Your step-sister is a bitch. Ever since she caught you sniffing her dirty socks, she loves nothing more than tormenting you. You're her little toy to humiliate with her sweaty dirty feet and do whatever she wants. She wants to rub her dirty, smelly, sweaty feet over your cock until you cum...you're so disgusting and you love it. And best of all, she can do whatever she wants and there's nothing you can do about it.