when you play the clients are random and not what you are searching for, normally 1 client from the 6 on 2 to 3 times searching for clients is what you are REALLY searching for. we need an option for making our test subjets and in a future case to use them as staff members of the lab.

Currently the camera seems rather limited (behind the character). That can make it difficult/impossible to get the preferred view.

Also it would be better to be able to adjust the view by holding the right mouse button and moving the mouse (compare to Yiffalicious). Makes it easier to change the view with only one hand.

Being able to do multiple actions at the same time, for example kissing

and touching yourself while riding someone would be a great idea. Being
able to automate one action and manually focus on others would be an awesome feature that would give the game a lot more variety.

I haven't seen this anywhere, and having had the idea I don't want to risk forgetting it. So I'm talking stuff like this https://e621.net/post/show/897540/2016-anthro-anus-belly_scales-bent_over-big_butt-b But maybe you could have the option to crank it up or down, and change the color. Maybe there could be a species, or it is just a rare thing that anyone could have. You could take the dna, enabling you to put it in other subjects. Perhaps their cum/fem cum could glow as well. Making the colors match could be optional, allowing the player to have any combination of them. As an offshoot, perhaps it could affect lactation. Affecting color and possibly flavor for both.

i suggest make sort of massage table (with a hole) for client to rub them and etc. for this get more money or do experement on subject without noticing behind there back/

Not just genitalia portals, but large ones so you can have for example half a character (butt) coming thugh the wall while he other half (torso) is on the same side

So, I'm a huge oral (mostly rimming fanatic) and I think the anus area should be polished up. Right now it's just a pink "dot". Pretty boring. I think you should be able to like, maybe customize the tightness/loosness of it, as well as the color.  So if you want to select a dragon with a green anus, and it's loose, why not? And I don't mean it in a gross way. Some anuses are tighter and some are looser. If you're into rimming, you know it's hot when you see that particular area go with the motions of the tongue 😎

Since it looks like Rack is getting an update to fluid physics, why not add more fluids to the game?

The hymen is a membrane found at the outer opening of the vagina, and is typically torn by careless lovers, emitting mild amounts of blood.