Mating Coupling Is the Best...!
“Haaah...!”
A scream-like moan burst out of her on its own.
A cock that reached all the way to the womb?
Counting Luna, this was already the fourth time. Of course, more experience didn’t make the sensation of a glans kissing the entrance to her uterus any more familiar—but she could at least brace for it a little.
And yet.
“G-Guest...!”
“Haa... haa... Hm? What’s wrong, Unnie?”
“It’s going to burst... my pussy’s going to burst...!”
She never imagined she would end up saying something like that in the middle of sex. “Thick” wasn’t even close to describing it. The scorching pillar stuffing her vagina to the brim felt like it was going to tear her apart...!
“Hehe, so that means it feels good, right? Even the heat-relief agents all scream the first time.”
“Hhk—haah...!”
Not even close. The cock was literally crushing her organs; she could barely breathe. Without the slightest exaggeration, an ordinary woman would have died like this. Put another way—
“But Unnie’s struggling way more than usual? Aren’t succubi supposed to turn even pain into pleasure?”
—it meant she was only alive because she was a succubus. And sure enough, even the choking agony was steadily converting into pleasure.
Drip...
Semen leaked weakly from her urethra.
“Ahaha! It felt that good, Unnie? Your little dick is crying its eyes out!”
“Ghk... hngh...!”
She didn’t even have the strength left to get angry about being teased.
“Just... pull out for now, Lunaaa...”
A female with a massive cock buried inside her couldn’t resist—that was common sense. All she could do was beg for it to come out before her mind completely broke.
But there was one piece of futanari common sense she had overlooked.
“Hm? What are you talking about, Unnie? The boss lady already said it’s okay to cum inside. I want to get you pregnant.”
“Wha...?”
“I finally got my cock into a girl this hot and you want me to pull out right away? That makes no sense.”
Namely: a beastperson in heat had more than twice the sex drive of an ordinary futanari. Considering that most futanari were seized by powerful sexual urges at least once a day, no further explanation was needed for just how intense a heat cycle could get.
And during heat, it went beyond “I want to feel good” and edged right into “I want to make pups.”
“Unnie, won’t you have my baby?”
“Ughk... W-what are you even... We only met today...?”
“So what? Tons of couples these days get pregnant on the first meeting. Ever heard of ‘pregnant first, date later’?”
“Uweh...?”
The Luna who currently had her cock inside her wanted to impregnate Rhea. The reason she wasn’t just thrashing her hips and dumping load after load without a second thought was simple:
“The boss is your master, right? Let’s ask her to unlock the pregnancy restriction. Hm? I’ll treat you so good, Unnie.”
—because it was public knowledge that succubi constrained pregnancy with a womb tattoo. Since heat-relief agents were usually succubi, beastpeople knew that fact especially well.
“Hngh... Y-you can’t just say something like that out of nowhere...”
Rhea could only turn her head away, trapped between options. In her entire life she had never once received a confession from a woman. And now, after becoming a futanari succubus, she was getting one with a cock still buried inside her? She never imagined she would hear the legendary “have my child” line from a customer she had just met.
“Don’t you think our baby would be super cute? If it looks like you, I’ll spoil it every single day.”
She hadn’t even agreed yet and Luna’s fantasies were already running wild.
“I wanna fuck you while your belly’s big, and if your milk comes in I wanna suck every last drop...”
“Y-you just want to have sex...!”
“How am I supposed to help it when you’re this hot? If I don’t knock you up today, someone else is definitely gonna snatch you away.”
They were fantasies, sure—but if you stopped and thought about it, none of them were actually impossible. By the time Luna was rattling off baby names and even planning for grandchildren—
Creak—
The trial-room door opened.
“Guest? What exactly did I just hear?”
Lilith had come in person instead of speaking through the speakers. Rhea’s heart lurched with dread.
I-is she actually going to give permission for pregnancy...?
Otherwise there was no reason for her to walk in herself, right? She had somehow managed to accept a cock skewering her womb, but pregnancy was something she had never even considered...!
“Ah, Boss! Can I take Rhea Unnie home with me? I’m confident we can live happily ever after after she has, like, twenty babies!”
“T-twenty...?”
Even if she gave birth as fast as possible, that would mean nearly twenty years of continuous pregnancy, wouldn’t it? The concrete horror of it made her ass tremble.
“Guest. Before Rhea is an employee of our Bellaros, she is my covenant familiar.”
“Yes! I know, so if you’d just unlock the pregnancy—”
“Hngh. You’re not very good at listening, are you?”
Lilith’s voice turned ice-cold. Only then did Luna notice that the usual business smile was gone and that the other woman was stone-faced.
Squeeze!
Lilith seized the frantically wagging dog tail, and Luna’s back snapped straight.
“Kyaah?!”
“You dare, bitch? I cut you some slack because you’re in heat, and now you think you can cross the line?”
“M-Master...?!”
Rhea’s eyes went round. She was more shocked than when Luna had asked her to get pregnant. Lilith, who usually went crazy over customers, was using language that harsh?
Thump, thump, thump...!
Her womb began to race like a pulse. It had recognized before her mind did that Lilith was protecting her, and it was thrilled and fluttering with emotion.
