17, not 18. When I was 15 I got drunk with some guys at a party. I was spending the night so didn't care and got plowed. I woke up on the floor the next morning naked with another guy naked next to me. When I stirred it woke him up and he grabbed me and tried to fuck me. I said no and pulled away. He asked why I pulled away and I told him I wasn't gay. He said that I was last night and got fucked all night long to prove it. I looked at the puddle of sperm that was underneath me, and could feel more leaking out of my butt. I got up and went to the toilet, I had to go and a lot of sperm came out with a little poop. I looked at my butt in the mirror and it was red, and kinda opened up. I wiped up and went back and there were three guys there, all wanting to fuck me "again". I said no, and asked for my clothes, then they played a video and showed pictures they took of me getting fucked the night before. Turns out 7 guys took turns on me several times through the night. They said that if I didn't let them all fuck me again they'd spread the pictures and video around to everyone.

I submitted and got fucked three more times. I got my clothes and left. The next day 2 guys showed up at my house and took me out in the car and fucked me at a secluded spot in the woods. After that I knew that I was the type of guy that just gets fucked by other guys. 2 years later and I've let 22 more guys fuck me. I've been fucked by guys from 13 to 50 years old, single married, whatever.