I met my big-breasted sister when I was visiting a friend's house. She was curious about the younger guy, so she started to seriously meddle with him, asking him if he had a girlfriend and making sure he used birth control. However, when she had a drink, the man got aroused by the sight of my sister getting wild, and the sister got horny at the sight of his dick, and even though she said it herself, she actually liked it raw. She couldn't resist and ended up inserting it raw and cumming inside him!