I poked my head into her bedroom, and saw that the bunk bed was shaking slightly. I was very careful as to not let my presence be known; I wanted to know what she was doing. I peered, ever so slightly, into the top bunk. I could not believe my eyes. There on the bed lay Sarah, surrounded by stuffed animals and lying on her purple duvet, with one hand on her crotch, playing with herself, and the other on her breast, gently massaging. She was completely naked, her clothes in a neat pile next to her. I ran my eyes over the length of her body, a thing I had dreamed of doing. It was more beautiful then I had imagined. She was very pale and had no tan lines, and nice, thick thighs. Her blonde pubic hair was neat, and her breasts were bigger than I had expected, with small round nipples, fully erect. Her head way flung back on the pillow. Her glasses were on, and she made slight moaning noises as she rubbed herself. .....