[Swirl]

Your situation is exactly opposite to mine. My boyfriend has his own place, but he's terrified of us getting pregnant (yeah even with protection), so we do everything but the actual intercourse.

As for suggestions, the "easiest" one would be to lock your door. Me and my ex used to do this all the time, even when the lock was busted
We would just touch each other (again, no intercourse) under the covers, maybe you could do that, so in case anyone walked in we would pretend to be asleep hehe.