Within walls so thin... SeXStoRY

When I left home and went to the university in the city, I understood that losing a large part of my privacy was intevitable. I spent my first year at the dormitories, where it was often hard to get ten minutes alone. It felt really crowded over there. Even though, on the other hand, the girls were plentiful and beautiful. I had my share of adventures at the dormitories, but I'll save that for another story. Anyway, after my first year, I was looking for a different kind of accomodation. Luckily, thanks to a friend of mine, I managed to get together with three other students (two girls and one guy) and we rented a flat. There were two bedrooms and a living room, where we'd often hang out and where we'd become close friends. And sometimes, after a bottle of wine or two, the topic of our conversations often shifted to sex, where myself, Jane, Sylvia and Rob often traded stories and dreams, but never crossed the line. It's common for the students around here to go home every weekend. One time, however, I had a lot of work to do, so I stayed in our flat, along with Sylvia, who was an outgoing, talkative, twenty-year-old girl. She was not the prototype of a beauty queen, but it was impossible to call her unattractive. Sylvia was of average height, with shoulder-length mahogany hair and green eyes. She was gifted with very visible curves – her hips and D-cup tits always caught the male eye, as well as a nicely shaped, big ass. Sylvia had no problem walking around the flat, dressed only in her nightgown, with her boobs proudly stretching the fabric. That image was burned into my mind and I lived in a dilemma between the two Sylvias – a friend, yet a girl I really wanted. That weekend, I went to bed around midnight, working hard to get my schoolwork done. Sylvia went to a party. But the walls in the building were very, very thin, and I was awoken by the sound of the door. Nothing out of the ordinary. I was almost falling asl**p again, when I heard a deep male voice from the living room, which was right next to my room. “Yeah, baby, suck it.... aaahhh...” I immediately knew what was going on, and my curiosity got the best of me. As silently as possible, I crept to the door and opened it just enough to be able to look into the living room. Sitting on the couch on the other side of the room was a tall man with an athletic build. His shirt was unbuttoned, his eyes closed and between his legs, Sylvia was sucking his cock. They didn't seem to notice me. After a moment, Sylvia stood up. Her back was turned to me, so once her jeans dropped, I could admire her luscious ass in a black thong. But not for long, as she stripped naked. My cock started to get harder than ever. The guy turned Sylvia around, held on to her big tits from behind and kissed her on the neck. She moaned as he slid his hand between her legs. Finally, I could see Sylvia's boobs in full glory. Her big nipples were already hard and I could tell they were sensitive, judging from her reactions to the stimulation. I just couldn't resist anymore. I grabbed my cock and firmly started to jerk off. Meanwhile, the guy finger-banged Sylvia's pussy and continued to massage her tits. She returned the favor by playing with cock. It was just as hard as mine. Just when a sparkle of fear that I might be caught hit me, he looked my way. I froze... he clearly noticed me, although the living room was lit pretty poorly. Before I could do or say anything, he smiled and quickly put his finger on his lips. Then, he said out loud: “Bend over and show me that wonderful ass.” He smacked it as Sylvia moved over to the armchair, her thighs almost glistening with moisture. Sylvia bent over obediently. He stuck two fingers into her dripping slit and gave Sylvia's bottom a light spanking in the process. A couple of times, he glanced over at me, smiling wickedly. “Fuck me,” Sylvia breathed out, still not knowing that she was giving me an exclusive show. He laughed. “Say please.” “Please... fuck me, Paul. I can't wait any longer.” “As you wish,” he laughed, positioned himself and rammed his cock inside her mercilessly, grabbing her hips. Sylvia let out a muted scream and to every thrust, she ground the words between her teeth. “Yes... that's... it... fuck... me... hard...” And Paul did just that. The room was filled with slapping noises, moaning and intoxicating scents. My cock was about to explode. Suddenly, Paul grabbed Sylvia's hair and pulled her head back, gently. “Smile for the camera, sweetheart,” he said with a dark laugh. I froze again as Sylvia's eyes opened wide. “What? How long are you...?” Paul interrupted her. “Long enough for not letting him join the action.” He laughed again. “Come here, man. And you, Sylvia, be a good girl and suck his cock.” It would be rude not to respond to such an inviting option and now it was pointless to hide. I finally came out of the shadow and stepped forward. Sylvia looked surprised (and a bit d***k), but after a split second, she eagerly took it in her mouth. Meanwhile, Paul started fucking her, slowly, but roughly. I fantasized about this moment dozens of times, but when I felt Sylvia's tongue spiraling around the head of my cock, I knew this was more than I could ever dream of. Her head was tilting as Paul repeatedly thrust his dick inside her eager pussy. Sylvia managed to multitask, with her lips closed around the shaft, she started to suck. She looked up. Oh god, did that look immaculate. The sucking gradually got more and more intensive and I pulled my cock out, wanting to enjoy the moment as long as possible. “I want you to ride me,” I said. I lay flat on the ground and Sylvia eagerly slid down on my rock-hard cock. She bowed, letting me suck on those big tits. Sylvia was in charge of the tempo, and she was like a bitch in heat, riding my rod so vigorously it almost caught on fire. We both maintained eye contact, her deep green eyes, partly hidden under the dark hair were glowing with lust. Sylvia's pussy was wet and surprisingly tight, which felt amazing as her vaginal muscles gripped my cock. Paul came from behind and started forcing himself inside her ass. He was rather thick and Sylvia did try to complain. “No, not there...” I silenced her by kissing her deeply, fighting her tongue with mine. “Just relax, baby...” Paul said and with a victorious groan, he slid inside. “Aaaaah, god, you're so tight.” Her initial tears were washed away in a few moments. She started taking it and even fucking back. I could feel Paul's cock through the vaginal wall. Soon, we found the right rhythm and were banging Sylvia's holes unisono. Our hands massaged her knockers and from there, it was a short way... her body started to tremble and her voice got gradually louder higher. “Don't. Stop... yes... yes... ” Her shriek almost broke the windows and her fuckhole held my cock in vice-grip. Sylvia was shaking violently and we bouth could feel the intensity of her orgasm. Just a few seconds later, Paul let loose his roar and pumped his load inside Sylvia's ass. I was close myself, but I pulled my cock out and took the lead. Sylvia was still breathing heavily and regaining control, I lay her on her back and fulfilled my dream. She understood immediately and held her tits together around my cock. I fucked her tits and within moments, I detonated. I almost lost consciousness, it was one of the most intense orgasms I ever had. The first huge wave of cum hit her face, the second one her chin and the last drops glazed her magnificent boobs. Exhaustion and sensation took over and in a few minutes, we all fell asl**p on the floor. When I woke up in the morning, Paul was already gone and Sylvia was just getting out of the shower with a big, shiny smile on her face. “Well, look who's up. The Peeping Tom,” she laughed and gave me a kiss on the cheek. “That was one wild ride. I'm so sore.” Those were the last words Sylvia said about that night and the last time it was mentioned. She behaved like always, nothing has changed. I almost started to believe it was a dream, since Paul never came around again. But one day, maybe a month later, somebody knocked on the door. It was Sylvia. “Are you staying here this weekend?” It sounded innocent. Almost. I just smiled at her and canceled my plans. (NOTE: The end? Maybe not. :) Any kind of feedback, ideas and suggestions are welcome and more than appreciated.)