*I know it's a long post, but please read its entirety* Ah! Sorry, completely forgot about this thread! I think you misunderstand. There doesn't need to be "rapey" males or rape figures at all. You could put in place various masculine NPCs and enemies who don't attack the PC with malicious intent on a sexual front. Think about the hoodlums and slavers for example. They weren't rapey, they were just in a tight cinch and did what they think needs to be done to ensure their own survival and prosperity by robbing the PC of their money and/or freedom. If you are uncomfortable with rape scenarios, that's completely okay; it's great, even! That gut instinct will steer you away from subjects that could result in a precarious situation like with Fenoxo's game and incest (a situation that I still question on it's necessity, but I digress). For a few ideas, you could have cuter, disarming figures in catboys if you find masculinity a turn-off; you could have mystical plant-men/boys like dryads; gangsters or mob men; or even runaway slaves! These are all men who would attack the PC not to have sex with them (although that is a likely outcome in defeat), but because they are panicked from a traumatic event, defending themselves against an unfamiliar effect (the player), or are greedy bastards who can smell a credit chit a mile off. Please consider these ideas and expand on them in the future! If it comes down to it, you could open up a submission booth of sorts for more literarily talented folk to try their hand in smut. You'd be surprised what a community of perverts can pull off when prompted! Just an idea.
Trials in Tainted Space actually had multiple incestuous scenarios within it. Mating with the Wyvern on Uveto could lead to incest with your spawn, Kiro had sex with her sister on multiple occasions with you, and (spoilers) you also had sex with your sister; Shade; a good few times if you'd played the game the way most people did. There are a few more cases that I'm forgetting I'm sure, but those are just to name a few that Fenoxo had to redesign to avoid being forced to take down his game from several second-hand digital peddlers like GitHub and Itch.io that he relied on to gain publicity and new players.
Oh, that sucks. I generally dont get farther than the planet with the cows or the one that's basically a junkyard. I tend to turtle, and go very slow, either focusing on trying to get myself looking the way I want, or leveling myself as much as I can before I get board and move on finally.
I also didnt think I had a sister, since the BBEG introduced at the start is your Cousin and the intro character design etc etc makes it like you are a single child. I know banging a 1st / 2nd cousin is still incest.