Placeable cameras[regular and concealed].

If a subject is nude while it knows it is being observed by a camera, it can gain pleasure via the exhibitionist fetish.

VR-glasses are a wearable item that show the subject wearing them the view from a camera, allowing it to gain pleasure via the voyeurism fetish[especially if the camera in question is a concealed one]. Which camera's feed the subject sees is determined by the player.

If a subject is wearing VR-glasses, it cannot see its local environment(duh).

If the player wears VR-glasses, move the view to whatever camera's feed is shown.

[the cameras' views don't have to be rendered unless the player is looking through them, in which case the player's 1st/3rd person view does not have to be rendered (especially since rendering multiple views in realtime is performance-heavy, and might be nearly impossible to implement depending on the underlying game engine)]

Optional 1: "streaming" a camera feed to earn a little bit of money on the side

[perhaps in the form of minor goals(that might not be what the subject likes)]

Optional 2: camera contact-lenses

A wearable that records/streams the point of view of the wearer. Counts as concealed to any subject that couldn't see them being put on.

A rack upgrade that automatically keeps chemicals in the subject's body at the desired[user-controllable] level.

If there is not enough of a certain chemical in the subject's body, it will automatically inject more, provided the user has the required chemical.

This is especially useful for chemicals that wear off over time.

If a chemical and it's nul-form have effects that cancel each other out, allow the user to set a minimum and maximum level:

If the subject is below minimum level inject the chemical, if it is above maximum inject the nul-chemical, do nothing if the subject is in between.

To me personally Ma'am isn't as sexy as Mistress , the male preference get's Master so why not \,._./

Can you add some monster girls to game like nekomata (Cat Girls) and others, this's totally counts as furry but not fully zoophilia which is liked by a big fan base and it will be really awesome if you at least 1 monster girl specie to your cool game.

I would be good to have the option of painting the subject's claws/nails of any color and maybe some patterns

Once you've got a couple of coolers, a full tank of Specimen takes like, 8 minutes to process, and you can't be doing research during that time. I'm also not sure how it interacts with when you're actively "experimenting" on somebody.

That 8 minute gap in gameplay is kind of a bummer, and spoils the pacing. Just some way to upgrade the processing time would be great.

It would be pretty cool if there was an online multiplayer feature where you could play online with friends.

Different sliders for tongue length, width, height.

or DDLB, CDLG, CDLB and so on. Just a button that will make them call you mommy, daddy stuff like that.