You need to modify the hunting automata

There are many benefits to being a kitsune, one of which is powerful illusions and other magics. All told, it's easy enough to slip into the manor of Lord Ardsworth at night without being detected. From there it's also simple enough to find your way to where the hunting automata are kept when not in use, mounted in metal racks that slide into the wall for ease of storage.

You wait a moment to make certain no-one is coming. Stretching your illusion to also hide the open racks as well as yourself would be child's play, but you'd like to know that you have to do it before you start - and there's always that awkward risk of some fool walking into the thing your illusion is hiding from them. It's never happened to you, fortunately, but some fae you met once told you some of their own horror stories and it left an impression on you.

Fortunately it sounds like no one's coming to this wing of the manor at this hour, so you're free to do your work uninterrupted. A delicate touch of magic is enough to unlock the drawer, and you grab the latch and pull it away for the wall, revealing one of the dormant automata.

It's shaped roughly like a hound, albeit more in silhouette than actuality. Metal struts are linked with a faux-flesh that keeps the elements from damaging internal mechanisms. Limbs end in paw-like structures, but minus any claws - just a coarser leather-like material whose purpose is to provide traction more than anything. The head is probably the greatest divergence, however, appearing more like a tapered cylinder than anything with two small slats towards the back for ears. It's designed to be able to pick up on the same sort of cues that a normal hunting hound would, and then a program in a rare magic core in the head translates that into pursuit. Much more expensive than normal hounds, of course, but in exchange they can be boxed up like this instead of needing the attention and training of a normal hound - though you're given to understand that the lord does still regularly involve himself in the machine's maintenance.

Of course, as they are now the machines are programmed to just slam into the fox they're chasing without any particular concern for the fox's well-being. In fact they're specifically set to attempt to cause a broken neck and "clean, humane" kill without damaging the pelt where possible. Which, while at least a nod to trying to avoid cruelty in the hobby, isn't something you'd particularly like to experience yourself. You happen to like your spine intact, and you doubt that's going to change when you give up your own autonomy. Can't be a good sex toy if you're paralyzed and numb or worse, after all.

So you'll need to make a few changes. And given your role is going to be "fuck-fox" and not just "fox", you've had a few ideas about how to adjust the exact purpose of these machines to something more appropriate too. You gather your power, foxfire lighting on your tails as you do, and set to work.

The physical changes are the most difficult, so you start with them. An eight-tailed fox could make or change something "physical to the touch", or even a five-tailed fox who knew what they were doing, but it requires the power of a nine-tailed fox like yourself to make such things permanent rather than a continual casting. Which is good, since you wouldn't want the changes you'll be making to come undone if you lose focus.

You lighten and reinforce the machine's structure, so it won't have a crushing weight while retaining its ability to push through branches and brush. The range of movement on the legs is increased, allowing it to jump and reach higher. Then you move between the hind legs, where there currently is a smooth metal plate. You place a hand there and set to work building in a new mechanism, disregarded as useless for hunting normal foxes - but for a fuck-fox, it'll be the perfect way to pin a catch until the hunter arrives.

A dildo is built in place. Good size, long, thick. Vibrates too. The perfect toy to drive a fuck-fox out of her mind with. You pause for a moment, wondering if that might be enough, before deciding to give it the ability to produce fake cum to top the whole thing off. You study your new creation critically, looking for any flaws that might hinder its use. You give it a slightly larger range of movement so it can be used at more angles, set it to be able to lock in an out of the way position when not in use, and blend its color and shape with that of the automata a little more so it would stand out less. Then you can't quite resist anymore and take the whole thing into your mouth. You draw yourself up and down the fake cock, running your tongue along it both for your own pleasure and to check the taste and texture of it, making minor adjustments as you go. You have to restrain your disappointment a little; it's just not the same doing this on your own without any other movement or contribution. You console yourself as best as you can with the thought that soon instead of doing it yourself you'll be having it done to you.

After a good minute and a half you draw slightly back and use your power to cause it to spurt the fake cum onto your face and into your open mouth. You let it sit there for a moment before using your hands to move the viscous liquid on your face into your mouth and swallowing, satisfied with your work. Next you crawl out from underneath the machine to reach its "head", where the magic core is. This work is delicate, but much easier power-wise - you're just giving it a new program set. You have to teach it what the new kind of prey it will be hunting looks like, how to find it, so to start you pull your kimono off of your body and stand before the machine naked, turning to make sure it gets all angles of you. You set that image as "fuck-fox" in its memory banks. For your smell you draw a hand between your legs and present your pussy juices to its sensors. Some less readily-available smells you handle as best you can purely through programming via magic. Similarly for sounds, you breath and pant into its ears but your illusions are better for sight than sound if you don't have direct access to the person listening so you have to lean on your magic some more.

Then you program the knowledge of what to do with you. Most of it is simply taken directly from the programs for hunting normal foxes, everything to do with the chasing and guiding the lord and so on, but for the catch you make some adjustments. That if the lord is near simply stopping you for his pleasure is the aim, be that through surrounding you or pinning you, but that if he's further away something more is needed. Instructions on how to use the toy you've attached to it are set, how to make you a cumming mess of a catch. A few other miscellaneous bits, like a command to make it do that to you outside the hunt should the lord be so inclined and a distinguishing between when you're "being hunted" and when you've "been caught", that being once the lord's reached you, done whatever he wants to do with you in the outdoors, and started leading you back.

Finally, everything with the machine is ready. You pull yourself back onto your feet and push the rack back into the wall, locking it again once it's in. Then you go to repeat your work on the other two hunting machines. It'll take you a little while to get this settled, but it's important that it's taken care of and it'll be worth it in the end.