never thought it was that small

I was talking to my gf tonight (who I have pics posted up on the hotwives section) she has only had sex with 2 other. Guys besides me none were black so my cock is almost six in fully hard she has never had an orgasm from anyone. So I told her u probably need a bigger cock in u an her trying to be nice is like there's probably something wrong with me maybe I can't have one.