"You mean you two aren't sisters?!"
After the second round, I was left bewildered by this shocking revelation.
"Come on, Chifumin, it's not that surprising!" Mei-san said, seeing the look on my face.
"It's simple—our parents were both single parents who remarried. Pretty common story, right?"
Ah, I see. That does make sense—it's a pretty typical situation.
"So how long have you two been together?"
"I was three and Mei-chan was two, so it's practically like being real sisters. Neither of us even remembers a time before that."
"Yeah, yeah. We didn't even find out we weren't blood-related until middle school. Even then, it was like, 'Oh, okay?'—Mei's still my Onee-chan no matter what."
"So even after learning the truth, your sisterly bond didn't change?"
"Well... there was one thing..."
"The day we found out—I was in high school, Mei-chan was in middle school—was also the first time we... got intimate."
"W-Wait, could you elaborate on that part...?"
"We always took baths together, and that day, while washing each other, Onee-chan suddenly started touching me in weird places..."
"Excuse me? You were the one who started licking my nipple first!"
Ohhh, I see! And then? And then?
"Somehow we ended up kissing, and before we knew it, we were licking each other down there."
Ah, like what I just saw earlier!
"It's kinda funny, honestly. It was both our first kiss, but we got so into it we ended up slobbering all over each other's faces, lol."
"I think hearing we weren't real sisters shook both of us more than we realized. Maybe we did that because we wanted to deepen our bond even more."
"But then it just... clicked. After we moved out and started living together as adults, we kept doing it about once a week."
"Even when we had boyfriends, we never stopped."
"That's probably why neither of us could keep a guy for long. They always cut into 'our time.'"
"We even talked about finding a guy who'd date both of us, but our tastes in men are total opposites."
"Onee-chan likes gentle, indoorsy types, but I prefer loud, sporty guys—so we never found anyone who fit."
"Yeah, that makes sense."
"Hey, why don't you date us, Chifumin? You're more Onee-chan's type, but I wouldn't mind either ♡"
"W-Well, uh—"
"Mei-chan, stop it. You're making Chifumi-kun uncomfortable."
"But come on, isn't this kinda a first? A guy who's done it with both of us?"
"True, but if we achieve our original goal, we won't even need to involve Chifumi-kun."
"Original goal?"
"When we learned about the Genius Gene, we thought—if we both have children by the same man, they'd be real siblings. Then we could be a real family. So we decided we wanted a Genius Gene Child."
...That's... an unusual way of looking at it. You two already seem like real family to me. Sisters, best friends, lovers—your bond is already so deep. Yet you still want more connection... I get that Recipients have their own circumstances, but I never imagined it'd be something like this.
"So, Chifumin, work hard and knock us up, okay? It's about time, don't you think?"
Hearing their erotic stories must've helped, because my lower half was already regaining its vigor.
"My turn to prep you. Onee-chan, wait a sec."
Mei-san straddled me in reverse and started sucking my half-hard cock. Now, right in front of my face, was her pussy. Time for me to get to work!
Schlurp, schlurp, slurp, squish, lick, gulp, licking noises...
The lewd sounds of us pleasuring each other filled the room.
"Mmmph..."
Mei-san let out a sweet moan. My cock was fully ready now. Seizing the moment, Ena-san quickly climbed on top of me and tilted Mei-san's chin up. The tip of my cock was already halfway inside Ena-san.
"C'mon, Mei-chan, stick out your tongue!"
Ena-san slipped her finger into Mei-san's mouth.
"Ghh—!"
Mei-san looked strained but obediently licked Ena-san's finger. Watching them turned me on so much I thrust my hips upward.
"Ahhhhn!!"
"S-Sorry! Did I surprise you?!"
"It's fine! You can move more!"
Then I won't hold back!!
Slap, slap, slap, slap slap slap, squish, slap, slap slap, slap, slap, slap, slap.
Drool spilled from Mei-san's mouth, pooling on my stomach. The two had started deep-kissing again, but I couldn't see—Mei-san's huge ass and pussy blocked my view. I spread her cheeks with both hands and stuck out my tongue. I'd never seen a woman's asshole this close before.
Why?! Why do I suddenly have this overwhelming urge to lick Mei-san's asshole?!
Lick lick, slurp, lick, slobber, nuzzle, lick, gulp gulp...
"W-Wait, Chifumin, not there—it's dirty, stooop!"
Even as she protested, I couldn't stop.
"There's... no part of Mei-chan... that's dirty..."
I expanded my assault—holding her ass with my hands, rubbing her lips with my thumb, licking her perineum, and prodding her asshole with my nose. No one taught me this. But I realized—the nose is the second dick!
"Chifumiiin~! That's—too much~!"
Lost in pleasure, Mei-san twisted her body 180 degrees and shoved her pussy into my face. Now she wanted me to focus on her clit? Got it!
Flick, flick, suck, nibble, lick, slurp, lick lick, suck, lick...
It must've felt too good, because Mei-san collapsed forward, completely blocking my vision.
Slap... slap... slap slap... slap slap slap...
Where was that sound coming from...? Like drumbeats.
"Hey, Onee-chan, stop spanking me!"
"But it's not fair—Mei-chan's the only one feeling good!"
"Too bad! You've got Chifumin inside you!"
"Chifumi-kun's hips stopped moving. Mei-chan, back off for a sec!"
"Fiiine..."
Grudgingly, Mei-san pulled away as Ena-san took her place, rocking her hips while kissing me.
Kiss, slurp, moan, lick, suck, slobber...
Ena-san moved like she was releasing all her pent-up stress. Mei-san watched with a pout, but I didn't miss the way her eyes sparkled or how she licked her lips.
"Onee-chan, let me help~"
"Wha—Mei-chan, what are you—?!"
Mei-san grabbed Ena's hips from behind and started pistoning them up and down at high speed.
Slap slap slap slap slap slap slap slap slap slap slap slap slap slap slap!
"Aah, ah, stop—Mei-chan, if you go that hard, I'll—I can't—!"
"Huh~? What're you talking about~? We're just getting started, lol!"
What kind of monster is this woman?!
"N-No, Mei, stop—if you keep going, I'll cum!!"
"Mei-san! I—I'm gonna cum too!!"
"Then cum together! Here we go—!!"
Slap slap slap slap slap slap slap slap slap slap slap!!!
"Nooo...! More~♡"
"Ahhh—I'm coming!!"
Splurt—!!!
"Kyahahahahahahahahahahaha!"
Ena-san's pale skin flushed pink as her whole body burned hot.
"Haah... haah... haah..."
"Haah... haah... haah..."
"Fufu. You both did great. But we're not done yet."
"Huh?"
"Now it's my turn."
I swear I saw it—the face of a demon on Mei-san's back as she stretched on the bed.