I have been having s** with my mentally retarded step sister for years now. It started when I was 15 and she was 23. I made her feel bad for me because I didn’t know what s** was like and she said I could practice on her. She ended up liking it, so we kept doing it whenever we had the chance. Now that I am 30, and she 38, the roles are reversed. I am married, and feel bad for her since she will probably never find anybody, even though she’d kind of pretty. So whenever we have family get togethers, we sneak away and I have s** with her so she feels loved.
