It was only four months ago that I first became interested in SM, on the day Mei, Chifumi-kun, and I had our first threesome. I could never forget the ecstatic expression on Mei's face as she was with Chifumi-kun. Mei and I had lesbian sex many times, but I have no memory of ever seeing her look so undone. She was at her most melted when Chifumi-kun and I pleasured her together. Sandwiched between the two of us, helpless, toyed with and pleasured at will by four arms and two mouths, she wore a look of pure bliss, completely intoxicated by pleasure. —I wanted to have a face like that, too.
—But I couldn't.
Back then, they both pleasured me as well, but I couldn't achieve that experience of being completely intoxicated by pleasure. I was helpless, yes, but something was missing. To be honest, I wanted to be bound more tightly, to be treated like a toy. How good would that feel? It was inevitable that I would find my way to SM. In fact, after that threesome, I had already picked up a paperback by Oniroku Dan at a bookstore I stopped at on the way home.
—This is what will satisfy my M-desires!
From then on, I became a captive of SM, especially rope bondage, and threw myself into it. I devoured novels and web articles, watched AVs from Cinegic and Bamuda, and fantasized, putting myself in the actresses' shoes. And then came the second threesome. Mei, bound with her hands behind her back and her legs tied just as I was now, exposed and defenseless. Candle play followed by a threesome; Mei seemed to enjoy it even more than the last time. It was then that I became certain. To reach the pinnacle of pleasure, there was no other way but rope bondage…
And now, my dream has come true. It feels so much better than I ever imagined. Chifumi-kun was incredible, too. Teasing me as I was tied up, delaying my orgasm until my frustration was at its peak, then unleashing a demonic rush to make me come. It was the first time I'd ever experienced a pleasure so intense it made my consciousness fade.
"Ah… thank… thank you… Chifumi-kun… That felt… so, so good…"
"...What are you talking about? We're not done yet!"
"Eh!?"
Without even glancing at my bewildered face, Chifumi-kun tossed those words over his shoulder and got off the bed. I couldn't move, so I couldn't see, but I heard a clattering sound from the side.
Clang!
"Ow!"
Chifumi-kun's voice suddenly shot into my ear. He must have bumped into something. He returned to the bed, rubbing his lower back. I noticed several items had been placed beside me. Then, he attached one of them to my nipple.
Whirrrrrrrrrrrrr.
"Auh! W-What is this!?"
"An electric nipple sucker. Now your nipples won't be lonely."
With that, he thrust a purple rod in front of my face, a sadistic smile on his lips.
"And the Uncle Vibrator! I'm going to plug up your naughty hole with this!"
"Eh, ah, wai-wait a… augh!!"
Bzzzzzzzzzz!
"The finishing blow is the electric massager! I'm going to assault your g-spot from the inside and out with this!"
Vrrrrrn!!!
"Ahhh—♡ Ahhh—♡ Ngh-ah-ah-ah-ah-ahhh♡♡♡"
I can't even form words! It feels good, too good!! I've never felt anything like this!! Ahh, it's coming♡♡ Something amazing… from deep inside, deep inside, I'm gonna cuuuum!!!
"I'm cuuummiiiinnnggg♡♡♡♡"
Twitch!! Twitch!! Twitch!!
With so many of my erogenous zones being stimulated at once, I reached a powerful climax. But… Chifumi-kun still didn't let up. In fact, he now started sucking my clitoris.
Schluuurp! Schlurp! Chuchuchuchuuu~! Schluuurp schluuurp! Slurrrrrrrrrrrp~!
"—Hh! Ah, it's coming, coming♡♡ Nngh… Hh-uungh…♡♡ Nnghooooh♡♡ G-Gonna… die, gonna diiie…♡ Ah, ah, deep, deeep, ngh♡♡ It's here… Hh♡♡ Ah, ah, it's here, it's here♡ Fuh, uungh, nh, ah♡♡ Coming, coming, ah, ahhh♡♡ Ah…♡♡ A-Again…♡—~~Hhh♡♡♡ Huuhh♡ Huuhh♡♡ My head's♡ going♡ craaazyyy♡♡ Ah♡ Ah♡ On its oooown♡♡"
I had already come too much, yet an even more intense pleasure assaulted me. But I couldn't resist. I felt like I was going crazy. If this pleasure continued, I would break.
"Stahp, pwease stahp~~♡♡ I'm gonna bweak♡♡ I'm gonna bweeeak♡♡♡♡"
"Not yet!!"
"Ahiiiiiiiiiiiiiiihhhhhh—♡♡♡♡"
N-No, I have to stop this, or I'm going to come to death! I have to say the safe word… Wait? What was the word again? Oh, right, on the sideboard…
I turned my head to the side. And despaired.
I-It's fallen over… The bottle… why? …I can't read the label!!
Chifumi-kun must have bumped into the sideboard! The bottle of energy drink with the safe word on it had fallen over. How unlucky can I be? Not only did I forget the safe word, but the bottle with the answer written on it is tipped over… God… is this my punishment for being a sinner who pursued pleasure even to the point of using my own sister…?
Bzzzzzzzzzzz! Vrrrrrrrrrrrrrrn!!!
