Dick rating for work colleague

Description: Dick rating for work colleague - my colleague is always teasing me how we are both well endowed, i have these super big tits, he has a big dick! i want to put that to the test, and i already have a plan in mind: if his dick is small, i'll make him cum with a titty fuck, if his dick is big as he claims, i'll let him grab me from behind and stick it to me. take a wild guess...