When I (23M) was 19, I accrued a very large body count over the course of four months. During most of the four months, I had one FWB who was my absolute favorite and still think about today. She was 18, petite, small tits, pretty round ass despite not working out, and long black hair.

We matched on Tinder and started talking. We agreed to hang out as just friends the first night, which was pretty fine. We drove around, made fun of some of the other guys who liked her on Tinder, got food, etc. The second night she wanted me to sneak into her room so we could watch a movie. She lived in a two-story apartment building where her family lived on the first floor. Her room was in the back of the building while her living room was at the front and her brother's room was on the side. I parked my car some distance away to see her wave me on while she was on the side of the apartment. The living room drapes were always closed so that was easy, but her brother's room were always open and we had to pass it. We both ducked under the window passing it by and then climbed into her window. Once we were in, we sat on her bed and watched a movie. By the end of the night, we cuddled a bit and held hands, PG that night. We then went on a "date" of sorts where we walked and held hands by a beach.

Eventually, she invited me to sleep over. I ducked under her brother's room and climbed into her window to find her crying. I asked her what was wrong and she said "her bf broke up with her." I had absolutely no idea she had a bf. I contemplated leaving at that point, but for some reason I wanted to stay. I helped her calm down a bit, apparently the relationship was unstable for a long time and it was possible he was using Tinder too, which was why she was on it. Anyways, we then watched a movie and then fell asleep. We eventually spooned and my hands started to travel towards her tits and her pussy. I kissed her neck (which she said was her major turn on) and she started moaning. After a while of playing with her pussy, she quickly took off her clothes and told me to fuck her. We fucked for at least an hour that night. She was very sensitive and came multiple times while trying to keep it down because her brother is in the next room.

It then became and almost every night thing where I would come over from 10 pm to 2am where we found fuck about 2-3x and sleep. We always had to keep it down since her brother was in the next room, but it only added to how hot the experience was, she found it really hot when I had to hold her bedframe so it wouldn't bang against the shared wall between their rooms. It was also exciting sneaking under and past the windows, knowing I could be seen. Her sex drive was absolutely crazy. She really knew how to grip my dick with her pussy and always came several times each round with her real sensitive pussy. She was the best I've ever been with. I knew it eventually had to end because she was developing feelings and I knew a relationship long-term wouldn't work out because we had too many differences to reconcile. And despite sleeping with many other girls since then, she is still the best I've ever been with.