Calm Down Stepbr0

Your step s1ster is finishing off getting ready, sat on the floor infront of her mirror with her legs spread apart. You can see right up her skirt and it's making your cock rock hard. She can see you perving and tells you to calm down because you're suppose to be giving her a lift in a minute! If your step-s1s lets you jerk off over her pussy, will you calm down?