Just once. I had a fuck buddy for a while that was this girl that I met one night. We both lived in the same dorm and she was up late studying and I noticed she was quite busty (hard for me to resist) and so I struck up a conversation with her. Later in the evening she knocked on my door and told me that she's sleeping with me that night (as if I didn't have a choice lol but she knew that I was checking her out earlier) and so we slept together and it was very mediocre sex for me (though she gave great head) but man I felt like I was some kind of porn star with her! I'd bang the hell out of her for hours and she'd orgasm numerous times and couldn't get enough of my cock. She was always either giving me head, just stroking me, eyeing me, making remarks to me about my dick and telling me how great it was or something.

So our relationship was based entirely around sex and it was great knowing that I could get a girl off as well as I was, but we really didn't have much in common and she started coming around every single day wanting to hang out with me and was starting to get very attached and needy.

I felt like a bastard but what I had to do was just get real mean to her. I'd totally ignore her, tell her she wasn't important to me and all kinds of things. She got to the point where she was begging me to let her stay in my life. It was pretty fucked up to say the least. Eventually she got tired of knocking on my door all the time and being ignored and she just gave up.