I'm a 25 year old guy, last saturday me and three good friends that I work with went on a hiking trip. Two of them are married, me and the other one are single, but he's engaged, and to be married in april. We each had our own pup tents, and after hiking to the camping spot we'ed picke out, got came set up. It had been a good day, and after supper we just sat around the fire and shot the bull till about 10:30 when we turned in. About 30 minutes later I heard somebody come into my tent, I was laying on my stomach, and hadn't went to sleep yet. Then I felt the blanket being raised up, then a hand was on my ass, I prentended to be asleep, then his fingers were under the leg band of the bikini panties I wear. And then I was feeling his finger probing my ass, and a few seconds later he was finger fucking me. I had no idea who it was, but I was liking what he was doing, and I responded to it by spreading my legs. He knew then that I wasn't asleep, but never said anything. A little while later he had my panties off, got on top of me, I felt the tip of his cock between my cheeks, and then his cock was buried in my ass. His face was right next to mine, and as he started stroking, he started kissing my neck and ear. I pushed up to him letting him know that I liked what he was doing, and aslo knew that he was making me his bitch. And he responded by pounding me harder, and it wasn't very long till he was pumping his load in me. He got off and quickly left, I found my undies, put them back on, and then spent the next hour trying to figure out who I'd just let fuck me. It hadn't been the first time, but I'd never even thought about any of the guys I was with, But one of them must have heard, or felt something and took a chance, and he ended up hitting a home run. The next morning was kind of ackward at first, but none of them acted any different than the day before, as we started hiking that morning I was a little embarrassed wondering which one I'd let fuck me last night, and wondering what they were thinking. But the day went well, and when I was dropped off at my house I still had no idea which one of them had introduced his cock to my ass and made me his bitch.