She probably doesn't know it yet, but she is a very lucky little kitty indeed! Landed in the lap of good fortune with you! (What a shame her former owners were so neglectful, but she's MUCH better off with you!)

And as for her age - Sara will be turning 14 this July, and she STILL has wild and crazy kitten moments. She's got many good years still before her, and I'm sure Cleo will as well.

Again, congratulations to the both of you, and have fun! (And I'm sure Pixie will adjust!)