I had sex with my mom …

A few years ago, my mom, my dad and I just had a threesome. And my dick was bigger than my dad’s. A few days later she came up to me and said she noticed the difference in size and said my dad couldn’t satisfy her like I could. We’ve been having sex ever since, and I don’t really feel guilty. It’s not like our kids will be retarded or anything because we used condoms.