I have never been caught, but one time a buddy of mine was sleeping over my place in the living room. I woke up in the middle of the night, and caught him wanking his HUGE tool on my couch while watching a porn. He quickly covered up, and I just told him "Don't worry about it-keep going", and I went back to my room so he could finish.
We laughed about it afterwards.
We laughed about it afterwards.