its optional

Some idea from the old game "corruption of champions" https://github.com/herp-a-derp/CoC-Alpha

Lact aid: stimulate lactation

Lust potion: get in rut

Ovi Elixir: accelerate to lay eggs (if possible!)

Succubi’s Delight: larger balls (thus more cum)

Can Rack2 have something like that? (functionally similar)

PS hope to have more chemicals on transformation either!

A clothing store next to Rack and that every day there are different clothes and you can pose with the clothes on at any time

I'm sorry if this sounds awkward because I translated it from Spanish to English on Google Traductor xD

Magic is a type of science... Right?

Pig Hole = plug with the middle missing, so the person plugged can be fucked with the plug in. Both are size play, humiliation and denial things, obviously; Fleshlights anally could also tie into gender play.

When edging or denying a subject for an extended period of time , they should start to beg or plead automatically. If they're more dominant they might try and hide their desperation , if submissive it would be outright. 

Ruined orgasm should be a fetish (main , not hidden) sort of used as a punishment in terms with denial or edging as well.

For now cubjects can be iflated, if you cum inside. However, after this nothing happens, and they just sit with their stomachs inflated. It would be nice to add some sorts of devices to empty the stomach. And / or to make sure that the subjects did not keep everything inside, and the sperm flowed by itself.

A series of rack types which support multiple subjects would be great.  See the cobondage & forced_partners tags on e621 for some great examples.

Make the cum look somewhat viscous goopey, and webbed (kind of like a creampie) and dripping slowly out of the orifice. Also the perimeter of the orifice should be wet-looking too.