In the dimly lit bedroom, the sister, soaked from an impromptu shower, catches her brother's eye. She knows he's noticed her damp blouse clinging to her curves, her nipples tents. With a wicked smile, she approaches, her wet hair dripping onto her heaving breasts. She straddles him, feeling his growing bulge. "You like what you see, don't you?" she teases, rubbing herself against him. His hands grip her thighs, fingers digging into her flesh as she grinds harder, her wetness seeping through her panties, staining his jeans.