I haven’t caught a roommate stroking, but I’d ask if I could join. I’ve been caught though. In college, my friend was visiting me in the dorms when my roommate was out of town. My friend got up to take a shower. I could jack off real fast while he was gone since I had my morning boner. I’m so close when he enters. I say sorry, and I start to cum. He says he had forgotten something. He ends up watching me finish, and i’m embarrassed, but we both laugh it off.