Schlup! Schlup! Schlupapap! Schlurp! Schluluuurp! Slurrrrrrrrrp~!
"Nnhoh-oohh♡ Ooooh♡ Oooohhh♡♡ Coming♡ Coming♡ Coming♡♡ No♡ Noooo♡♡ Oh-ooh-oohhh♡♡♡ Hah, ahh, oh…♡♡ Oh, hih♡ Hiiiiihh…♡♡ Nngh… Hh-uungh…♡♡ Having an acmeee♡♡ Nngh… Hh-uungh…♡♡ It's hoooot…♡♡ S-Sorry♡ I'm so sowwy♡♡ Nn… Hh, ghuu…♡♡ Aghi♡ Hii♡ Hiiiiihh♡♡—Hh, I'm cuuummiiiinngg…♡♡♡"
SQUIIIIIRRRT!!
"Ah♡… Ahi♡♡… Oh, hhoo… Hh."
Letting out a huge squirt, I reached a climax unlike any I'd ever had before. It was like an earthquake erupted deep inside my body, a raging wave surging through me. I wonder if this is what they call an internal orgasm… The quality is completely different from a clitoral orgasm. My mouth hung open slackly as I stared at the ceiling in a daze.
"...Ena-san, should we keep going? When are you going to say 'limpy-wimpy-plunger'?"
Hearing those words, I desperately moved my completely limp tongue and barely managed to murmur.
"Li… limpy… wimpy… plunger…"
Thud!
The moment I finished speaking, my consciousness faded, and I journeyed to a distant horizon—.
—Hah!!
"Ah, you're awake. Are you okay, Ena-san?"
When I opened my eyes, Chifumi-kun was looking down at me with a worried expression.
"I-I'm fine… How long was I out?"
"About twenty minutes. You looked like you were in pain, so I untied all the ropes."
It's true! My arms and legs can move! Freedom is wonderful!
"S-Sorry, Chifumi-kun… I didn't think I'd pass out…"
"No, I'm the one who's sorry. I think I might have gone a little too far…"
"It's okay… Come here…"
I spread my arms open for him. Even though twenty minutes had passed, my pussy was still throbbing.
"Eh… Are you sure you're okay?"
"It's fine… Just insert it…"
I placed a hand on Chifumi-kun's lower abdomen; his cock was hot and hard. For him, who could ejaculate multiple times in a single insemination session, twenty minutes was more than enough of an interval.
Sluuurp.
My pussy accepted Chifumi-kun with surprising smoothness. Every touch on my body sent a jolt of pleasure like an electric current through me. It was as if my entire body had become an erogenous zone. He lay on top of me and began to move his hips slowly. His thrusts were surprisingly gentle, as if he were being considerate of me after I'd fainted from the excessive stimulation. Normally, I would have found it unsatisfying, but right now, this was just right.
Squelch, squelch, squelch, squelch.
"Ah♡ Haa…♡ Nnu♡ Haah…♡"
I surrendered myself to the pleasure he gave me with his leisurely rhythm. He matched his thrusts to my breathing. His consideration made me happy. We continued to rub our bodies against each other like that for a while until…
Ah… It's coming.
Feeling the premonition of an orgasm gradually welling up, I shivered and wrapped my legs around his waist.
"Chifumi-kun… I think I'm going to come again… so… come with me…"
Those words were the signal, and his thrusts instantly accelerated. The sound of his pubic bone slapping against my ass echoed through the room. Slap, slap, slap!
It's here! The second one! My second internal orgasm!
"Nngh-ah♡ Ah♡ Ah-ah-ah-ah-ah♡♡♡ Coming♡♡ I'm coming again♡♡♡"
"Ena-san! I'm about to come, too!!"
"Come♡♡ Come inside me♡♡♡ Give me lots and lots of your sperm♡♡♡"
"Khh!!"
Spurt! Splurt! Splurrrrr—!! Spurt, spurt, spurt!!
"Ah-ah-ah-ah-ah-ahhh~~♡♡♡♡ Coming, coming, coming♡ I'm cuuummiiiinnnggg♡♡♡♡"
The sensation of his sperm being poured into me at the same time as my internal orgasm was beyond words. Each time his cock twitched and pulsed inside me, the vibrations were transmitted directly to my uterus.
Amazing… So this is how good… sex can be…
Savoring the bliss that enveloped my entire body, I pulled him closer and begged for a kiss.
"Mwah, mchuu… Nnh, haa, Chifumi-kun… thank you…"
"...I'm happy that I could please you, Ena-san."
We pulled our lips apart, looked at each other, and smiled.
Even after that, we continued to enjoy new kinds of SM play, our bodies joined until we were completely exhausted.
I am Minazuki Ena. I became a Genius Gene Recipient to have a child with my sister, the most important person in the world to me. My sister is pregnant now. And once I get pregnant, our plan will be complete. But I have awakened. I have reached a new frontier at the end of my pursuit of pleasure.
Even if I get pregnant, I want to have sex with Chifumi-kun again after I give birth. And I want my sister to experience the climax I just tasted. When I get home, I'll tell Mei about my new plan. I'm sure she'll agree. We're going to make a big family.