So I introduced them early... like only after 24 hours instead of after 5-7 days.
Thankfully, Monkey seems indifferent. She doesn't like to be chased or played with (duh) but despite her propensity towards violence against humans she refuses to put the "Tiny Meow" in his place with a quick lil bitchslap. So he chases her around the house a bit and she tries to talk him into his place ineffectively.
This photo was taken to show scale.
Jack helped Mommy decorate the tree. He actually helped! He would take the ornaments out of the box one at a time and hand them to me, sometimes pointing at where they should go on the tree!
Matt has camera skills.