Maybe you get bonus stats for not wearing any clothes like making your appearance add certain amount of points in the plus part? I thank the same thing can happen with wearing certain clothes sets as well.
It increases your slut fame everytime in the begin when enter bareshade, also i aways have to put the pants on to visit the sawmill (then i imediately remove it).
That is fine, i was thinking it might have give bonus stats when it comes to passing skill checks, or in combat if you are naked or wearing certain clothe sets during the game.