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Cheater step-Mom gets blackmailed by step-Son - you skip a class and don't tell your step-Mom, you're back home and you hear her talking on the phone. You can tell she's planning a getaway with her lover, taking advantage of your step-Dad's long business trip. You eavesdrop but something falls out of your pocket and she realizes you've been in her bedroom all along. She pretends she's talking with her BFF and she hangs up. You confront her, she denies talking to a lover, but you've been in the room all this time and heard everything that was being said. You know she's cheating on your step-Dad. You want something in return of your silence, and it's not going to be cheap. You want to fuck your step-Mom. She's mortified by the thought but she has no options, she'll have to do it or you'll tell step-Dad and her marriage will fall apart!