The man's ass gapes wide, swallowing the enormous girth of the machine's dildo. His body trembles, sweat dripping down his chest as he takes every inch of the monster cock. The machine's pace quickens, its dildo knotting deep inside him, filling him completely. The man's moans turn to cries of ecstasy as he feels the dildo swell and pulse within him, his ass clenching around it. He bucks his hips, fucking himself on the machine's monster dildo, until he's left a panting, spent mess, his ass dripping with lube and cum.