Well, for the record. I called it experimental "play" and I observe that it does not seem to be as much "fun" as heterosexual "play". The pieces just didn't fit the same. Things didn't "feel" the same. If I don't castrate a young bull, those pheromones the real cows put out pretty well dominate the bulls decisions.
But my real point here is that I don't feed my cows from plastics laced in estrogenic chemicals. My cattle have not shifted their morphological measurements or their choice of partners. Meanwhile, I allege, we humans as a society have chosen to shift our entire legal/cultural system to avoid seeing the effects of our exposure to artificial estrogens particularly in our food containers. But also in our carpets, our children's toys. . . . you know, the stuff our rugrats suck on all day long between feedings. . . .