Lady Betty and Bertie have gotten together with their slave to give him a night that he'll never be able to forget, no matter how hard he tries to. They get him on his knees in the bathroom and make sure they're wearing leather gloves. They turns sitting in front of him and spit huge gobs of phlegm right into his face. They follow that up by slapping him over and over again.
Lady Betty and Bertie are sharing a slave and they're going to cover his entire face in their spit whether he likes it or not. Then there's more in store. They have him down on his knees with a collar around his neck. They both unleash torrents spit right into his face. When he seems to dislike it, they take turns slapping him with the soles of their worn shoes.