Stepmom's Secret Obsession

I know she's my stepmom, but have you seen her body?! How could I not take pictures of her when she's undressing in my house? Those curves are enough to keep me up all night, especially when she's wearing that tiny pair of blue underwear that she knows drives me crazy. She has caught me jerking off to her pictures more than once and even tried to talk with me, saying that this behavior has to stop because I'm her stepson, but the conversation always ends the same way: I fuck her tits, she sucks my cock dry, and I pound her until she doesn't care about the pictures anymore. I think she loves getting my dick hard.