Charlie is finding it hard concentrating on sorting out all of her books, she knows you are staring at her big enhanced tits and it's turning her on. She knows you have got a hard dick in your trousers so she decides that teasing you will be a lot more fun, she lets her nipple slip out of her top and instructs you to pull your hard cock out and start rubbing it while she leans over and shows you her ample cleavage.