I love how very cat-like Jensen still is even in his human body. All of the nudging, and the kneading at Jeff's knee, and how he still has all of those "Not only am I better than you. I'm the supreme master of the universe compared to you!" cat looks that my own kitty just loves to give me at times.

It twines around his fingers like spider's web, and Cat nudges him again, insistent.
I also REALLY loved the description in the line above.

And Zach is here too! Very cool! I love how you've introduced a bit of history to your Jeff through the mention of Zach! It puts another layer down on an already wonderful new world.