A curious babysitter, left alone with her young charges, can't resist the allure of the open window and the passing trains. She spreads her legs, her fingers finding her wet, aching pussy, rubbing it raw as she watches the world go by. Her innocent touches turn into hungry strokes, her moans barely contained as she fantasizes about the thick cocks she sees. The risk of being caught only fuels her desire, her clit throbbing as she nears climax.