Part 3 of Toilet Slaves Scatology - Enema Mania picks up where Part 2 left off, with the two male slaves kneeling before their mistress, Lady Mistress Kagome, as she prepares to administer an enema to each of them. The first slave, who goes by the name of Tim, is nervous but excited, looking forward to the rush he knows will come from having his ass filled with warm, nourishing water. His friend, Jerry, on the other hand, is terrified of the thought of having his ass stretched so wide and full of liquid.
Lady Mistress Kagome begins by placing a large rubber bag over Jerry's head, cutting off his breathing and making him hyperventilate in fear. She then inserts the enema nozzle into his asshole, slowly pouring warm water into his intestines until his belly is distended. Jerry whimpers and cries out as the bag inflates inside him, making him feel like he's about to burst. Meanwhile, Tim watches eagerly, his cock throbbing in anticipation of his own turn.
Once Lady Mistress Kagome is satisfied with Jerry's filling, she moves on to Tim, treating him similarly. As the water fills his asshole, Tim feels a wave of pleasure wash over him. He moans loudly, unable to contain his arousal. The feeling of being filled up and the knowledge that his master will be satisfied with his obedience are both incredibly arousing to him.
After both slaves are sufficiently filled, Lady Mistress Kagome decides it's time to let them relieve themselves. She instructs them to choose between sitting on the toilet or squatting over the edge, as they usually do when taking their daily enemas. Both men opt for the latter, eager to show their submission. As they begin to release their waste, Lady Mistress Kagome watches intently, enjoying the sight of their creamy, pasty feces slipping out of their asses into a large bucket below. The smell, although foul, is intoxicating to her.
As Jerry empties his bowels completely, Lady Mistress Kagome tickles his prostate with a finger, causing him to release an unexpected jet of urine that splatters onto the floor. She laughs cruelly, telling him he's hardly fit to be her slave if he can't even control his own body properly. Jerry grovels in shame while Tim follows suit, emptying his own bowels and releasing a stream of wet, gassy farts as well.
Feeling satisfied with their performances, Lady Mistress Kagome moves on to the final act of humiliation: forcing the slaves to drink each other's waste. First, Jerry is made to drink Tim's dirty water, his nose pinched shut as he struggles not to gag on the vile mixture. He gags and chokes as it fills his mouth, tears streaming down his face from the disgust and embarrassment. Then, it's Tim's turn to consume his friend's filth.
As the two slaves sit there, covered in their own waste and each other's filth, Lady Mistress Kagome explains that this is their punishment for disobeying her orders. They must learn to take pride in their dirty work and find pleasure in serving her every need, no matter how degrading it may seem. She reminds them that they are nothing but toilet slaves now, belonging only to her and her desires.
The scene fades out with the sounds of slapping and moaning as Lady Mistress Kagome continues to punish her newly acquired toilet slaves, their obedience forever etched into their minds.