Sexig skolflicka förför dig med korsade ben och blinkande trosor

You are a guest of your next-door classmate, she makes you sit just in front of her while doing some homework. She smiles and opens her long legs slightly, just enough for you to see what is underneath. She ignores what you can see as she crosses and uncrosses her legs flashing her white panties as you look up her skirt. It drives you over the edge.