He grinned, and then began to thrust harder and faster, easily driving her over her edge, his paws pinning her down as his back arched, holding himself back easily, but appearing to struggle with it, letting her walls ripple around his phallus, demanding his essence. After a moment, he pulled himself free, and spewed his essence onto her belly, coating both of them with his cum. Finished, he lay against her, murring as he nuzzled her, rolling onto his side to let her get more comfortable against him.