Excited by the sight of his sister, the brother begs for sex. The sister refuses, but eventually gives in to her persistent brother... Reluctantly, he strokes his dick, puts on a condom and inserts it, but the sister doesn't react! Still not satisfied, the brother half-forces a second round! The brother goes even further out of control and secretly removes the condom and has sex raw! Then something strange happens to the sister who was acting calmly! She starts to seek her brother's dick, which she had been so averse to, and has multiple orgasms! She suddenly becomes a slut who even asks for creampies!