Dad's New Wife: Blackmail Blowjob

Rosie is your new Step-Mom and she's working out ok but, you have other ideas for her. She's headed out for the evening while Dad is out of town and she asks do you need anything and has a little heart to heart chat about trying to be a good Step-Mom. She comes back late and you know exactly where she was - out dancing and not with her girlfriend. You catch her coming in late and try to blackmail her for a blowjob. Rosie is one step ahead of you. She tells you to show her your dick and if she likes it, she will suck it. Rosie gives you the blowjob of your life and then turns the table on you with news that she received your report card in the mail. Rosie orders you to her bedroom because she has plans to NOT tell Dad about your grades.