What kind of mouth do you like?

My only preferences in the area of mouths, are that they be warm, moist, and possessed of a reasonable enough degree of elasticity, to facilitate talking, kissing, and hygienic maintenance. Other than these, I have no requirements. Lip size is of no great importance to me.

very small lips

;D

anything's fine

wouldn't hurt for a guy to have some lips. like this link I wouldn't mind tom welling-type lips as well link

also, older men with fuller lips somehow look younger than men of the same age with really thin lips.

i think girls' lips should have a well-defined cupid's bow and some fullness to it, (doens't have to be angelina jolie-full). lips with fullness but no shape looks pretty yuck, they look like two semi circles or fish lips, like this link

i don't really care about the size, I like pouty lips, the kind you can bite onto :P the shape of lips are much more important

Something in between.

i like lips like these on guys. thin, but with a lot of shape on top.
link
link

for girls, I thinkt he same thing looks nice, in terms of shape, but they should be thicker.
link

Thin lips for guys but for girls I thinks its better if its a little thick and pouty.