FUCK! Step Uncle lets me fuck and films EVERYTHING !!

I had a strange feeling from the beginning when my step-uncle offered me to film my sports exercises. He said I had to wear tight underwear in any case, otherwise you wouldn't be able to see later on the video whether I'm really using the right muscles. When I kneel there I feel a bit at the mercy ... But when the door suddenly opens I know that something is wrong here. The best friend of my step-uncle comes in with his pants open and claps his hand directly on my sweaty ass! What's going on here? When he keeps banging on my ass I ask my step-uncle to turn off the camera, then the two of them enlighten me! My step-uncle lost a bet and I !! Was the mission ... I still can't quite believe it, but I have to go through it now ... Still on the mat, he pulls my panties down and starts to fuck me hard while my step-uncle jerks off behind the camera! In the end I have to swallow everything and also pretend I think that's awesome. In all honesty, I don't think there was ever a bet and the two only needed an excuse ...