A curvaceous, big-assed stepsister, eager to make rent, ropes her penniless stepbrother into a modeling gig. Naively, they pose for what they believe are innocent shots. The photographer, however, has other plans. He guides them into increasingly intimate positions, capturing the siblings' discomfort and growing arousal. The brother's eyes linger on his sister's round ass, while she can't help but notice his growing bulge. As the camera clicks, their taboo desires begin to surface.