You have a very naughty step-sister who wants to tie you down, you let her. She then tells you she is about to let her boyfriend in to sit above you so you can watch her suck cock! She's interested to see if you find it arousing. She gets a little carried away and ends up fucking him over your face, begging you to suck her clit as she fucks him slowly. He's got such a massive cock, she can't even fit it all in! She then sucks him off again and he quickly cums in her mouth, she lets it dribble out the corners of her mouth and fall on your face!