Don’t tell him. Let him think he’s immune to kitten perfection. Guys like to think of themselves as all big-man, not a slave to kittens.
He became a slave to Binxx, but the latter was already full-grown. These are joyful, playful, exuberant kittens, and no man can resist that kind of cuteness for long. I’d start a countdown, but it might be a week or more before he succumbs to the kitteh wiles, so I’ll just wait and see.