Pegging surprise this slave in luxury room

Description: I have my slave on the bed on all fours with a surprise he doesn't expect. i'm going to fuck his ass with the biggest, fattest cock i have. he's not ready for this level, is he? i start stretching his ass and putting the tip of my cock in his wide-open asshole. he wants more and more, and i'm going to stick it all the way in. he keeps screaming with pleasure, and people are knocking at the door to see us fucking, but they don't know there's a mistress fucking his ass. to finish, i leave him lying there waiting for my friends to come over.