Halloween costume - I agreed to wear it but is my GF pushing this too far?

If you want to have any chance at the big prize you really do need to get rid of all your body hair. A professional waxing is really the best way to go. You said you feel exposed in the costume. How exposed to you think the girls in the Playboy Clubs feel? Just remember to invoke the basic rule from the Playboy Clubs: Look but don't touch.