Your girlfriend won't let you fuck her ass, you really want to try anal for the first time and you call your step-mom to your room. After a chat you tell me that you want to try anal and I say that I will let you fuck my ass for your first anal. Just don't tell step-dad and let's not tell your boring girlfriend ! It feels so good with your cock in my ass and I cum so hard with my step-son's dick up my ass. Let's keep this our little secret ;)