A younger sister who loves her older brother who accompanied her on a pre-wedding trip accidentally witnesses her fiancé having sex and gets very excited! She masturbates on the spot, but she really wants to have sex with her older brother, so she visits their room in the middle of the night and secretly rapes her brother! While her fiancé is sleeping next to her, she gets drunk on her brother's dick and locks him in a crab-like grip until he ejaculates inside her!