How old does a kitten have to be before you know if it will be long or short haired? My mom agree'd to let me have another kitten, but my friends cat has long hair..I was thinking its possible for the father to have short hair; and the kittens..I hope..My mom doesn't want long fur cats I can't wait for my mom to move into her new place so I can get one I've decided on getting a male. I'll probably name him Kiba If I can't get one of hers, I'll adopt one from the Humane Society..but they is never really kittens there so I'm not sure about that (I want a KITTEN to introduce it to smitten..I think its the best for her)