Younger brother (18+) has a hard on and needs help from his older sister. His sister is very awkward at first and doesn't want to be shown her younger brothers cock. He begs her to help him out because he doesn't know what to do, and it just won't go away... She finally gives in and starts slowly with a hand job but that isn't working. She puts it in her mouth next and she confesses that it's turning her on. He ends up cumming deep inside her, ending with a HUGE load. She has never seen her brother like that before but now she can't help but crave him.