Tired and horny, I begin to change out of my work clothes and lotion up before dinner. My husband keeps rushing me to help him in the kitchen but I explain to him that I need a few minutes alone. As I’m lotioning my tits, I begin to play with them and get really horny so start to pleasure myself a bit. All of a sudden I open my eyes and realize my son is standing on the other side of the room watching me. Completely startled, I yell at him and ask him what he’s doing there. Realizing my husband may hear me, I quiet down but see that he was jerking off through his pants! I ask him to explain himself and all he has to say is that he watches mommy porn. I tell him that it’s not the same as watching his own mother! After some scolding, I am out of ideas and way too horny to think properly about how to punish him. I decide to ask him what would happen in the mommy porn he watches. He says he likes the kind that instructs him how to jerk off. I start by giving him a few but soon decide I’d rather write my own version. I show him my tits and tell him to show mommy what he does to his cock while watching mommy videos. I ask him questions about whether or not he’s fantasized about me or spied on me before. His answers shock me but make me even hornier! He wants to know how to be the best son and I tell him he’d have to suck my titties to earn that title. He does a great job so I stroke him while he sucks. It doesn’t take long for us to both cum at the same time. I lick his jizz off my fingers and then run out to see my husband before we get in trouble.