The woman turns when Sinnah appears and sends out a brief and gentle pulse of some sort of sensory magic.

She calls out a greeting in an unfamiliar language and waves back. Then she conjures an illusion showing the outline of two people walking through the portal and then herself appearing and then Sinnoh dispelling her magic while the outline of the other person remains invisible.

(Nope she is going to go be on a roof now!)

"Hey, yeah, pretty much."

She doesn't have natural felicity with kitsune illusions. That's okay because she can do a much more complicated wizardry illusion, piloting it with twitching fingers. It's all blocky shapes but it shows - two cubes with triangle 'ears', one white the color and one white the skin tone, on a background of a forest(?), then a circle appearing, then the cubes talking to each other and then going into the circle, then the cubes walking through rainy cliffs, then going through another circle and being in the city.

...White cube-with-triangle ears makes noise and squarish blocky shapes appear. This-person-colored cube makes noise and squiggly round shapes appear.

So they're probably not lucky enough to have a shared language then.

She adds the language symbols to her illusion then splits it in three. In one she's surrounded by small illusions designated as such and gradually the symbols get more similar.

The second fades in and out a little bit it shows Sinnah doing something and then the symbols being the same.

The third shows the woman stepping over and touching Sinnah and some sort of energy flowing into her and then both of them holding some sort of object before light is exchanged between the two of them and each starts speaking a mix of both symbol types.

Oh, they'll just give her novel magic? Absolutely. Yes. Option #3 please, she points at it.

Is this possibly foolish, playing with unknown energies of a recent conquerer's design? Yes. She does not care. This is a woman who would become a cleric of Nethys very quickly in some other timeline.

The woman steps forward and offers her hand. After Sinnah takes it the woman channels energy into her body. If Sinnah is very attuned to these sorts of things, she might notice that not all the magic is coming from the woman, some of it is channeled through the woman. She might also notice that the other magic around the woman weakens a bit as much of it is channeled to her. The experience of having the energy channeled into her wants all her attention though so she probably won't.

The magic spreads out though her body and her soul; from the depths of her stomach to the tip of her tail and the ears at the top of her head. As it spreads, it carries a warm soothing feeling washing away any little bits of stiffness in her muscles and doing a little for any deeper injuries she might have suffered. It tries to carry her attention with it; spreading her awareness through her whole body in a way that would stretch most people's attentional capacity but somehow doesn't. And then somewhat after it encompasses her whole self a critical point is reached and something deep within her soul shifts. It feels a little like an ignition or perhaps the blooming of a newly planted flower. And suddenly all the magic that's been flooding her stops being other and becomes hers.

The woman's magic reaches out to steady her just in case.

The thing about kitsune bodies is that they are only maybe 75-85% really really real, a detailed and convincing facsimile of actual matter and biology built upon a bedrock of dream magic wrapped around soul.

The moment to moment physical experience of being a kitsune is remarkably smooth and pleasant; Tiny injuries and aches and pains aren't really a thing that happens to them, mostly, unless they're the pleasant-reminder-of-exertion-or-bondage kind. There's very little to mend on that front save slight muscle strain in the hands and legs, and a chipped nail, and some light tobacco withdrawal.

She's obviously watching the energy with her eyes the whole time, via Arcane Sight. When this process completes, she immediately attempts to manipulate it in the same instinctual ways she manipulates Will to cast wizardry spells- Pulsing in controlled beats at different parts of the body, different intensities, in carefully timed on-off bursts.

Once it's clear she's not going to fall over the woman releases her hand and steps back pulling the supportive magic with her since it wasn't needed.

The new magic responds to her will but she doesn't seem to have hit on the right pattern or mechanism to make it do anything in particular. In its base state and in the absence of any apparent injury or deficiency it will simply reinforce the areas she focuses it, increasing her durability by a small amount in a fairly unstructured way.

It can extend outside the body. Let's see if she can create fine structure and sculpture with it. Can she disconnect a portion from herself entirely? Can she make it fractal? Can she sculpt a spectral fox out of it? (Sinnah is only passively aware that this woman is still here).

Disconnecting it entirely causes it to destabilize and return to her. The limit on how complex a pattern she can make is her attention which seems to stretch at least a little further than it did before. If she can fully visualize the fractal or fox pattern she wants to make she came do it but the raw form of the magic doesn't do anything in particular upon exposure to the air.

She might manage something simple like creating a bit of light, or heat or force if she's trying a lot of different possibilities. The trick to make it do things is changing something like the texture of the magic. Certain patterns of raw magic can also serve as filters to change the texture but she's unlikely to stumble on them by chance.

Well, not in the first five minutes, no.

Acknowledging nod to her benefactor after a little while.

The woman nods back then conjures four small illusions one above the other three. The first is just a replication of the two of them with different symbol sets. The three below all show them holding some sort of presumably enchanted object but they differ in what happens next. One shows Sinnah passing her symbols to her benefactor. The second shows the reverse and the third shows an exchange.