If You Behave, I'll Give You My Virginity
Squish, squish. I was being mercilessly manhandled by Topaz — reduced to a tentacle-shaped stress toy while she worked off her mood — when Doctor wandered over as if she'd finished her examination.
"Tentacle, what did you make?"
She snatched me out of Topaz's arms with a faintly agitated look, as if she were interrogating me, and started shaking me wildly.
"H-hey, give him back~!"
Urrrgh...
My neck was being squeezed, but a body structure nothing like a human's meant I wasn't actually choking. And Doctor was quite the beauty herself, so being throttled by a gorgeous woman wasn't half bad.
"Hey — this semen. How the hell did you make this?!"
Haah♥ It's still gushing out even as we speak...
Dangling from Doctor's grip, I kept brushing against her body as she shook me. Unlike Topaz's firm, springy, well-trained physique, Doctor's flesh had that soft, yielding quality of a woman who'd never set foot in a gym — a modest layer of well-marbled fat that felt like it had been put there specifically to be played with.
Well, well. Doctor's packing quite the...
An unexpected bonus. I probably couldn't do this and that to Doctor, but men go especially crazy over a new woman — a new beauty — don't they? For a tentacle like me, that went without saying. And the fact that she had that ice-queen look — the kind of woman who'd marry a man she genuinely loved and still keep physical contact to an absolute minimum — only made it more exciting.
And then, for one reason or another, she'd end up tasting some hung breeding-kink guy or a well-endowed Black dude's cock and start moaning, Heeung, more diiick, please~ — now that would be a delicious plot development.
"Hey. Just cum for me first."
"Eh?"
...?
I was still riding that fantasy when I heard something I couldn't believe. But Doctor's expression was dead serious. I hadn't misheard her while daydreaming.
"Come on. Cum in here."
She shoved a beaker at me as if I could just piss semen on command. Faced with that shameless request, I decided to counterattack.
I slid a tentacle over and gave her breast a careful squeeze♥
"Hngh?! What is this...?"
Hah?!
The moment I groped her, Doctor glared at me with a razor-sharp look. I immediately tucked my tail and yanked the tentacle back. That look of contempt brought back PTSD from my school days. Ever since becoming a tentacle, I'd only ever gotten pampered by Topaz, so the psychological damage hit even harder.
Waaah~ Mama...
I looked to Topaz for help, but she was just staring at Doctor with a broken, blue-screen-of-death expression.
"Tsk. So if I want your semen, I've gotta give you jack-off material. Is that it?"
I carefully nodded.
She let out a long sigh, tapped at a holographic panel, and the breasts that had been wrapped in her bodysuit suddenly bounced free♥, baring her bare flesh.
"Hah. I'm old enough people are starting to call me ma'am... Any woman will do, is that it? Horny little thing. You really are a tentacle."
Contrary to her words, her breasts were still plenty perky, jiggling♥ and jiggling♥ as if to make their own argument. Her areolae were a delicious-looking pink, so I dove in and started sucking like a man who'd just been served a feast.
Shluuuurp!
"Hngh. You're sucking harder than I expected..."
Ever since becoming a tentacle, I'd only ever sucked breasts that actually produced milk, so something felt missing. I carefully slipped out a needle capable of injecting a lactation inducer.
"...Haa. Fine. I already figured this was coming the moment I decided to help Topaz... Go on. Do whatever you want."
Far from scolding me for the needle I'd casually produced, Doctor actually pushed her chest forward as if telling me to go ahead. I didn't refuse. I drove the needle into her nipple.
"Nngh♥ I thought it'd hurt... but it feels weirdly good...♥"
A beauty's face melting into pleasure is something I never get tired of watching. And when that beauty is normally a stone-faced ice queen coming undone? That multiplies the arousal several times over. There's something about it that satisfies a male's filthy desire to conquer a superior female through pleasure.
Gulp, gulp.

"Hngh♥ How long are you just gonna drink milk... Hurry up and cum...!♥"
Doctor, who'd been losing herself in the pleasure of me sucking her milk, seemed to snap back to her senses. She flinched, then started awkwardly stroking my cock with her hand. The clumsy handjob didn't feel that great physically, but the very awkwardness of her touch screamed this woman is a virgin! — and that mental satisfaction was enormous.
