But man, don't insist on me and leave my cock because my girlfriend is about to come

I've been sharing a flat with a couple of college classmates for a few months. there is one of them who, although he has a girlfriend, drives me crazy and even more so for a couple of nights that he let me put my hand in the bathroom and jerk him off while his girlfriend had breakfast in the kitchen. i cannot forget it and i am looking forward to trying it again. when i get home and taking advantage of the fact that he is alone, i can't help but put my hand on him and although he refuses at first, he can't resist with the second lick.