Luna is ADORABLE!!! Reminds me of my Mooch wen she as tiny! I think you just know when its the right time. And yep; you'll have your own adventures. I still miss my soul-kitty Glory; who I had from elementary school through college; but I'm very happy with my 2 I have now. There's room enough to love them all!
I just loved his personality and spirit, but Luna kinda acts so similar it's scary! She's followed me but also has a bit of independence so she comes and goes as she pleases, but Tuxedos are awesome, the coat is just.... amazing!