This is the 4th installment of Kate's New Toy Box. Continuing on her journey of sexual enlightenment, Kate Suffield goes out for another night of peeping. What she sees blows her mind in ways she can't even imagine. At first believing she was looking in on a bizarre science experiment, she soon learns that Claire Osmet was a true master in the fine art of Furry cosplay. Join Kate on her first foray into the world of Furry as Claire dresses her in a tailor made latex Mare costume to participate in a contest for $10,000.

Clues are given, but the identity of the mysterious Mr. E. eludes Kate as she receives yet another letter instructing her to perform in a glory hole at a nearby sex shop. Despite the risk of being seen by people that know her, Kate cannot say no to Mr. E's every demand even though she has never met the man.