+rep n33d :b:3nti xd

+rep gave me catgirls one time pretty cool, also girl irl

They locked me in a white room with padded walls and rats.

+rep set my backpack on fire once

Once you have the right dosage and treatment, genetically alter the cat to remove as many non-human markers from the cells as you can. Not easy, you won't get them all, but what can you do. Breed a cat altered thus, aesthetically perfect, to large wildcat size.

Cut off its ears and tail. Xenotransplant it onto the girl. Put her on lifelong immunosuppressive medications to ensure the transplant isn't rejected.

Well done, you degenerate. You've crossed several moral, ethical and legal boundaries. You are no longer welcome in any Kingdom of Man nor God. But hey. At least you have a catgirl.

Find the breed of cat with ears and tail that best matches your aesthetic preferences, and fur the colour you want. Take young, healthy, robust specimens and inject the growth hormone directly into their circulatory system, in a large vein, not an extremity. Scale the dosage down, based on mass ratios, from what is effective on humans (this information is known to scientists, and can be accessed on journals. You'd have to pay for it, but that's a small price for salvation). Some cats will die. Adjust your dosage, and figure out a way to keep them alive. (Exercise and diet will be manipulated. Upon scaling the animal up, there will be issues. Maybe the circulatory system can't cope; if so, use steroid injections to strengthen the muscle. If the bones aren't keeping pace, add metal plates as extensions like we already do for humans in some surgeries. You get the idea. Fix the ♥♥♥♥♥♥♥ problems)