My Stepsister’s Forbidden Exploration

As the SUV drove through the night, Mike and I found ourselves in the cramped space behind the third seat, pillows and a blanket pressed tightly around us. We had initially been tickling each other, but things took a turn when he tried to win by tickling my budding breasts. I smacked him, but he wouldn’t stop. I retaliated by gently grabbing his crotch, and to my surprise, he didn’t make a sound.

I held the warm lump inside his baggy shorts, feeling a mix of mortification and excitement. I quickly let go, covering my mouth in horror, but Mike’s trademark grin soon put me at ease. He kissed me on the forehead, and we lay quietly, gazing into each other’s eyes.

As if reading my mind, Mike’s hand guided mine back to his crotch. I couldn’t resist, wrapping my fingers around the warm bulge between his legs. I felt a hardness down there, pressing warmly against my wrist. I began to pant softly with lust, my heart racing with excitement.

Mike’s fingers soon dove lower, delicately exploring my pubescent vulva. His tentative movements made it all the more pleasurable, and I felt like I was in heaven. I continued to fondle him, and he awkwardly massaged my dripping young pussy. His erect penis seemed to be about three inches long, and his scrotum was the size of a golf ball.

We gasped and panted with lust, trying to be as still and silent as possible. Mike’s hand left my crotch and began to fumble at his waist. He unsnapped his shorts, and I placed my palm against his flat tummy, then snaked it underneath his waistband. I couldn’t feel a hair as my fingers slipped underneath his straining erection, then split around it to feel his tight, spherical ball sack.

Awkwardly, Mike reached underneath my T-shirt and rubbed his palm against my tummy. When I made no objection, he slipped his fingers inside my stretchy shorts and panties, running them down to just above my slit. He seemed fascinated with the downy little hairs I’d recently started to grow.

I wrapped my fingers around his little rod and instinctively began to milk it. I marveled at how soft the skin was and how smoothly it slid over the incredible hardness just beneath. Mike’s fingers suddenly dove lower, scraping deliciously along my throbbing clitoris and quickly finding my wet entrance.

His hand momentarily jerked back in surprise, then eagerly went back for more. Soon, his middle finger was making lewd squishing noises as it explored the tight heat of my dripping virgin hole. I felt like I was in heaven as I began to thrust myself back and forth on his finger. In my excitement, my hand began to pump faster on his little cock until we were both panting as loudly as we dared.

“I’m close,” Mike whispered, his voice barely audible over the music. He tugged gently on the waistband of my shorts, and I quickly slid them and my panties down my legs. I pulled one foot out and carefully placed my upper leg over both of his, being careful not to rock the car.

He slipped his own shorts and underwear down just far enough to reveal his virgin cock and balls, then thrust his pelvis gently forward. I did the same, and soon felt his throbbing little erection lay itself firmly along my slit. We hugged each other tightly and groaned quietly as our genitals touched those of the opposite sex for the very first time.

“Mmmph!” Mike grunted softly as a thin stream of watery fluid squirted from his penis and squished between our tightly pressed tummies. I put my own hand on his soft little bottom and instinctively pulled him even tighter against me.

Mike’s whole body went limp against mine after his ejaculation, and his penis softened between our bodies until it was merely firm. I held him against me, listening to his breathing as it gradually returned to normal. As I wrapped the blanket more tightly around our bodies, I felt renewed hardness in Mike’s penis.

His penis hardened in such a way that the puffy circumcised head pushed itself almost perfectly between my inner labia. A slight shift of my pelvis placed it in perfect alignment, and he became instantly hard the moment he felt the tip of his penis enter my hot, wet tunnel.

I felt no discomfort at all, so I pushed myself onto him. He pushed back, and I felt myself filled almost instantly with his boy meat. The feel of his firm, cool ball sack against my bottom told me he was in all the way.

We jerked with our instinctive urges to thrust, but we knew we had to hold still or risk losing control at the worst possible time. I realized that by slowly moving my vaginal muscles a certain way, I could milk his penis with my pussy. It felt wonderful, and I imagined that I could feel every contour of his probing young penis as my tissues lovingly caressed it.

After a minute or so, I gradually became aware of the road vibrations traveling through his body and causing his penis to quiver delightfully within my vagina. I clamped my outer vaginal muscles tightly against the base of his cock and bent it slightly downward so that I could feel those wonderful vibrations against my engorged clitoris.

It only took a few minutes of that before I felt my own orgasm swelling inside of me. As the feeling grew more intense, I clamped down on his sturdy young cock with all of my might, gritted my teeth, and squeezed my eyes shut in an effort to hold off the explosion for as long as I could.

But it was just too much for an inexperienced little girl to handle, and my loins ignited, sending strong waves of purest ecstasy rippling between my clitoris and nipples. My vagina began to tug fiercely on Mike’s little erection, desperately trying to make him fill me with his immature semen.

Mike gasped and tried to pull out, but I grabbed his bottom and held him tightly inside me. I knew I was still a long way from being able to get pregnant and wanted to feel this special moment as completely as possible. Mike’s penis swelled once more, this time deep inside of me.

“Mmmph!” Mike grunted. Then I felt his penis jump strongly inside of me. A second later, it jumped again. “Mmmm,” he gasped, and his penis began to jerk more quickly. I felt a growing warmth deep inside my vagina, and that set me off again.

I pressed my mouth against his shoulder and squealed quietly against him as my hot little pussy began to spasm around his invading young cock once again. I felt it grow softer each time I squeezed it, but I couldn’t help it. I very much wanted to keep it in there forever but I just couldn’t stop cumming.

After about 10 spasms, I felt his limp little noodle get squeezed out of me with a wet smack. I continued to cum with an empty vagina for a few more spasms, but it wasn’t nearly as satisfying. I gave Mike a grateful squeeze for taking my virginity in such a wonderful way and giving me the two best orgasms of my life by far.