I considered enjoying it a little longer, but Topaz staring blankly from the corner was getting to me, so I decided to just finish fast. Judging by what Doctor had said, my semen was going to have all kinds of uses. This wouldn't be my only chance, so I'd save the rest for next time.
Spurt, spurt!
"Ugh. The volume... and the smell is insanely thick."
"Hnnngh...♥"
The instant I came, Topaz — who'd been standing there like a statue frozen for a hundred days — let out a feverish sigh and crumpled to the floor. A puddle began spreading beneath her, as if she'd wet herself.
"Haaah, my brain's melting...♥ This is even worse than having you stolen by some Witch...♥ Hnnnngh...♥"
"Your master's starting to give up on being human, huh?"
Read the room...
I'd thought she was frozen from shock, but the direction of that shock was several million light-years from what I'd expected.
"If she's like that, I don't even need to feel guilty... Perfect. I needed a lot of experimental samples anyway. Now I can just wring you dry without worrying about anyone's feelings♥"
I trembled.
In front of me, a clear-eyed lunatic named Topaz. Behind me, a mad scientist named Doctor... Way too scary! I'd become a dried fish!
"Topaz. Snap out of it."
"Hnnngh♥ Okay."
She stood up with a reluctant sigh and gave a little stamp of her foot. The puddle of love juices vanished without a trace.
"I can't send you home just yet, but it won't take long."
"Hehe. I get to spend the whole day with Unni for the first time in ages."
Topaz beamed and threw her arms around Doctor. Since I was still in Doctor's arms, I ended up sandwiched between their breasts. A tentacle sandwich.
This is what paradise looks like...
Buried in the sweet scent of women's skin and all that softness, I was savoring pure bliss when Doctor patted Topaz's head once and peeled her off.
"That's tempting too, but thanks to your tentacle husband, we've got a way to treat the erosion. We've got to move fast."
Doctor turned the beaker of semen this way and that with genuine interest as she continued.
"They say the world gets changed by crazy people, but I never thought that meant you. Thanks to you, we've got a way forward! Thank you, Topaz!"
Doctor was smiling with a brightness I never would have imagined from her usual ice-cold demeanor — except she was holding a beaker of my semen, which kind of ruined the moment.
"Unniiii~"
Topaz looked so moved she was about to cry — until Doctor's next words dried those tears right up.
"Ah, but if this fails, mind if I borrow the tentacle the same way we used him on the Witch today? Sorry."
"Eh?"
Eh.
Honestly, I'd had no choice this time, but other Witches didn't really do it for me. Sure, this was an eroge world, so they'd all be beauties — but that greasy, grimy feeling they gave off, probably from the Black Mana, was something I might crave on a rare off day and absolutely did not want to experience otherwise. This Witch had been a virgin, which was lucky... but the mere thought of having to crawl into some used-up, slutty, non-virgin pussy gave me goosebumps.
Tsk. That's a pretty strong hostage.
Making an offer I couldn't refuse, Doctor held out a test tube containing a fertilized egg as well.
"I don't know how much of this you'll understand, but a normal tentacle finishes growing, combines the DNA of the ova it's eaten to make eggs, lays those eggs, and then sprays semen over them for external fertilization."
Doctor manipulated the interface and pulled up a magnified image. It was the kind of picture I'd paid the most attention to in sex-ed class back in school. Aside from the conspicuous black nucleus in the center, it looked just like a fertilized ovum undergoing cell division.
"I ran a tissue analysis just in case, and it's completely that Witch's ovum. The semen's morphology is almost identical to a human's, too. Meaning, unlike regular tentacles, you don't lay eggs. You can impregnate someone the same way a human does — just creampie them when they're ovulating."
"!"
!
Topaz and I both flinched at Doctor's explanation and looked at each other as if we'd planned it.
"Normally a tentacle's lifespan is pretty much over once it finishes laying eggs, so the fact that I have no idea how long you'll live is... well, that's a bit of a problem."
"Huuuh?!"
!!
We were still reeling from this barrage of shocking revelations when an even bigger bomb dropped on us.
"Huuuuh?!"
Ooooh?!
Doctor patted her own belly with the casual air of someone lending out a household item, and I vulgarly went bukkake on the spot.
"Nngh! You mad scientist!!"
"Yeah, yeah. Says the crazy tentacle-lover."
"Grrr!!"
