your step-sister asks you for your opinion on some outfits.. first she trys on a couple of outfits switching out of view so you cant see her change. she then starts to get more comfortable and starts changing in front of you. she notices your bulge and start laughing but keeps trying on outfits, she then notices you rubbing your cock and says she doesn't care if you do that. she then starts trying on lingerie for you and doesnt even mind that your dick is fully out and youre stroking to her. she even encourages you to keep going but she laughs at the fact that you are stroking to your step-sister. after she trys on a few lingerie outfits she decides to show you her body fully naked and tells you to cum for her, while she teases you with her body. you cum and shes laughs at you for cumming to your step-sister and thanks you for the help.