All three are different. Mr. Clark, the most devoted licker, has the
roughest tongue, which can hurt on sensitive skin. We seem to
appreciate, mutually, that I've grown a beard.

Rhonda is in the middle. At the adoption place, when the cage containing
her and her sister, Rhonda surged out, jumped into my arms, and
industriously started licking my nose. Her sister ignored me. THAT
decided who was coming home. Her tongue has gotten a bit rougher, but
it's very fine sandpaper.

Ding has a very soft tongue -- really no roughness at all.

Probably following Mr. Clark's example, they all lick one another as
well as available humans. I'm lucky that the three (adult and two
kittens) adopted together have always been affectionate toward each
other.