He checks he breast implants one more time, concluding perfect success and leaves her alone in her room.
A few minutes later her first master comes in, wheeling in a machine with two larger horizontal dildos. The foreplay entails her sucking him hard and massaging his cock with her large tits, whereas he fists both holes and pisses down her throat.
Afterwards, she has to sit on a saddle of the machine and bend forward with both her legs and arms tied down. Once he makes sure that she can’t move anymore, he switches the machine on, causing the saddle to vibrate and the huge toys taking turns fucking her deep in her pussy and ass. After overcoming the initial shock, sister Mary soon adapts to the rhythm and starts to enjoy the machine.
Her master rolls her towards the bed with her mouth on his cock and instructs her to suck him off. She puts all her focus on pleasuring him, but is unable to ignore the machine going to town on her crotch. After about 3 minutes she has her first orgasm, followed by the next one a minute later. Waves after waves overcome her while she tries to get off her master. Once she finally manages to make him come, he presses a button on a remote and the intensity of the machine is increased.
“That is a good girl. That was the first one, two more to go.”
She slowly begins to understand her task and resumes sucking him hard again. Sister Mary can initially handle the stronger stimulation, but starts to feel sore. She has been fucked at such a pace before, but humans usually get exhausted, whereas the machine can keep the pace forever. Her body helps her by firing out more orgasms, but not at the same frequency as before. While the machine is still full of energy, the cock in her mouth is barely getting harder. But she knows she has to keep going and after half an hour, she is rewarded with her second load. The master pulls out his cock and gets dressed.
“Good job again, but I need a break, honey. I’ll be right back, just let me get some fresh air. But first…”
He gets his remote and sets the machine to a higher level. Loud groans fill the air, while sister Mary tries to handle both her holes getting destroyed by the massive dildos. Luckily, the master can get some quiet peace when he steps outside.
He goes down the hall to a shop for some snacks and takes a walk to the park, where he watches some sisters getting railed by wolves. Oh look, over there is a sister that can walk upright, because her tail is long enough. He approaches them, talks with her master and is allowed to fist her holes for a bit. Then, he goes back inside and washes down his snack with a beer. Ah, there is father John, let’s shake his hand. Great job on the tits of the sister, they look amazing. Yes, he is having fun with her. Oh, father John is busy, well, time to get back to the slave anyway.
When he gets close to her chamber, he can hear that the groaning has turned to screaming. The machine is still going at the same speed as before. Ignoring her screams, he calmly undresses and sits down at the bed, where sister Mary immediately takes in his cock and desperately tries to make him come. The fresh air seemed to help a bit, but it takes another agonizing 15 minutes until he comes into her mouth.
After shutting off the machine, the dildos are retracted, but he keeps her strapped in, so her sire can get a go at her. Oblivious of her pain, he fucks her as hard as usual and enjoys coming in her mouth three more times.
After the deed is done, the master jams the tail plug back into her aching ass and releases her from the machine and leaves.
Just like last time when her breasts had to heal, her masters focused a lot more on her pussy and ass for the next two weeks. At least once a day, someone used a machine on her. Her holes gradually got used to it, but there is only so much training that can prepare for an hour of constant thrusting.
However, not every machine was just an extended fuck session. Some of them include puzzles.
One day, after making her master come two times, she gets to fuck a brother. However, when she deepthroats him, he chokes her out with his cock in her throat.
When she wakes up, she finds herself strapped onto a machine, unable to move. Once the dizziness fades, she realizes that she is sitting on a saddle, leaning forward onto a metal box with two holes, into which her tits are extending. Her hands are bound behind her back. She tries to pivot her pelvis, but quickly stops when she notices that it pulls on her clit piercing, which appears to be attached to her seat.
“Ah, my little slave is awake.”
She looks to the left and sees her master, lounging in a chair. He presses a remote, causing the seat to vibrate pleasantly under her pussy.
“Let’s play a little game. Your arms will release when you have come five times. At a press of this button, the machine will start driving a flexible dildo into your ass at a pace of 5 cm (2 inches) per minute. What is your current maximum in depth?”
“About 72 cm, master.”
“That means that you will reach your limit in about 15 minutes. So, you better, hurry.”
He activates the button on his remote and she feels a dildo pressing against her ass, very slowly. Sister Mary does not lose a moment of thought and closes her eyes, focusing on the vibrations from her seat. Don’t think about getting pierced through your ass, just come. The first two orgasms are reached after two minutes already, but her body slows down afterwards. After five minutes, the dildo is 25 cm (9.8 inches) inside her ass, but she just manages to come only the third time. Her fear of the machine progressing without stop makes it hard for her to relax. She gets a fourth climax 2 minutes later, but only at the 10- minute-mark can she push herself to the fifth one. The toy is 50 cm (19.7 inches) inside her colon and only now are her hands released.
She tries to get up, but her tits and her crotch are still stuck to the machine. With her hands now free, she feels around the box that is holding her tits, until she finds a number pad. She needs a code. Where is the code? The master points to the side.
“Maybe that jar over there can help. You are a bit behind, so better hurry.”
The last 10 minutes she had already seen a glass jar to the right of her filled with 1.5 liters (0.4 gallons) of cum, but did not know what she will have to do. Only now she sees that there is a straw extending out the top. Having a good idea how these games go, she grabs it and starts drinking as quick as possible. The cold liquid is stale and must have sat around for a while. Just an hour ago, she had to drink a lot of piss, making it hard to stomach more. But she keeps going, albeit slower.
When the jar is almost empty, she can see that white numbers drawn on the side of the jar start to appear. The code is on the jar! But she can’t read it, with the numbers fading in the white liquid. She immediately speeds up again, ignoring her stomach gradually revolting, while her guts try to accommodate the flexible dildo, which is already 60 cm inside.