pair, they wiped their damp hands with a towel and pulled on their pants and trousers. Left alone, Lynne would continue licking insistently until he became erect again.

"If I were serious about it, I wouldn't mind staying inserted for an entire day... but..."

"Sister's being unfair. If that's the case, I can't do it."

"Yes... besides, Kelly has his own life to consider."

"You two should wear clothes and go out sometimes... come on, spending the whole day waiting in my room for my dick is ridiculous!"

Sister Lynne pulled the sheets aside with a mischievous smile, while younger sister Kate grinned brightly, wagging her tail energetically.

"Because I love Brother Kelly so much."

"W-well, I'm still not used to... uh, having it inside me. If possible, I'd like a bit more. Especially during full moon periods when my body craves it intensely, so getting accustomed now is crucial."

"So that's why... haa..."

Though happy about the affection, he felt they were indulging too much.

Since the night she consummated her union with Kelly, Lynne had rushed back to Queeca and submitted her transfer request. While a normal human would take over a month for the round trip, she made the most of the Desert Great Labyrinth, completing the journey in just ten days.

Even accounting for shortcuts, this demonstrated the astonishing mobility unique to wolf-beastkin.

"I ran nonstop without sleeping because I wanted to see Kelly so badly."

"...So don't drag three rock golems along with you!"

Facing multiple rock golems simultaneously hadn't happened since the Ace Knight trials, but thanks to Lynne's cooperation, Kelly managed to repel them successfully. At that moment, he realized just how formidable she truly was—living up to her reputation as a promising future officer of the Third Western Infantry Regiment.

Her primary strength lay in martial arts leveraging her powerful legs, yet she was far from clumsy with a blade; she even displayed impressive skill by severing a rock golem's arm with a seemingly unremarkable longsword.

"...If you gain proper experience there, becoming a Master Knight isn't out of the question."

"But right now, I'm already your wife, after all♪"

In a corner of the labyrinth where the five limbs of the rock golem lay scattered, three days ago I had completely ignored both my travel fatigue and the lingering echoes of battle to suddenly pounce on Kelly, begging for erotic reunion.

"Once a few more days pass, we'll have to return to Basson," said one.

"...That's unfortunate," replied the other.

"We won't be able to use our... uh... until we get there..."

The two wolf sisters hung their heads in shame.

With a bang, the door swung open.

"Quit the military already!"

"Mom!"

Mother Dorothy immediately flashed her thumb-squeezing sign.

"That's exactly why it can't be something you join or leave based on your mood! The military isn't like that!"

"If we bail out now, won't they stop calling us? Nobody knows about our colony anyway."

"But didn't you host the Captain and Smayson just yesterday?"

"Wouldn't they understand?"

"On what basis!?"

Mother was fully committed to her grand ambition of welcoming grandchildren. Since Kate and Linne had made their "promise" to marry Kelly, they had become completely obsessed with conception.

"I'd like to work in the military for at least another three years..."

"Three more years in the military..."

"When you return, we'll have a family of fifteen—me, your sister, and me!"

Wolf beastfolk typically give birth two at a time.

"What should we do? Is there any childcare facility in Basson?"

"There isn't..."

"Don't worry, don't worry—I'll take care of them myself in town!"

"Oh my. When you're ready to give birth, just send us a letter; I'll come help out."

"Wait, both of you... No, Mom, calm down. Are we really determined to keep giving birth until our limits?"

Kate nodded cheerfully. Linne shyly looked away.

"...W-well... probably... if we don't think about it at all, we'll just end up getting pregnant every year... Probably because I can't stop having sex with Kelly..."

"Right♪"

"Yeah."

"That's truly reassuring."

Even Mother nodded in agreement.
"...No, but..."
Kelly felt left behind and slightly at a loss.

From an outsider's perspective, it would be nothing short of a delightful harem where the sisters happily collaborate on making children. However, when multiple women form a united front, controlling the situation becomes nearly impossible.

Kelly sympathized a bit with Smayson, wondering if she too was experiencing this same feeling of being left out while being favored by Selen and the Captain. In reality, Kelly was simply too timid to speak firmly to the women.

Anyway.

"First of all—"

"Yes."

At the dinner table, Mother slammed her hand down on the table with a bang, and Kelly flinched.

Kate and Linne were staring up at Dorothy with puzzled expressions, wearing Dorothy's oversized secondhand shirts—far too big for them, though their own clothes had been soaked through during sex and weren't fit to wear anymore.

"It's one thing that women are full of desire, but declaring a 'dry spell' just because it's a full moon? Don't you think that's pathetic, Kelly?"

"Well, come on, Mom. You get it too, right?"

