Before you go out with your friends tonight, it's time for a little jerk session. You know how you get when you're all full of cum - you're liable to get into trouble, and I can't have that! As your step-mother, I need to ensure that you're cumming properly and not giving into little perversions outside of our home. Do you remember the time you jerked off in your sleepingbag at your friend's sleepover? They caught you and you were so embarrassed! No, no, there will be nothing like that out of my little man. Just do ask step-mom says and jerk that little dick of yours. I'll give you a nice countdown and you can make your little mess. Just remember, all good boys clean up their messes!