Step-mommy only gives you a blowjob once a year on your birthday. She doesn't allow any other sexual or perverted behaviour from her step-son. She notices you hiding under the table, you're trying to get a peak at her ass. You ask her if you can film her, but she says no. You're not allowed to do that to step-mommy. Step-mom goes to make the bed, and you can't help yourself, you get your phone out and film her bending over in her short skirt... but she catches you. She scolds you, telling you how naughty you are. You get upset and step-mommy is sad she made you cry, but she knows the perfect way to make it up to you, by twerking her ass and spreading her cheeks for you to wank over, just this once.