One by one, the kittens crossed the one-pound mark, and that's when Jen could breathe a sigh of relief.

In the following weeks, the kittens were introduced to solid food. Caramel was the first to sample the dish and decided he was ready to wean. Buttercream later followed suit.

Meringue was the last baby to give up on her bottle (on her own terms) at almost eight weeks old.

With the encouragement of her siblings, Meringue learned to climb up a cat tree but had trouble getting down.