The Khajiit tail is the wrong shape though.... *sigh* Has that dumb-looking "bulb" on the end (which I RP-rationalize by the fact that my Khajiit trader father threw me out when I refused to go into trading, and the end of the tail got caught in the door when he slammed it behind me....)
I think the fur is longer at the end of the tail, make much more sense than that it's thicker.
And yes it's look a bit strange, closest in animals is probably the dusk at the end of lions tails.
Perhaps the Khajiit dipped his tail in some hair growth potion, pretty smart as it's no cloth to cover them.
An idea for an mod, benefit that we can both armor and enchant the tail covering.