YAF delivers. Ironically enough, my BGM for this was Nantoka Nare.

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[X] "Actually, there's another thing."
-[X] "What you promised me after our fight."

Ehh. Plan failed. That's all there is to say. Though the way she was examining them suggested that... She might recognize the pattern, in the end...
Disappointed, you put down the basket. Yuuka continues to stare at you with the same blank face. What's going on through her mind, acting like this? All superior, like if she was some sort of higher being or... But then again, she IS a youkai. An old one as well. It's only natural she would feel superior to such fragile beings as humans. After all, she must've witnessed many generations rise and fall, then disappear into oblivion...
With unexpected patience, she keeps silent.
It's almost unpleasant. This silence.
"Actually." you try to sound relaxed "There's something else."
"I'm all ears."
Her eager words contradict with her cold expression and voice. But, there is something she promised you, and has yet to redeem her words. Even though it may sound selfish, bah, pathetic even, still, you have to ask. Even now, when you're all alone she's so cold, it's almost like the fight earlier never occured...
But the slight pain in your cheek says it did. Then, her words as well...
"There's one thing... What you promised me after our fight."
You brace for the worst. For example, getting your face caved in. Or being ripped to shreds. But, to your suprisement, none of these happen.
Instead, Yuuka only narrows her eyes.
"... all the same."
"Huh?"
"All of you, all the same. I lose myself for a bit, and next second, you start to think you're god-knows-what. That you have right to access my body as you please."
Ugh. This is dangerous. Her aura is hostile enough to make cold shivers run down your spine. But, it was her who... And the GLAND... Doesn't it work anymore? She was practically all over you back then, so why...!
An impulse shants throughout your entire body. But it's too slow. Too slow to avoid Yuuka's hand, coming straight at your face.
"Wh--!"
Like a pair of unnaturally strong pincers, she closes your head in steel grip. You can't even breathe like this, let alone speak out.
And she, with the same, stoic serenity, only bends down a bit.
Then brings her face close to your chest.
You'd hold your breath if you weren't already. All she does is close her eyes and keep silent.
Quiet sniffing noise.
"I have no idea what this is," she speaks up "But I'll let myself be swayed. Smells nice."
Her hand slowly lets go of your face. Air! Again! Your lungs cheer out in relief, while your hands...

You can't move your hands.

Nor legs.

In panic, you look down, only to discover...
Brown, slightly green vines entangled around your limbs. Cutting into your skin. Not deep enough to cause bleeding, but it's painful nonetheless. As if they were tentacles of some living being, they pull you back and down, into half-sitting position, but still above the ground. Like some kind of grotesque chair, growing straight from the floor. Only chairs don't usually hold onto your calves and wrists.
"Yuuka, what the--?!"
You start screaming, but immidiately shut up after seeing the sight before you. Which includes smooth, naked back of a green-haired woman. Even from this angle, you can see her breasts, as she reaches down to her skirt and unbuttons it, letting it fall to the floor. The only thing's that left...

But she lets it stay on. Instead, she turns to you with the same superior expression, only more... seductive than before. Or is it only an illusion brought forth by the breath-taking spectacle of her healthy bust. Enormous. That's what comes to mind. Those hundreds of years of living surely had their effect on the size of her breasts.
You can't let out a word. The shock is too great to shake it off so easily. First this, now that, what comes next?
You didn't have to wait long. Giving you that superior smile, Yuuka closes in on your restrained figure, and leans against your body. The vines holding you up don't move an inch, only making the pain stronger as Yuuka puts the whole weight of her well-developed body on top of you. Her breasts press hard against your chest. Thich is turning on in itself, but...
"Yuuka, not here--?!"
Again, your words get cut off, this time by Yuuka's tongue, which she violently forces inside your mouth. You can only comply to her moves, as she begins to twirl it around. Trying to response, you only discover that you can do nothing to change her movements. Only surrender and comply. She's simply too strong.
Slowly, you start to run out of air, but Yuuka doesn't retreat for even a second, caressing the inside of your mouth with violent, abrupt licks. You can feel the saliva overflowing and forcing it's way out of your mouth, dripping down your chest and shoulders. Disgusting? No, hot as hell. Only if you could catch a bit of air to...
Then suddenly, she pulls back, making you choke on the saliva and cough violently. You spit out the remaining amount, clearing your mouth enough to speak.
"Yuuka, what the hell are--"
But she doesn't listen. Leaving a trace of wetness on your chest and stomach, she pulls down your pants. Without remorse, without hesitation, she grabs your erect manhood, and starts stroking it with moves so fast and strong it hurts. Why she... That damn...!
You try to struggle, only to have the vines cut even deeper into your skin. If it's like this... If it's like this... Then, isn't she basically raping you?
But do you have the right to complain? You were the one to bring up the matter, so now...
Suddenly, the warmth around your shaft grows in intensity. Something wet squeezes around it, your hips jerking up in irrestistible response.
Before even properly warming up, she has already mounted you. Her walls, juices, fast slides, all makes it so pelasant, but at the same time, the pain...
Not good. At this pace, you're going to come too early. Even if she's the one taking initiative, even if it's such a violent one, you still can't just let her be the unsatisfied one. At least that...
The mocking grin never once disappears from her face. Her hips, as if completely independant from the rest of her body, slide up and down, making obscene sounds with each move. Bad. Bad. Bad, bad, bad! Her rough treatment, her breasts, bouncing around, her juices, dripping down your legs, and her warm insides...
You can't control it. Surge of white hazyness seeps into your thoughts, your manhood throbs violently, before...

You almost choke on your own saliva when all those feelings suddenly get cut off.
Because, lifting herself up a bit, she grabs the base of your shaft and squeezes painfully.
"Not yet."
With this cold statement, she begins to move again.
It's almost like not being able to breathe. Not being able to do something such basic as... That damn woman. Let it go. LET IT GO!
But she doesn't listen to your mute protests. Only narrowing her eyes, she continues to absorb the pleasure of riding your now sore manhood.
This is shameful. Pathetic, even. Despite her being just in front of you, you can do nothing to make it stop. To make her let you come as you should have. Pain. Pain. Pain. Only pain. And inability to resist.
"D-Don't..." you manage to pant out "Underestimate.... ME!"