OK I found it : Kigurumi
 

Some weeks ago, someone posted a pic like these here. Always wondered me if it was some weirdo who invented it, but its way more then that I know, normal and erotic stuff as well. Japanese ppl are weird sometimes, anyhow found these. Thought you might wanna see.

http://www.yuriskigurumi.com/
http://www.mightylady.net/