I was reading a book on my couch when my step-son comes up to me, gets on his knees and starts sliding his hands up my skirt. I tell him to stop and wait till later but then I feel his fingers touching my cock. I try to ignore it but it feels too good. I start getting hard and decide shooting a cum load on my step-sons face sounds perfect. I pull out my hard cock for my step-son to start stroking. I grab the back of his head and make him start sucking me. He is such a good step-son and takes step-Mommy's cock so well down his throat. He is so good that I couldn't fight it for long and came all over my step-sons face and tongue. I made him lick it all up.