A little thing in this game that is a big annoyance for me: It uses first person pronouns to put you in the shoes of Robin, despite you having 0 input in any of Robin's decisions or the story itself. So for the sex scenes it will say things like, "Gregor is pissing in your mouth and up your asshole and YOU LOVE IT!" and every time it says stuff like that, I think, "no, actually I don't love this at all."
Also everyone constantly having sex with everyone else in front of you is a turn off that feels borderline NTR at times. I paid for this game but I kind of hate it, honestly.
Interesting, so people do inject themselves instead of treating it as pure porn, and do consider there are NTRs.
To me porn games are there to realise people's sexual fantasy, I wouldn't relate. What happens to the MC has nothing to do with me - Yes, even when the game use 1st person pronouns, or it's a CYOA game - I'm just here for hot sex scenes.
It's actually quite interesting to even talk about RL situations when MCs are dating different guys, completing different "route", fucking with all sort of NPCs, while you don't like NPCs to do the same.
But hey, if you don't like the stuff you can always skip.
It's actually kinda important for playing porn games, cuz the kinks everyone has are very specific and personal, there's no perfect fit for all.