My sister-in-law likes to confide in her brother-in-law; she has a boyfriend but they argue all the time. The beautiful sister-in-law often confides in her brother-in-law, and every time they talk, she brings up sexual topics. The brother-in-law, after listening to her a few times, quickly understands what she wants, especially since his wife is rarely home, so he indulges his sister-in-law, making her feel so good that she can't help but moan.