I always was very competitive with my sister. She's my younger sister, she got married first and with a horny black guy that fucked every pussy he could. I don't know if my sister knew he cheated on her or not but after 2 years of them getting married, I fucking my brother-in-law regularly. They got divorced 4 years ago and the guy went to his home country, but their son stayed with his mother, and simply changed the father for the son.