David and his twin step-sister Lisa are home alone. Their parents have gone out for the evening. Lisa finds Dave in his bathroom getting ready to go on a date with his girlfriend Rachel. Lisa mentions to him that Rachel told her how big his cock was. He's a little embarrassed especially with his step-sister talking about the size of his cock . She asks him to let her see it. When he shies away she reaches for his towel and asks if he's chicken. When he says no she reaches in and pulls the towel away revealing his half erect cock. She reaches in to stroke it but almost immediately starts to ... Show more