Your hot step-sister has started to attend nursing school and she just found out what the minimum medically normal penis size is. Wow, your pathetic cock isn't even close to that size! She bets that when you went to the hospital for a check up, your sad small cock was the joke of the day between the nurses. If anyone asks, she doesn't know you, she doesn't want to be known as the step-sister of the small dick guy. Do you remember when you showed her all that hot taboo porn where the step-brother fucks his step-sister? Yeah, that will never happen, although she has a very tight pussy, your cock is too small to satisfy her. Just give up already, buy a porn subscription and jerk off with 2 fingers, that's all your sex life from now on!