Wishlist for this game:
Corruption & Hypnotism systems that can increase overtime to cause a variety of problems from needing to masturbate every now and then to straight up inability to resist rape.
Cum inflation systems that have applicable debuffs and needs to be emptied out manually. Light cum inflation can slowly increase lust whilst heavy cum inflation can have a noticeable effect on your movement and ability to resist rape. Bonus points if you can put in a fully simulated environment with dynamic real-time slish slosh mechanics as you're moving around and/or getting fucked, x-ray (both during sex and a constant one) and jiggle physics.
Cum layering system where as you're gettin' splooshed on you'll get gradually nastier and layered with jizz. Makes escape in certain scenarios easier due to slipperiness but also expediates the rape process and adds pleasure faster to you because horny logic reasons. Aphrodisiac cum or w/e.
Parasitism & virus systems... I'm thinking mostly brain parasite things that go into your ear and slowly corrupt you but it can be of the impregnating kind too that would also work. Doesn't have to be biological parasites, it can be like, nanomachines son.
Bigger dicks in general. Bulges galore. Can go from slight pelvis bumps to straight up fleshlight-levels of bulging where it reaches all the way up to the neck. tick boxes can help regulate the amount of bulge. Bigger dicks being naturally harder to get out of rape situations with, of course.
General upgrades to allow the player to survive for longer. More health, more resistance to pleasure, more lives, so on so forth. Possibly even toggles to completely disable the heart system in place of a corruption system that can be managed with drugs or lack of exposure.
Relentless sex systems where on either harder modes or triggered via other means, enemies don't stop having sex with you after they "complete" their sequence, instead just restarting it and continuing to rape you. It's hot to get nutted inside of and then continually fucked until additional nuts have been injected, that sort of stuff.
There is more but they're less important and will probably get put in anyways so I won't bother talking about them. I may revisit this list in the future, I may not. Depends on how the game develops. If too much dumb shit gets put in, I'm leaving or cheating the game anyways.