Stepsis catches you stealing her panties

Your bratty step-sis gets put on laundry duty and as she's going through your dirty clothes, she finds a load of her old dirty panties in there! It's obvious you fancy her, but this... this is pathetic! Feeling sorry for you and your pathetic interest, she decides to give you a sexy panty show - rubbing the panties right up against her wet pussy and fingering her tight pussy right up close to you. She knows you're getting rude hard watching, so as a last reward, she gives you all the panties she's just played in, so you can wank your pathetic dick into them.