Big Step Sister is in her room, watching a video with her hand down her shorts. At first she's embarrassed, but eventually admits that she was watching a video of a naked girl. The girl's boyfriend was licking her - down there! It looked like a lot of fun, so Step Sister was just pretending that her fingers were a boy's tongue. Fingers don't really feel much like tongues, though. Would you like to help your Step Sister out and lend your own tongue? It will be great practice for when you get a girlfriend of your own...