The girls take it in turns to sit on the slaves face the girls constantly change their bras and panties and sit on his face, when one girl is sitting on him the other girl is changing then the girls that has just changes then sits on his face and the other girl gets changed and this happens throughout the video the slaves face is sat on for over half an hour none stop but the girl his face was quite sore after, look at the gif image to see the bra and panties outfits the girls were wearing.