Blackmailed by My Step-Brother for Anal Play

Description: Your step-sister is so happy to finally have some alone time in an empty house, but little does she know you decided to stay home today after all. you remind her of the secret you've been keeping for her, and totally unrelated, how much you'd enjoy some anal sex right about now. she's indignant and repulsed by the idea of letting you fuck her ass, but eventually agrees to let you stick your tiny dick inside her tight hole just this one time. you are so well prepared that you even had some lube with you, which was totally a coincidence and not at all premeditated. your step-sister tries to demean and make fun of your cock size, telling you to stick it in whenever you'd like when you're already fucking her ass. but eventually her facade breaks down, and she can't help but grumble and moan about how disgusted she is to be enjoying how naughty and hot all of this is!