Yuuri ties Victor up and uses him for his pleasure, and ofc Victor loves it even though it completely wrings him out. Yuuri rides Victor until Victor can't get it up anymore, and then he switches it up and starts fucking Victor's pliant, tired body while Victor just lies there happily, awed by Yuuri's stamina. Victor is just a toy for Yuuri to use for his own pleasure, and use he will, until he's finished.