Your cute stepsister hurt her hand skateboarding and now she has a cast on it. Big problem is she can not get the arm wet at all so she asks you to help her take off her clothes and take a shower. What can a good stepbrother do but her her out. This is on the borderline right or wrong and as you decide to wash all of her body parts, you end up giving stepsister surprising orgasm. Things heat up pretty quick from there.