Fucked instead of girls night stepbrother!

Yes, finally girls' night, my 3 friends and I wanted to party in the old town, make a few men clear hehe So off to the bathroom and make it pretty! I forgot to close the door so my little stepbrother came in. well what the heck!! But touch my ass, that's not possible! But he was always horny for me so it just happened and we fucked!! It's better to have a fuck now than to go empty-handed in the evening!