I'm surprised you haven't fucked at a party. From what you've said, it seems like you party frequently. I've had girls just come up to me and ask "Wanna fuck?"
I lost my virginity at a party. I had a crush on this girl forever and she finally acted like she was into me. She kept trying to get me drunk (I mean, yeah I was drunk but she wanted me to get WASTED), kept shoving bottles in my face tellin me to drink this, drink that. I knew I was gettin laid. As soon as we were done doin the dirty, we went outside and she smoked a bowl with me. I was in heaven.