step bro, why didn't you knock?! i thought i was home alone and was sooo close to making myself cum when you walked in and caught me in the act!! omg i'm so embarrassed... but wow... i can see you getting hard through your sweatpants and i didn't realize you were so BIG 😮🍆

let me be a good step sis and instruct you how to cum before daddy and step mom get home 😈