I don't really have a lactation fetish, its just that me and the guys in my old division used to have a little game we'd play called "I'll give you a buck if..."
and complete the phrase with doing something outrageous.
although in the interests of science, I did sample my wife's milk when she was nursing.
there's another fun game you can play with a friend called "Who would you do?" this was taught to me by a woman by the way.
you offer someone two names that both of you know, and that person has to specify which of the two they would rather sleep with. answers are required, no dancing around and avoiding.