My Nephew was expecting me to take him shopping today, but class ran late so when I go there… he was in the middle of having a bit of fun on his own… and yes, I walked right in on it!! I tried to get him to just finish so we could go… it was just taking too long. What was I supposed to do?? His mother was expected home any minute… I had to do something…. I offered to give her exactly what she needed, and well, she was completely for it. I never knew fucking my sister with a strap-on would be soooo amazingly hot!!!