That pack I made was fairly complicated to tag well as the tags Sex, Anal, and Lesbian are essentially the same. The best way I solved this was by using certain criteria when tagging each based on the images, this is how if it helps if you want to create your own packs.
For sex images, I chose pictures that didn't directly show penetration with faceless partners for the most part, so mostly doggy style angles worked or missionary with back view angles.
For anal images I chose images that did showed penetration between the two or after sex images.
For Lesbian images I only showed images that had him and another male from the same series having sex.
While I can't alter the games pronouns usage, this was the best I could in adding a trap character to the game. Your welcome to use this method or not, or wait till someone decides to code it in.