This Japanese-language link came to us described as "the motherlode of Japanese superhero-themed porn": dozens of links to costume sets and cosplay fetish videos, including several starring popular fetish video actress Kikuma Hijiri.

GIGA for FREEKS (thanks Xeni)
See also: "The Coercion" (hardcore bondage video starring Kikuma Hijiri)
Kikuma Hijiri (Dragon CD - Asian Videos)
Previously: Erotic Cosplay