I was browsing Nexus mods (Nope, i have nothing against Steam) and i found epic, just epic underwear (I think its for CBBE)
So i was wondering if someone knows what mod it is... Uhmm if this topic gets banned and i too i dont know, but there is no nudity
here (I mean the underwear, not body !)

try searching bikini on nexus there are lots of mods there must be in one of them

http://www.nexusmods.com/skyrim/mods/21324/