There is no ntr yet, it is planned but it might or might not happen.
And i plan to add it more because of the narrative.
For example a succubus that is always horny and might fuck someone if the MC is not around. Or maybe one of the girls is married or have a boyfriend, it is common for them to fuck before she falls for the MC, no?
And again guys, i'm open for suggestions, it's not like i'm making the game based on ntr.
Gross...sounds like sharing or cheating (sloppy seconds), "maybe she fucks others while MC is not around". Ya, that will go over well...not. Sharing/cheating/voyeurism of a love interest fucking others will become a huge mess, if your going with a harem path story (History has shown that other titles have tried to introduce that kind of content. And they failed terribly...ending with a mass exit from their title when it was eventually introduced.)
A harem story usually consists of the main character that will become the focal point for all potential love interests to gravitate to, and not be involved sexually with other dudes as well. (Unless your going to try and appease both sides (the anti, and pro NTR players)…If so, it should be made a totally avoidable choice. But it usually never works out, as history has shown with other project's that try this kind of route for a harem story.)
And FYI, with regards to NTR...that highly controversial tag represents three different sexual situations in the AVN community.
Netori is the complete opposite of the other two NTR kinks. It's a subgenre of NTR that focuses on the protagonist (MC) seducing someone else’s partner, rather than being the victim of a love interest infidelity. (…Netori for me is BEST one of the three, and is the ONLY one of that kink tag that the harem crowd will be accept. And harem fans represent a large group of people in the community. )
Regards.