My sister-in-law is also a lesbian and I fuck her

Since she was a teenager this girl knew she was a lesbian, after having sex with a couple of guys she discovered that they didn't satisfy her and decided to try her best friend, and with her she exploded with pleasure. This girl has an older brother who got himself a pretty hot girlfriend, and she can't help but get excited every time she sees her. Because of the way her sister-in-law looks at her, the girl is suspicious that she likes women too, so she decides to take the first step one afternoon when both of them are left alone. She dresses in her best lingerie and stalks her sister-in-law in the bedroom, both of them get excited and start masturbating very hard.