Kitten behavior??

[Van10]

My sphynx MooShoo used to suck his own teat as a kitten.

Quite original!

[rosethecopycat]

I wouldn't discourage it, unless you dislike her sucking your fingers (or ears etc.) It doesn't hurt anything and bonds her to you.

My Snowy suckled a faux lambskin for his first year, now he lays on it, squeals, kneads and grinds his teeth. ( I wish he'd suckle instead of grind)