After the first week of freshman year, my room-mate and I had already established that we both like to jerk off quite often, and that we did not mind doing it in front of each other or with each other. We are both athletes, so our residence was divided between two wings, one for guys and one for girls (all athletes).
As the first few weeks went by, we started losing our inhibition in the shower and often chatted and hung out while showering or waiting for someone to finish up. The topic of our cocks and masturbation eventually came up, obviously, and we were all cool about it. Soon it wouldn't be surprising to see guys jerking off together in the shower room together, to the point where all 10 of us who lived on the floor were jerk off buddies.
Eventually we took it to our own rooms, still in groups though. We'd get together to watch porn quite often during the week. Other times we'd just sit around and circle jerk until we all came.
A lot of us were also willing to experiment, including myself. We'd stroke each other's cocks and cum on each other's dicks in the shower.
So for that whole year, our entire floor was a jerk off fest where no one had any inhibitions. College was awesome!