(B/S) Sexperiences with my Step-Sis

When I was a young teen I moved in with my stepsister and stepmom after a messy divorce between my parents. My new sister was the same age as me and has brown hair and brown eyes. As we grew up together more I began to think of her much less as my step sister and more as a close friend.

I grew up more in that house than I had anywhere else, and one of the main ways I grew was through puberty. Without a male figure around in my life I had no one to explain the changes that were happening to me and my school did next to nothing of any use. Through my early teen years I grew rapidly taller and hair started to grow in unusual places. To my surprise my dick started to grow. By the age of 15 it was about 7 inches long, which is the longest it would get.

This period was also a frustrating one, because for all the intriguing changes to my body, I had to live through them while in the same house as my step sister, Harriet. Her changes were also dramatic. She grew curvier, and the healthy amount of sport she did toned her body into any teen’s wet dream. Her tits took a little longer but by the time puberty was finished with her she had the most perfect and round boobs I’d ever seen.

Naturally, for a teen boy, I was getting boners left right and centre and hiding them from my sister became something of an art. I learned to tuck my dick in all sorts of places. Between my legs while sitting, into my waist band while standing, but for all my skill there were times where there was little I could do. One of the earliest incidents I could remember was one Saturday morning when I was watching tv in the living room when my sister came in to retrieve some item of clothing. She bent down to pick it up and her ass cheeks were almost fully visible under the very short shorts she was wearing. Not unexpectedly by cock rocketed to full mast in record time and while I was still gazing at her behind she turned around and saw my erection tenting my pyjamas bottoms.

“Is that for me?” She said with a huge grin across her face. I said nothing and just my cock down and crossed my legs to hide the offending body part. “Nice PJs” she said with a wink, and left the room. She was always making comments like that, and it made me super uncomfortable.

Ordinarily, a boy my age would have been constantly jerking it but in my case I had never been shown how and as I attended a Catholic school we were prohibited from any sexual discussions whatsoever. I could get some relief by lying on my stomach with my prick pointing upward towards my stomach and arching my back rhythmically. It provided me a small amount of stimulation, but the bed covers were not the best material for this and I was always left wanting something more.

My first proper sexual experience was with my sister, although it was unusually late. I had been getting more boners than ever although the embarrassment they caused me was reduced as I had grown comfortable around my sister. It was the middle of the Summer holidays and my sister had had a break up with her boyfriend only a few weeks before and her company had become almost unbearable. My step mum was out and I was in my room reading when my sis strolled in in a very peculiar mood.

She was wearing her dressing gown, the neck of which was low enough to see the top of her cleavage. It was also rather short on the thighs and I could see her beautifully sporty legs. She wandered around my bedroom touching my things and knocking stuff off shelves like a rude cat. She seemed restless and desperate for my attention.

“What are you doing?” I asked.

She gave me the strangest, most intense look. She bit her lip and twirled the rope of her gown around her finger.

“Are you feeling a bit pent up by any chance?” She inquired, “I couldn’t help but noticing how excited you’ve been of late.” Her eyes made it clear what she meant, staring daggers into my crotch.

“Leave me alone, you know I find it difficult around you when you get all flirty with me. I’m your brother.”

“Isn’t that what makes it so exciting?!”

This made me freeze, my dick had grown to full length and the insinuation that my sis wanted me made me extra hard. Her eyes bore into my skull and she bit her lip which did all sorts of funny things to me. Then she opened her dressing gown just enough for me to fully see both of her perfect and symmetrical tits. They seemed to glow they were so heavenly. My dick jerked again in my boxers.

She knelt down in front of me, tits still showing and put both hands on my throbbing cock. Having only a thin layer of clothing between me and my sister was too much and her ministrations didn’t last long before an intensity within me built to overflowing. The sensation swept through my body and I felt muscles tightening and loosening beyond my control. A thick substance issued forth from the tip of my penis and darkened my boxers.

