I once had a guy with a big black dick tell me he was just going to rub it on the outside of my ass. He then proceeded to beg me for just the tip, no more. Finally, he ended up slamming his big fat cock up my ass to the hilt. I wasn't at all planning on this or fully prepared. Well, Mr. Big Dick ended up with poo poo on his pee pee. To "top it" off, he had the nerve to be mad at me!