Correct, the game is primarily a male to female (w/ vagina) game and is pretty much built around experiencing MtF TF content.
Though if you wear the cock ring, there is some limited support for player as shemale/herm in some chapters, there's not much in the way of content there. Also you can get a horsecock. But most scenes are designed for player as receiver vaginally. That said, if cocked-player content is your main criteria, I don't think I would recommend to purchase access to the game since there's just not that much of player w/ cock content here, IMO. It's definitely MtF focused.