I was sitting at my desk and he threw himself down on his back on my couch. One time, I remember we'd both been single for a while and he came up to my room while I was working on a paper.
Typically, we'd just be hanging out bitching about guys, or school work or whatever. They were always just short enough that when he sat the right way you could get a nice view of his Y fronts. Anyway, he was a real jock type guy and always hung out in t-shirts that held really tight onto his body and loose fitting track shorts. He lived two floors under me and we always hung around together but were never romantically involved.