Thanks for all the feedback
I just wanted to make sure that "it" was an "okay" pronoun to use.
Mostly I find that when the shapeshifter is male or when the main ("I") character doesn't know him that well, I can use "it" without even thinking, but when the shapeshifter puts on a female face, I sometimes type "she" or "her" without knowing it. Putting "it" onto a "girl" character just feels odd somehow
(Well, no one ever said writing would be logical...)