The room is filled with her soft gasps and his low groans as she discovers the wonders of foreskin. She watches, entranced, as his cock grows harder, longer, under her touch. The sensation is unlike anything she's ever felt, the smooth skin moving over the steel beneath, the slight resistance as she pulls back, the slick heat as she strokes forward. She's a quick learner, her hand moving with increasing confidence, her eyes locked onto the fascinating sight of her hand wrapped around his cock, the foreskin moving like a wave over her fingers.