Because most of porn games are VN, and most VN are male protagonist, hence female protagonist in porn game isn't more common than the male protagonist one
You're not reading my comments. I'm talking about C O M B A T type games. LOL The point I'm making is that the VAST majority of games involving combat are ones where you play as a female and if you lose, male creatures/and or men, stick their PPs into your character's female body.
As a man, I have a PP and I want to stick it into FEMALE bodies. How is is this so hard to understand?
Games like this are for people who must wish they were female and want to get boned by guys, I can't think of any other reason why you'd design a game that rewards failure with that kind of outcome.