English is not my first language, that's why the scenes can look similar. It's hard for me to write things completely different because I'm not that experienced. Sometimes I have a hard time writing anything to be honest. So the settings changes, characters and place changes, but there's only that many ways of how I can write a sex scene. It all depends if the player is dominant or not, so with all the alternatives one scene can take a lot of time to write, even if the player see only one version.
About the mechanics. Some of the later enemies already take into consideration if the player is into their gender or not. Being immune to teasing would make the fight a little bit unfair, so for now I slowly change it that the opponent is attacking instead of teasing. It's not working with everything yet.