You are going to be the death of meeee! T___T I think I want to draw every adorable part of this story so far... which pretty much means drawing the entire thing. You know how much drawing that is? Do you? IT IS A LOT!

"Wait," Tony says. "Wait, 'her'?"
I can not tell you how much this made me grin. Poor Tony! Not only does he had identity issues at the moment, but also gender issues as well! XD This is not a good time for him.

Also- Collar! Tony's cute pathetic protests! Him "twining [himself] around Steve's ankles"! I love these visuals. I love seeing them in my head; and I think I'm going to have to redraw the kitten that I -*coughs* may or may not be *coughs*-drawing because he is no way near cute enough to match this yet D:

I think the point where Tony started purring, is when I had to acknowledge that you own my soul now. Seriously, take it. It's all yours.
And then he ran away, and I melted into a puddle of 'awww' that got stuck between the keys of my keyboard. ♥!!!

Steve thinks he's cute.
This was so lovely and adorable, but I felt is seemed a little bittersweet? Tony's delighting over this revelation, but at the same time -though maybe I'm reading into this way to deeply and should just be focusing on the abundance of the sweet-tasting, lightly-whipped fluff... ahhhh fluff...- Steve's admission was said to Tony the Tiger kitten, not Tony the man. So although Tony is hearing the kinds of words he's probably always secretly hoped for from Steve for a long time, they're in the wrong context, and that just seems... sad? >:

Tony steps carefully up onto his chest, curling up into a ball. Steve's fingers brush over his head a second later, his scent familiar and safe.
Just... adorable ♥

And... whoa. I rambled. But your fic is so good. I want to eat it.
MOAR KITTENS!