I voted zombie but I agree that the bikini's ability would be very nice for achievement hunting
And the nurse one does just look really nice, although the animations are nude only so the ability is what I think people should vote for
Well, I am. SugarCane as a boss was pretty hard for me, if not use cheating (pressing burger button to heal yourself), so it will come in handy to slowly killing her by debuff. Also about zombie-enemy it is easer to kill them by sex (with this skin) and not with pickaxe
(All things above are highly subjective and are just my imho)