What characters are these scantily-clad guys cosplaying as? Possibly NSFW (Contains near nude guys)


   


Does anybody knows what anime these costumes are from, and what characters they are for? Is this even from an anime?
The anime is from Kill la Kill made by trigger studio.

The guy on the left is Inumata in his nudist beach costume:


The guy on the right is Mikisugi in his nudist beach costume: