I was born with a human body, but I have decided that I self-identify as a cat. I will take a cat name and demand to be treated as a cat.
I'm not going to use the litter box or go Outside naked, but I will wear a prosthetic tail, nap all day, enjoy a little weed, and claw at anyone who suggests I'm deluded. Oh, and I'm keeping the opposable thumbs. But you call me Cuddles! And stop laughing, you right-wing oppressors! It's my right! I was born with the wrong body! *hiss*
*scritch* I should probably spend more time with bipedal mammals than I have been lately.