Step-Mommy was really one afternoon and decided to put on her boyfriends favorite outfit (and blindfold). She calls him to let him know that I she is playing with herself and waiting for him to get there. She tells him to come right in, say nothing, and start eating her pussy. I, fortunately, could hear the entire conversation and decided to lock the front door and go into her room.. I start eating step-mommy's pussy until she is about cum, and then she stops me so that she can suck my dick, all the while still believing that it's her boyfriend. She keeps trying to take the blindfold off, and I hold it down so she can't. Eventually she starts riding me and then start to feel weird because I haven't been saying ANYTHING. Finally shes's had enough and rips the blindfold off, to find... it's ME! She immediately flips out. She can't believe she was just getting fucked by my step-son. In the end, I convince her to let me finish her off. I do in fact finish her off, but not before CUMMING INSIDE OF