“Guest. Normally, if you don’t buy adult toys, you don’t even get the chance to put your cock in our Rhea. Opportunities for bareback creampies are almost nonexistent. Got it?”
“Arf—arf...”
It was a bizarre sight. Rhea was skewered on Luna’s cock and panting for breath, while Luna was whining with her tail held by Lilith.
“I came in here myself so that if you spout any more nonsense I can throw you out on the spot.”
“Whine... I’m sorry. When I’m in heat I just can’t control myself...”
“Yes. I understand that perfectly well, which is why I’m letting it go this far.”
Lilith released Luna’s tail, crossed her arms, and leaned back against the wall.
“From now until you cum, I’ll be watching. Keep having sex.”
“Hehe... Sorry. And thank youuu.”
“What?! M-Master, weren’t you here to stop this?”
Luna looked relieved; Rhea was horrified. Even staying completely still felt like her pussy was going to burst, and now they were supposed to continue?
“I told you I came to give a warning. It would be too cold-hearted to order a cock that’s already inside to pull out.”
“N-no...”
“Instead, Master will be watching, so don’t get nervous and just squeeze that pussy hard. If it looks like something’s about to go wrong, I’ll step in anytime.”
In other words: as long as it didn’t escalate into a real disaster, she would turn a blind eye no matter what happened. Rhea’s pupils shook as if an earthquake had hit.
“Sorry, Unnie. When I get excited my brain just stops working... I’ll make you feel good, so please forget it.”
“Haguuuuuuh?!”
Luna began swinging her hips in earnest. Every time the glans scraped the vaginal walls on the way out, it dragged across her G-spot and made her spill sticky love juices. On the way back in it crushed her prostate on the path to jabbing her cervical opening, forcing spurts of semen out of her.
Slap! Splat!
With every thrust Luna’s balls smacked against Rhea’s pussy. Because she was so thoroughly soaked, the wet sounds rang out especially loud.
“Ah—hngh... uhk, ughk...! Kh—!”
“Haa... ha... You’re clinging way too tight, Unnie.”
Rhea clung desperately to Luna’s back and was shaken like a living onahole. She had no choice—if she didn’t hold onto something she was sure she would lose consciousness.
“Rhea. Now that you’re a succubus, you shouldn’t just leave everything to your partner. Do something. At least kiss her.”
In front of her, Luna was pulverizing her womb. From behind, Lilith’s coaching drilled into her ears. She was already past the point of coherent thought, so—
“Chuu... mmph... chuuup...!”
—she simply kissed Luna the way Lilith ordered, urging her toward orgasm.
“Nnh... Unnie, I’m about to cum...!”
Luna grabbed Rhea’s hips and hoisted her bodily onto the bed.
“Heh—heh...?”
Why move to the bed instead of just finishing right there? The question was answered at once by Lilith, who had been watching from the side.
“Rhea. Have you ever seen videos of dogs mating?”
“Y-yes...? I have...”
She hadn’t looked them up on purpose. She had just happened to see dogs mating by the roadside once. Why bring that up all of a sudden?
“Then you know how dogs ejaculate too, right?”
“Uh... uhhh...?”
“Fufu, so you have seen it. Dog beastpeople cum in a similar way.”
If memory served, dogs finished while facing away from each other.
“First, press your butts tightly together.”
Slap!
“Ookh...!”
Luna, now on all fours like a dog, shoved her hips flush. In that strange position the cock sank deep into the womb.
“Then swell the cock up nice and fat so it can’t slip out of the vagina.”
“Urghk...?!”
“This is called knotting, or mating coupling... though you probably don’t need the technical term.”
The moment Lilith finished speaking, Luna’s glans ballooned and forcibly pried open the cervical entrance.
“And then they ejaculate for a long, long time. Anywhere from ten minutes on the short end to thirty on the long.”
Brrrrrrr! Brrrrrrrrrrr!
Semen began cascading into the womb like a waterfall.
It didn’t take long for her belly to swell tight as a balloon. The terrifying part was that even after that, the ejaculation showed no sign of stopping.
“Hehe... Feels good, doesn’t it, Unnie?”
“Nngh-hhaa...!”
“Succubi really love it when their wombs get all stuffed and round.”
She couldn’t deny it. Her womb, filled with beastperson seed, was screaming with joy in real time. And the swollen glans still locked inside her uterus—
“Mating coupling is the besttt...!”
—delivered such supreme pleasure that the vulgar words spilled out of her mouth unbidden.
“Haa... Well, as long as our Rhea is feeling good...”
Lilith gently stroked the twitching Rhea through the endless climax. A familiar’s joy was, after all, a master’s joy as well. Still—
“She’s not even fully recovered yet. Taking this much semen means she’ll have to wear another wet-dream condom again.”
Imagining Rhea once more wearing a condom and dribbling semen was both adorable and a little pitiful. Of course, to an Alpha Futanari, that sort of thing was practically an invitation to sadism.
“Maybe we’ll worry about how hard it is later? Chuuup...”
“Nnghch...! Chuurp...”
She stole the lips of the Rhea who was still being filled. Through her pussy she received Luna’s semen; through her mouth she received Lilith’s saliva.
I-I’m going to fly away...
Rhea lost consciousness in the middle of the pleasure.