Stepmommy seduces stepson on the couch

I only married him to get closer to his stepson. And now that he's out of town on a business trip, it's just me and my stepson alone in the house together. I take this opportunity to seduce him. I call him to my bedroom. When he enters I'm wearing sexy black lingerie. He can't take his eyes off of me and from the growing bulge in his pants he definitely wants me to. I start out teasing him with my nice big tits. Then picking up a dildo to lick and suck on, I encourage him to take his cock out and start stroking it, imagining that it's his cock I'm licking and sucking. Removing my panties I slide the dildo into my tight wet pussy. Fucking myself, I encourage him to keep stroking and imagine that it's his cock in this pussy instead of the toy. That's it stepson, cum for stepmommy!