"That's not the point! These wonderful daughters are saying they'll stretch their vaginas to give birth to your child no matter what—even if it's your last breath! Even a man needs at least one or two erections when he's dying, doesn't he?"

"Mom, this is dinner time. Stop being so vulgar."

"B-but!"

Bang, bang, bang! Dorothy slammed the table again.

"I got plenty of Hellboar liver; it was a bit pricey, but worth it."

"...Ugh."

"Kelly-san?"

"Oh, I—I don't like organ meats."

He was the strongest male in the Cow-Ogre colony, yet he had so many food dislikes.

"Noisy."
Dorothy showed no interest in listening.

She plucked out a raw piece of Hellboar liver, grabbed Kelly by the jaw, forced his mouth open, and shoved it inside.

"B-bloooowww!?"

"If you eat fresh raw liver, even a seventy-year-old grandpa can get an erection. It's an aphrodisiac, Kelly. With this, the two of us—aaah, don't vomit!"

"I-I just don't like it, ugh..."

Kelly was on the verge of tears.

But Kate caught the expelled liver in her mouth.
Then she tried to feed it back to Kelly mouth-to-mouth.
"Oh, hey, Kate!?"
Kelly's eyes filled with even more tears. He could push her away if he wanted to, but doing so would make him the lowest kind of person.

"Mmm... uh..."

"Gugu."

She eventually made him swallow it.

Then Kate pressed her face against Kelly's mouth, refusing to let him spit it out.
"...Gheww."
He was forced to swallow.

"I-I can't believe it. It's seriously amazing. Super seriously amazing."

"Here, next one after this."

"No more, I can't..."

But before Kelly stood Kate, biting off the next piece of liver, and Linne, mimicking her, trying to pinch and bite into a slice of liver herself.

"Brumoo!!"

He ate it all while crying.

"Gh... ugh... I thought I was going to die..."
Kelly rinsed his mouth, weeping softly, looking like an innocent girl being ravaged.
Yet even then, changes were occurring within Kelly's body.
"Gh... damn it."
Kelly's member was growing larger and larger.
With that came a rising sexual desire, gradually pressing down on his thoughts.
"Gh..."
Kelly shook his head.
He wanted to cum with Kate and Linne. He wanted them to violate him as he imagined.
If this were Kelly from a few weeks ago—a virgin—he might have been able to endure it. But Kelly already knew what it felt like to be inside a woman.
He had discovered where his vitality could go.
Once that was understood, the heightened lust could only be sublimated through action.
Even if reason found satisfaction, instinct would still demand more.
"Gh... oh... ooooh..."
Slowly rising to his feet, Kelly looked at Kate and Linne, who stood at waist height.
Receiving their expectant gazes...
He clicked his teeth sharply, exhaled hot breath through his nose, and cried out:
"...N-no, y-y... y-yes, do it!!"
With a voice so surprising even he was startled, the last remnants of reason reached out to them.

"Woo♪"

"Ahh... Ke-Kelly-san♪"

Grabbing both of them by their hands, he flipped each upside down, exposing their bare buttocks.

He forced his swollen member, protruding from the waistband of his pants, deep into Linne's tightly squeezed crotch.

"Haaah... ahg, ahh♪ Kelly-san, Ke-Kelly-san!! More, more!! Rougher... aaaah!!"

Linne panted happily, tongue lolling out, as Kelly roughly spread her small groin and thrust his thick member inside. Linne herself had eaten a bit of liver too, and combined with the full moon's effect, she was in an intense state of heat.
Kelly plunged straight to the depths of her womb.
Still, only halfway—his elongated member couldn't go any further.
The Kelly whose reason had vanished pulled out frantically, then slammed Linne's waist forcefully against his throbbing flesh again and again.
It was nothing more than masturbation using Linne's vagina, disregarding her own wishes entirely—a vaginal-only solo act.
Yet, that was exactly the kind of masochistic sex Linne preferred.
"Haaah, ahg, ahh♪ Kelly-san, Ke-Kelly-san!! More, more!! Rougher... aaaah!!"

I am completely under the dominion of this fierce, savage man.
My current worth is not that of a proud warrior or a righteous wolf-beastman; I am merely a woman, nothing more than a hole designed to rub against his cock.
Linne felt an overwhelming ecstasy at being treated thus and bred by him.
It was Kelly who satisfied her on the level of beastly instinct, through this cruel sex that Kelly performed while aroused.

"Aaaah, aaah, woof, aaaah... K-Kelly-san, c-cock... I love your cock... I'll love your cock forever... I'll become your cock-hole for life!!"

"BUHMOOOOOO!!"

