A tank full of Aphrodisiac gas connected to a mask that fits the subjects. The gas constantly delivers the gas into the subject, making them extra horny

that injects cum inside the characters ass or vagina doing infinite creampie

i think there should be some easter eggs and cheat codes discover-able to the players, sometimes dedicated to those who donate $100 a month on feks patreon.

put sliders for how much each of them should be... wobbley

A shop in which you can buy perhaps your favorite clothing, hoodies, turtle necks, booty shorts. And perhaps giving the shop a hidden agenda now that its so close to the Rack facility, makeing them sell sell sexy costumes and other clothing for your evry Racking needs.

Wouldn't be neat to be able to expand or shrink a Partner's characteristic by chemicals?
Like an injection to swell up the balls, or the ding dong or the tits. Or maybe an injection to increase Body Fat or Muscle of the subject. 

In First Person mode, the snouts of the character models usually clip through the camera; Could you make the head of the character that is being spectated invisible to clear this error?

I've noticed that one of the recent updates changed cum behaviour and textures. The previous one was a lot better, because of the volume it had when spilt on body/floor and more natural colour. That one we have by the moment looks more like simple decals and leave just 2d textures. I'd like to see how many people agree with that, just in case.