You have come to pick up a book but Sophia is struggling to find it, as she is looking through the piles you notice that you can see straight down her top which is slightly too big for her. As she leans over you get a glimpse at her nipple and your dick springs to life, it doesn't take Sophia long to notice the bulge in your trousers and before you now it you are fulfilling your librarian fantasy wanking over her cleavage while she teases you.