My girlsfriends stepbrother

Most of the time I had girlfriends, even though that I've been attracted to boys likewise. Anyhow, when I was 21, I was with a really cute, younger girl Andrea, who never had sex before meeting me in her 18 years. And the cutest boy in town lived under the same roof with her, her stepbrother Martin, who was 19.
By the way, my name is Nick and just turned 22. I dont consider myself a hunk, though most people that know me would agree that I'm above average looks' wise. I'm 5'9" with 148 lbs, have brown hair and eyes and a smooth, completely hairless (I shave everything but my main hair) well defined body, though I'm definitly no beef-cake.

But back to my girlfirend and her stepbrother. After Andrea and I had her first time, she wanted it quite often. Way more often than any other girlfriend I ever had before. I slept over at hers at least twice a week, and she usually spent the weekends at my place. And if we both could find time, we met in between aswell. And there were only a few days in all those 5 months I've been with her that we hadn't have sex. And all I can tell you, I had a great time with her. We were the perfect couple, at least in bed, but not outside. She was into the same stuff as I was, and always willing to add to her and my repertoire.

One of the times I slept over at her place I had to pee early in the morning. I tried to find my boxers but I couldn't, and I didn't want to wake Andrea so I didnt turn on any light. I had to pee badly so I thought its just the next door outside her room and went naked. Everything went smoothly when I went into the bathroom, but when I came out, Martin was standing at his door in his boxers, still half asleep. He just must have gotten out of the bed and was on his way to take his morning pee, and when he saw me, he just stared at my cock. When he realized what he was doing, he blushed and looked in an other direction, but his rising penis told me he liked what he saw. I quickly said 'Good morning' and slid into Andreas room.

I must have woken her when I got to bed, and as nearly every morning, she was horny like she hadn't gotten it at all for weeks. When we had morning sex we hardly needed any foreplay. My penis sprang to attention just by the look in her face, and she was ready to go nearly all day long. We started to kiss and and I rubbed her pussy, which was already wet, and with my left hand I caressed her breasts. And she massaged my back. We had one rule at foreplay. Either she didnt touch my penis at all, or, when she did, she made me cum. The reason is simple: otherwise I wouldn't last too long inside her. In the morning she usually went with not touching my cock at all, since she wanted to feel me inside her without having to wait those few minutes until I had recovered.

So this time was no different. She rubbed my back until she whispered into my ears that she wanted to feel me inside her. I started to kiss her again, positioned myself on top of her and slowly, without withdrawing from kissing, penetrated her. She began to moan into my mouth like she was ready to cum. But of course she wasnt, she just loved the feeling of the first penetration. When I was completely inside her we stopped kissing and I slowly withdrew the whole shaft out of her soft pussy, before I gentle inserted my whole dick again. Then I picked up some speed, and she opened her eyes. First she went completely pale, but then she blushed. She didnt say anything so I stopped and turned my head around to look at the same direction she was staring.

I must have completely forgotten to lock the door, maybe I hadn't even closed it. Her stepbrother was at the door, watching us. I didnt know how much he had seen, and to be honest, I didnt care, but I wanted him to close the door so their parents wouldnt see us. So I just told him to close the door, from either inside the room or outside. Then I turned to Andrea and kissed her. She looked quite astonished what I just said but didnt protest. She kissed me passionatly as I started to slowly penetrate her again, while I heard that the door was closed. I looked over my sholder and saw Martin closing it from inside Andreas room. He turned around and I could make out a tent inside his boxers. 

He didnt move from the door, he was just standing there watching while I started to pick up some speed again. Andrea told him the least he could do while watching us in such an intimate act was to show us his lovestick, as she put it, which seemed to leak some precum. He slowly slid his thumbs inside the waistband of his boxers and withdrew them, while he never took his eyes from us.

From the distance I couldn't tell exactly but I thought his cock was a bit bigger than mine, maybe around 7 inches. (Mine is 6.2 inches, and even though some might consider that small, girls and boys alike never protested.) He was even more beatiful naked than all those times I had seen him in clothes. He had little hair on his body, only a small patch above his dick, and a really small amount of hairs on his chest. I looked back down to Andrea and kissed her again. She kept it short and whispered into my ears that it was a shame Martin would only watch us. I smiled and then turned my head around and told Martin if he didnt want to come a bit closer. 

Without saying anything, still looking very closely at what we were doing, he came to the bed and sat down on the edge it. He was watching my dick as it slid in and out of his stepsisters wet pussy. Andrea took Martins penis, which had produced quite a big amount of precum, and started to stroke him slowly. Martin didnt object as Andrea stroked him in the same rhythm as I penetrated her. He looked closely between her legs to watch our act, and Andrea and I didnt take our eyes off his penis. I started to feel that my orgasm was building up really fast, so I told Andrea if she wanted on top. With that I usually told her I was near, since when she was on top riding me in her speed I would last some more minutes and she could find her pleasure too. She withdrew her hand from Martins throbbing dick as we switched places.

She started to ride me and closed her eyes, what she usally did when she was on top. I looked over to Martin who was still sitting at the edge of the bed and hadnt touched his penis. He watch us as his stepsister went up and down on my penis. I moved my hand slowly towards his hips, and he put his on top of it and guided me to his pulsating dick. He guided me up and down on his penis, until I started to get faster and faster on his lovestick. I started to stroke him in the same rhytm as Andrea went up and down on my penis. I nearly forgot about her as I was fascinated by Martins dick, which I stroked with passion.

Andreas moans where getting louder as her breathing got heavier. It reminded me of her presence and I knew she was near cuming. I used my free hand to carress her nipples, and that brought her over the edge. She started to breath heavy and a loud moan made sure everyone in the house knew she was errupting. She never opened her eyes as she rode herself thorugh her orgasm and I never withdrew my hand from Martin. When she slowed down she opened her eyes, and looked to me with asking eyes. Usually her thightening wet pussy at her orgasms brought me over the edge too, but this time I had yet to cum. She looked over to Martin and saw my hand stroking him. She didnt say anything but I knew she didnt like it.

Andrea then got down from me to get down on me. She started to suck me and knew how to work her tongue on my knob. And I was near my orgasm again in no time. I still stroked Martin as my body tensed and my breathing got heavier. After only several more strokes with her lips I shot my semen inside her mouth. She never swallowed but also didnt want to withdraw her head as I shot. Spurt after spurt of my hot cum went inside her mouth. 

And I still managed to stroke Martin. When my orgasm subsided and I had opened my eyes again I looked down to Andrea, whose mouth was full with my cum, and then over to Martin, who had also shot his loads. My hand was full of his cum. I stopped to stroke his subsiding penis as Andrea crawled on top of me, still with my cum in her mouth, and started to kiss me. I tasted my own cum as she shared it with me. I like the taste of cum, even my own. As Andrea and I shared a long kiss while our tongues wrestled around the cum Martin got up from the bed, put on his boxers and went out of the room.

Andrea and I never talked about what happened that morning, but five weeks later we broke up and I'm still not sure if the only reasons were our out of the bed differences...