weird sexual fantasies

How many people here have had weird or taboo sexual fantasies?

When I was younger, I was obsessed with what I now know are sexfights either girl-girl or girl-guy. Except in mine when they lost, man cumming or women cumming (or being sufficiently stimulated), thier boobs or penis would become smaller. Likewise when they won it would become bigger; except some people would be capped depending on how much they'd lost in the past. Also, people would be more "powerful" at winning depending on their experience/skill and size of their penis or boobs. There was a complex set of rules. I could possibly make an online novel out of it.