From source:

Toilet Slave Training

Lily and Odria, now in their new home are to be trained and brainwashed into living toilets

Wearing tight latex bitchsuits that force them into piddlefours and deprive them of their senses and gags that force their mouths wide open. The suit also has long nasal tubes that allow them to breathe. These will become part of their bodies until they've become fully brainwashed.
To help them learn of their new purpose, they are given an intense enema of a thick nutrient-rich aphrodisiatic and antibiotic gel until their bellies are near bursting. Their pleading and moaning cries of intense pain through their open mouth gag are ignored as they're filled up.
Thick tubes are screwed into their open mouth gags, locking it into place, preventing any chance of it coming loose or leaking. The other end of the tube is a massive hollow double bulb buttplug, the plug is barbed, preventing the girls from pushing it out themselves and preventing leaks. This plug is shoved into the other's tight asshole as they jolt and let out moaning yelps.
Immediately, the gel comes out of the tube and slowly flows into the other's mouth, these girls have no choice but to consume the gel, their tongues becoming drenched, tasting the foul flavor of cum, urine and smegma used to help make it. Intense gulping is heard as the gel doesn't let up, forcing its way down their throats. Their moans as the gel makes them wet and horny, they will not receive any other pleasure until they earn it by completing their training.
1 hour of eating gel later, it depletes from their bellies. However, something extremely brown and foul starts crowning from their butts, flowing from the tubes and making its way to their mouths. The instant it touches their tongues, both girls start to frantically flail in vain and let out obscene gurgling. Their feces are now being forcibly fed to each other, shit stuffing their mouths and going down their throats. Sensory deprived, it amplifies the taste of the shit violating their taste buds. This will continue for 7 days, feeding each other their waste the entire time in a vile loop.
Most girls break and become obedient by then. The head portion of their suits are removed and the girls will be tested by being fed a dog bowl of their master's shit. If they promptly eat it, the brainwashing is a success and they will be rewarded with sex along with progressing to other forms of waste training. If either hesitates or refuses, both will repeat the brainwashing process again, continued refusal and feral animal waste will be forced into their mouths as they are repurposed as the limbless septic tanks of their master's barn, permanently