I have a cute step-sister who is much younger than me, but she's so timid that she can't say no even when she's sexually harassing me... and she's my type! So I decided to jump in and wash her body while she was taking a bath. At first, she was surprised and refused. But when I peeled back the skin of her clitoris and washed her gently and thoroughly, she started cumming, making the most erotic noises, saying things like "wait, stop" and "please no!"