Annoyed jerk off instructions

I'm on the phone with my best friend and you come home, horny again. But I'm in no mood to get fucked, but I don't want to be like that: while I'm having a good laugh with my girlfriend, I give you jerk off instructions so that you leave me alone. Pretty arrogant the way I treat them, isn't it? I thought it was funny and how embarrassing that my girlfriend overheard EVERYTHING!