My step-son came home from school and immediately went into his room. It WASN T EVEN DARK YET. So I go to check on him and see if he is okay. As soon as I walk in I catch a glimpse of something black and lacey as he pulls the covers over himself. Yep, he was masturbating with my panties. At first I am livid, but then I realize I am a supportive nurturing step-mommy and want to use this as a teaching moment. I instill in him that it is okay to masturbate, and okay to use my panties to do it, but ONLY IF HE ASKS PERMISSION FIRST. To reinforce positive behavior I offer to help him masturbate, and to further press the point I offer to let him fuck me, and then of course; choose where he wants to cum. He obviously chose to cum all over my face and learned a valuable lesson that asking for permission is better than asking for forgiveness.