So as of 1.1.10, Test Subjects can have Positive or Negative preferences to different partners, experiences, and interactions.

My suggestion is to expand this into different tiers, up to 7.

From most liked to most disliked, these tiers would be Favorite, Love, Like, Indifferent (could also just not be listed in a preference inspection), Dislike, Avoid, and Hate.

Currently (24 Feb 17) Positively-preferred things will get the subject closer to orgasm faster. Indifferent things still stimulate, but not much. Negatively-preferred things don't do anything.

A related suggestion to the above would be to make it so the more liked a thing is, the faster that thing will bring a subject to orgasm. Things the subject is Indifferent to won't help towards orgasm, but may still slightly build Arousal and Anticipation. Exposing a subject to Negatively preferred things would have negative effects, instead of just doing nothing. These effects could include pushing the subject away from orgasm, lowering Arousal and Anticipation, causing pain, extremely affecting Anger/Intimidation, and in the case of Clients and Volunteers, cause them to quickly terminate the session. The flip side to exposing a subject to more-disliked things, especially Hated things, would be a very large production of Scalium.

One final suggestion to build onto this (assuming there will be a way to inspect subject preferences) would be to never show Favorites and Hates, instead showing them as more-neutral tiers on inspection. This would require the player to still ask questions and find out things about what the subject enjoys and doesn't. You could instead have inspecting Favorites and Hates locked behind a late-game, expensive upgrade to the Personality Inspector. Another option, or perhaps addition, would be having to spend some kind of resource to find Favorites and Hates, or maybe just have some kind of resource spend to find out preferences in general.

The lab stuff is already decent as is with the oral opportunities, but hear me out. A milking table. Maybe two versions.

Version 1 is for rimming. And more or less a chair instead of a table. Subject is sitting down, and their junk (balls, penis and ass) is exposed and ready to get "experimented" on. But with a tongue, lol. Maybe with the player just casually sitting back with their arms crossed?

Version 2 is for blowjobs and ballsack stuff. Subject is lying face down, with the sack/penis floating about. Again, ready to be "experimented" on. While maybe the player is on their knees, with the ability to masturbate as well?

the list as following is what i request be in the game:

lactation, impregnation, oviposition, breeding, birth, and feral

i know that you have already given us your answer to a lot of these however i am strongly encouraging these features not only for myself but for the furry community 

thank you for reading this  

there should be pauses in the dialogue with the subject, that is, as if time stopped, so that the robot can explain without being interrupted by the subject

it would be cool if you could make any music play while interacting with subjects or just relaxing

Goats and sheeps sounds great, and put things on horns, like rings or claws

There's a growth chemical but no shrink chemical.

Seems like an easy thing to add. 

The video updates for this game are always really well made, and do an excellent job of showcasing what the game has to offer. Especially the latest one ( the one from about a year ago, the 2.6 update trailer), that's a legit professional level trailer. Now obviously fek doesn't need to out out one for every single update, especially if it's only tweaking mechanics, but fixes etc, but say if next update is infact the big sex toy update, I feel like it could do with another trailer, to show off all the new toys, and get people hyped for the update. I'm sure feks already planning on doing more video updates, but in case he wasn't, I wanted to bring it up.

Exactly what it says on the tin. The ability to relocate a subject from one rack to another within a single session would be a nice and simple quality of life improvement.