You need to work her into the voyeur world. "Hey Honey, look what I found!" works well, just like you'd say on the cute puppy site. Then lead the discussion, "I could never do that" or "Could you imagine _____ doing this?" Start out with Maya's Pikachu pajamas or Nora & Kiko's different socks fetish. Show her one of the fights, if your wife is the soap opera type, converting to this shouldn't be hard.
Then again, she might hit you over the head with your keyboard! lol