In the dim light of their shared room, the siblings can't deny their growing attraction. They start with secret touches, the girl's hand brushing against her brother's cock as they watch TV, him grabbing her ass when they think no one's looking. One night, they finally give in. She straddles him, impaling herself on his thick cock. They fuck slowly at first, savoring each other, but soon they're pounding hard, their bodies slapping together. They come together, her pussy pulsing around his cock as they gasp each other's names.