Kelly didn't listen. The "promise" could not be fulfilled.

If Kelly had affirmed it here, Linne would have abandoned everything—her role as a soldier, her position as a sister—and become a sex slave beyond even the title of wife for the rest of her life. Linne burned so intensely for Kelly, submitted to his essence, and felt love.

"Kelly... there...!!"

And then, disregarding Linne entirely, Kelly ravaged her vagina at will and released a torrential ejaculation deep within her womb.

"Ahh... aaagh♪ Kuah... aaaahh!!"

After this intensely painful yet pleasurable sex that continued fiercely, Linne reached absolute climax, went completely wild from the mercilessly launched seed, and fainted.

Even witnessing Linne's harrowing state, her sister only sparkled with excitement in her eyes.
Already accustomed to Linne's sexual preferences, Kelly's immense size, and his savagery, she no longer found anything terrifying. Having spent countless days indulging in sex with Kelly, Kate had evolved into an even more depraved girl than Linne.

"Huuuuh♪"
As if the matter were concluded, Kelly withdrew from Linne and thrust himself into Kate.
Linne was casually tossed onto the table. After rolling on the tablecloth for a few seconds, she faintly opened her eyes, felt the seed overflowing copiously from between her legs, and offered a faint smile.

Meanwhile, her sister too had become Kelly's masturbatory tool.
"Gahfu, ahfu, aaah, kahfu♪ ...K-Keri, Onii-chan, you're amazing... so good♪"
Rhythmically ravaged deep in the vaginal depths, Kate wagged her tail happily.
The sex appeared rough and destructive. Indeed, almost all reason had fled; Kate's own desires were not even considered.
Yet, there remained just enough control to avoid breaking her. Despite following his instincts, Kelly still possessed a gentleness that softened his approach toward weaker partners.

That tenderness was utterly endearing, so while held down and unable to move freely, Kate strained to wag her hips desperately, trying in every way to aid Kelly's pleasure even slightly.

"BUHGOOOOOO!!"

Feeling this, Kelly growled lowly as if enduring overwhelming pleasure.

"It's okay... Onii-chan Kelly, it's okay if you cum...♪"

"Huuugooo!!"

A tiny wolf-beastman wagging her hips undulating to encourage the massive bull-ogre's ejaculation.

Her expression, drenched more in love than lust, and her movements—
Ultimately, Kelly's beastly nature succumbed to them.
"BUHMOOOOOOOO!!"
Raising a roar like a final gasp, Kelly poured himself abundantly into Kate's brave vagina.

"Haa... It's amazing to see it right before my eyes."
Dorothy watched in stunned disbelief.
The wolf-beastman sisters had exhausted themselves, collapsed onto the table, and were panting heavily while letting semen drip steadily from their crotches.

And then, his son, still erect with an unyielding member, stood firm...
"……Wait, Kelly? Kelly, wait a minute… I'm not done yet…!!"

Kelly woke up just before dawn.

He couldn't quite remember where he'd lost consciousness, but even after his rationality fled, memories remained: having ravaged Kate and Linne in the dining room, and then…

Then…

"Hmm?"

As he suddenly sat up, he found three women sprawled around him.

Kate, Linne, and Dorothy.

"Whoa!?"

Dorothy was also completely naked, her thighs spread wide with semen spilling between them.

"What the hell…"

Kelly looked utterly devastated.

"W-wakey wakey, Kelly," came a voice.

"Mom."

"……N-no way… my own son just did that to me…"

"I'm sorry, I'm so sorry."

"Guh… If you'd done it on purpose, I would've beaten you to death. But since it's full moon, you won't get pregnant anyway."

Stumbling to her feet, Dorothy draped a cloth over Kate and Linne, offering a slightly gentle smile.

"Still, wouldn't it be better for their safety if we also took a tough ogre or cow-ogre wife?"

"B-but that's cruel! Making women take on extra wives just for some purpose!"

"A mother who was ravaged by sheer force isn't the one to feel sorry for, is she?"

"I'm sorry, I'm so sorry."

Though Dorothy, a woman in her late twenties with children already, might seem somewhat unreasonable, Kelly thought it best not to press the matter. After all, being labeled an extreme mama's boy would make life unbearable.

"……But it feels good after such a long time," she murmured.

"Don't say things that are hard to answer, Mom."

"Hahaha. Well, I don't really mind ogre women anyway."

"No, I still don't want that either."

"Shall we do it again? Just because you were carried away?"

"I'm sorry, I'm so sorry."

It was dawn for Kelly Isaac, the strongest man in the cow-ogre colony, as yet another reason emerged why he couldn't defy his mother.