I love the sex doll and whore outfits, but they do not help you at all with the succubus build, only thing they help you with, as all things that increase sexiness, is prostitution and dancing. It doesnt make the opponents hornier in battle, only weakness does that.

Piercing are very important to increase weakness, but they attract aggro in every inn, so you need to cover them up, which both of costumes do not do.

They are  pricey, you need to equip and de-equip them very often and thats just not fun.

I wish sexiness and these costumes would, if not help you, not make it harder to play. Sex doll outfit doesnt let you equip basically any weapon or shield, and whore outfit doesnt have any defence.