Mastermoon, in his private sanctum, worships his latest acquisition - a thick, ribbed dildo. He lubes it up, the liquid glistening on the prominent ridges. With a wicked grin, he positions himself, teasing his tight hole with the toy's head. Slowly, he takes it in, his body stretching to accommodate the girth. Mastermoon's moans fill the room as he picks up the pace, the ribs stimulating him with each thrust. His body shudders, signaling his impending release, as he rides the toy, chasing his climax.