Without knowing my sister had shown me how to get myself off. Over the next few weeks I would daily repeat in a similar fashion the movements she had shown me on my penis until I brought myself to orgasm. They were none of them as intense or exciting as my first time with my sister but this new sensation felt too incredible to stop.

I had become bolder in my attempts to get my sister to do sexual stuff with me and she had seemed more eager. I managed to get a peek at her tits more than once since and twice while she was wearing just her bra and underwear. I mean who needs porn when you have a smoking hot sister on hand. Her actions had been so forward that first time it had also served to bring us closer together in more than a sexual way. We chatted more about all sorts and we would sit closely with each other during nighttime films; one arm draped across the other, legs gently intertwined.

It was on one of these film watching occasions that I had my second sexual experience with my sister. She lay across me and her tits, though barely contained by her thin t-shirt, sat squarely in front of me on my lap. I had a really view down her top and she wasn’t wearing a bra which made the shape of her tits even more obvious. I began to strike the side of one of her boobs through her t-shirt. She did not react. I grew more bold and put my hand around her boob, gently cupping, feeling the weight of it. Still she did not move a muscle, but continued to watch the TV. I noticed that her nipples had hardened slightly so I began to slowly massage them through the fabric. This elicited a small response; her breathing became sharper and she closed her eyes. These small noises spurred me on and with growing confidence I lifted her shirt enough to get a hand under and feel the smooth soft skin of her boobs.

This, we both enjoyed a lot, and though a word wasn’t spoken between us, we could read from one another than we both wanted more. She buried a hand down my shorts and squeezed my dick. With her other hand she dug into her own pyjama bottoms and make rhythmic motions. I began to suck on the closest nipple which made her squirm with delight.

Things became more intense when, while I paused to get some air, she leaned upwards and stuck her tongue down my throat. This, and the gyrations of her hands in my pants made me slip, almost unstoppably towards orgasm, but pulling her hand away from my dick allowed the rush to subside.

Then we rearranged ourselves and the next ten minutes were spent in various positions, mostly with her above me our lips inexorably glued to one another. I wanted to feel every inch of my sister and so explored her body feverishly. With a free hand I pulled down her bottoms exposing her soft ass cheeks. Then I was on top of her and our mouths separated so I could dive between her legs tongue darting over the sweet folds which now glistened for me. She arched her back which gave me easier access to her pussy. She clasped both hands over her mouth and moaned.

I enjoyed seeing her like this. Her wanting more of me. It made me feel loved, like I was worth something. I would happily have eaten her out all night.

She abruptly stopped and her eyes met mine with a heat I had never seen in my sister before. “Fuck me.” The first words she had spoken to me that evening were the last I needed to hear.

“Show me.” I asked.

She pulled me closer and took my cock in her hand, stroking it a few times. Then she positioned me at her soaking entrance. “Make me yours.” Her voice was strained and hungry. I held her still a second. Time seemed to stop in that moment of anticipation. I pushed into her.

Our worlds exploded with sensations. The warm pressure of her pussy was almost immediately too much for me. Her eyes rolled back in her head. We froze for a moment, both of us on the edge until things called a little. Then, as naturally as lovers, we began to move with each other, finding a rhythm which pleased us both.

Her hands were on each of my ass cheeks and her strong thighs were wrapped tightly around my waist pulling me deeper into her with each thrust. We tuned out the world, we were just two siblings gasping on the sofa in the throes of sexual exploration.

The heat only continued to build and I felt a familiar stirring inside me which said that orgasm was coming fast. My sister began trembling and emitting a low moan that seemed to come from somewhere deep within her. Our climax reached us both at the same time, and the rhythm was disrupted. She bucked her hips wildly, her legs shook as her powerful orgasm made its way through her entire body careful to reach every corner. She screamed a beautiful scream of release Our bodies pressed tightly together giving and receiving, mouths sharing the same hot air.

All good things end. Ours ended in a sticky, sweaty tangle of limbs and mingled bodily fluids. Except this end was only the beginning of something new…

Source: reddit.com/r/Erotica/comments/wj7v15/bs_sexperiences_with_my_stepsis