We bought him as a Sphynx-Devon Rex mix. He has somewhat curly fur and a naked belly. Our vet said he is in unusually good health for a cat his age. He jumps on the cat condo’s highest rungs and watches everything when he’s not running through the house not being aware he’s gotten to be an old cat.
Naked on the belly.
I didn't think of that, but I suppose at times, with felines, since belly fur can be different than the rest, and partially near-hairless near the loins fairly regularly among domesticated felines, then if a portion of what I'll assume are not dominant genes were to express in only part, then hairless belly it would most likely be (said after-the-fact, while looking in the rear-view mirror).