"What's the problem? A minute ago you were getting off like a loser."
"Th-that's... but pregnancy is..."
Seeing Topaz so flustered, Doctor stopped teasing her with a wry smile, stroked her hair, and whispered quietly into her ear.
"If I get pregnant and give birth too, that's a double-tentacle event, you know?"
"...!! Fine. I'll recognize even Unni as a womb-mate."
"That's completely insane. Seriously."
Doctor let out a hollow laugh that was half disbelief, half amusement at Topaz's instant about-face.
"Anyway, about this clump of Black Mana — for some reason, the cell division has stopped. The cells themselves aren't dead, though. Any ideas?"
Doctor showed me the screen as she asked. I was racking my brain for something to say when a clever idea struck me. I pointed and jabbed and poked toward the Witch, who'd been forgotten and was still dangling from the box, signaling that we should put it back inside her.
"Hmm... but the Black Mana... Still, not a bad idea... Think it'll implant on its own?"
I clapped two tentacles together and pulled them apart repeatedly — dock, dock! — trying to convey that if I connected to the tentacle I'd planted in the Witch's body and issued commands, it should be fine.
"Ohh~ You already parasitized her in that short a time? Her immune system is wrecked from the drugs, sure, but that's still pretty clever."
Doctor understood me with uncanny accuracy and approved the plan. Having to go back in was a little depressing, but it was the virgin pussy I'd popped myself, so I decided to suck it up.
I'll be right back!
I took the fertilized egg from the test tube and burrowed back into the Witch's womb.
Kyun♥ Kyun-kyun-kyuuung~♥
I ignored the womb that was greeting me with violent enthusiasm — how long had I even been gone? — pulled out the fertilized egg, and tried to connect it to the tentacle roots I'd planted earlier.
Kyun?! Kyuuuuuuung♥
Whether the womb instinctively sensed that a fertilized egg had arrived, it clenched down for the first time with a tightness that rivaled Topaz.
Kroooh?! What is this grip?!
The completely unexpected tightness was a new stimulus that nearly made my eyes roll back. A milf womb squeezing down like it was pretending to be younger than it was... Unexpectedly, this might not be so bad.
I acknowledge you... You're hot!
Kyun♥
With that acknowledgment, I successfully connected the fertilized egg to the Witch's body.
"Nngh...♥ Th-this feeling...! The Black Mana...!! The power That Person gave me is back...!!"
"Unni! The Witch is..!!"
"Wait. It's fine. There's nothing in there except what's inside the fertilized egg the tentacle made."
"Nnnngh...!!"
Apparently, connecting the fertilized egg had also reconnected the Black Mana, and the Witch had woken up from the sensation.
Shut it!!!
"Hngh?!"
A woman... talking back?!
"W-what?! What did I even do?! No, more importantly, what is this!! My head is ringing...!!"
Give up.
My thoughts must have leaked into her. The Witch started spewing the memes I'd been thinking, like she'd been mentally contaminated.
"Nnnngh?! My head!!! My heeead!!!"
"Hey!! Tentacle!! Stop it!! She's got a Curse Seal on her — if you push her any further, her head'll explode and she'll die!!!"
I'd been about to stop anyway, but my influence over the Witch's body was stronger than I'd expected. It wouldn't die down easily.
Now that it's come to this, all or nothing, 0.5-second—!!!
I didn't even get that far. The Curse Seal itself was black magic powered by Black Mana, and it was drawing power from the tentacle connected to the fertilized egg — so I just cut the supply.
"Hnnnngh...."
The Witch's vacant expression looked like her brain had actually fried. I figured I should do something, so I replayed the flow of the Curse Seal I'd seen earlier and tried overwriting it with my own mana. Normally the Curse Seal would have resisted being overwritten, but I'd completely cut off the Black Mana that was its power source. Tracing over it was as easy as a coloring-book exercise.
Black Mana supply severed. The Mental Restraint has been traced over and rewritten with Tentacle's mana.
"-Ah!...Ah!! No...ah! Th-That Person...aaah!! Ah!"
"Eww... that's kinda gross."
Topaz, who'd only ever called me cute until now, was making a face of pure disgust. That stung a little. I vowed to crank her sensitivity up about five times next time as revenge, and kept overwriting the Curse Seal.
"Ah!..Tentacle...aaah!! M-Mas..ter? Ah!"