Tucked away in his room, a curious brother can't help but notice the subtle moans and rustling from his sister's bedroom. Intrigued, he creeps closer, pressing his ear against the door. He hears the unmistakable sound of wet fingers plunging into a tight, eager pussy. His cock hardens as he imagines her, legs spread, fingers glistening with her juices. Unable to resist, he pulls out his own throbbing member, stroking it furiously in time with her pleasure.