This is bad… it feels way better than I imagined.
So… so incredibly good.
The slick, pulsating heat of her pussy walls massaged every sensitive inch of my cock, the tight ring of her entrance squeezing the base while her cervix kissed the tip with every tiny movement.
It was like her insides were alive, sucking and milking me with wet, fleshy spasms that sent electric jolts of pleasure up my spine.
Even though I thrust in hard and fast, the moment felt like slow motion.
I could clearly feel every bit of her inner walls wriggling, squirming, and coiling tightly around my entire cock.
And it wasn’t just that moment— it was still happening.
Soft, warm flesh walls wrapping around me, squeezing and milking.
It didn’t hurt at all; instead it gave a comforting feeling of being enveloped.
The overwhelming pleasure and excitement on top of that made my head feel like it was going crazy.
Just from entering, the pleasure was unlike anything I had ever felt… my body was trembling in small spasms.
I seriously wondered if I might have a panic attack or hyperventilate, even though I had no such conditions.
It was genuinely scary, so I took several deep breaths to calm down.
But when I did, the scent of her sweat and body… and an even stronger, rich feminine aroma—probably intensified by the penetration—flooded into my nose.
After breathing deeply a few more times, the near-panic subsided.
But in exchange, the intoxicating scent and pheromones of my sister made my desire completely uncontrollable.
Her pussy had started getting wet inside, perhaps reflexively from having a cock buried in it, so there was no need to hold back anymore.
I slowly began moving my hips.
…No, I tried to move, but couldn’t.
The moment I tried, I couldn’t hold back and exploded inside her.
My cock throbbed violently, swelling even thicker as powerful jets of hot cum blasted straight against her cervix, flooding her womb with thick, ropey spurts that filled every crevice.
“U… uaaahhh…!!” Desperately suppressing my voice, I was already cumming deep inside my sister’s pussy… pathetically fast.
The torrent of desire I had been holding back since daytime erupted after barely a single thrust, without even one full stroke.
Pulse after pulse, thick cum surged through my cock and flooded into her.
My throbbing meat rod, buried inside her fleshy tunnel, pumped wave after wave of white, sticky fluid that spread inside her, mixing with her sweat and love juices.
I could feel her pussy contracting around me in response, as if greedily drinking every drop.
It was so sudden that I didn’t even have time to think something like “I’ve finally become an adult…” But it still wasn’t nearly enough.
Cumming once did nothing to satisfy me.
My cock remained rock-hard inside her.
“Haa… haa… the clock… okay, plenty of time left…” Breathing heavily, I checked the clock on the wall.
It was 12:02 a.m.
It was late, but still completely fine.
Lately I often stayed up until 1 or 2 a.m., yet still managed to wake up for school.
Plus, we were right in the middle of a long holiday weekend… tomorrow—no, today—was Sunday.
No school, no club practice, and sleeping in late would be no problem.
If I wanted, I could stay up all night fucking her until right before she woke up.
It would definitely be worth it—an amazing time.
My cock was still hard as steel, my balls felt like they were churning with more cum, urging me to move faster.
Unable to resist that urge, I started thrusting.
Since I had already cum once, I didn’t blow immediately this time… but the way her inner walls kept coiling and squeezing showed no signs of weakening… it quickly robbed me of any composure.
Nothing but moving my hips mattered anymore… and I willingly surrendered to my desires.
Each deep thrust made her pussy squelch wetly around me, her juices coating my shaft and balls as I pounded harder, feeling her cervix yield and kiss the head of my cock with every slam.
I moved slowly but with deep, powerful strokes, pulling my rigid cock almost all the way out—her clinging flesh reluctant to let go, stretching and sucking on my length—then slamming back in to the hilt, burying myself in that warm, welcoming heat and grinding against her deepest parts.
My sister’s pussy seemed delighted to finally be used for its true purpose, sucking and gripping eagerly even though the cock inside her belonged to her blood-related little brother.
The slick, velvety friction was mind-melting, every ridge inside her dragging along my sensitive underside and making my toes curl.
With each thrust, more love juices flowed out, making everything slicker.
The slight resistance from earlier disappeared almost instantly… yet the increased slipperiness somehow made the “coiling and clinging” sensation even stronger.
My cock, savoring every bit of it, grew even bigger and harder than before.
Though I couldn’t see it, I could feel the head pressing and grinding against something deep inside with every thrust.
The dead end inside her vagina… that must be her cervix.
The entrance to her womb… the “baby room” that only women have.
Just thinking about it made a burning heat surge inside me.
I ground against it firmly, feeling it soften and open slightly under the relentless pressure of my cockhead.
I knew the pill meant she wouldn’t get pregnant, and I didn’t want that anyway.
But my primal instincts were screaming.
Impregnate this female.