Mordecai and Rigby's moms, stretching in latex and a few other articles of clothing.
Inspired by a few other pictures of the characters. I don't know their names, though, since I only saw a few early episodes of the show. It really didn't hold my attention, and I didn't care enough about the characters.
Regular Show is the property of CN.
http://www.furaffinity.net/view/17581899/