Fuck the devil.

You lead Yin over to the wall though she has difficulties walking. Then, you slam her up against it, pinning her there by her wrists. She looks to you with a delirious, exhausted smile--face flushed dark crimson, loose messy bangs hanging down over her eyes. She's dressed in nothing but the knee-high stockings that she would always wear with that maid outfit of hers. Though this time, she specifically wore nothing but them, and a magical outfit she knew would disappear. Yin is a closet freak for certain.

"You've been such a good girl, Yin."

She takes in a stuttering gasp. Her knees wobble. "I have?"

"I'd like to give you a reward for that."

"Ooh... Master, you d-don't have to do that."

You smile. Then, you release her wrist and reach down to grab her tail instead. Slowly, you caress up the ruby skin all the way to the spade at the tip. When you look to her with it nearing your mouth, it looks like she's going to cum already. Then you reach out and gently flick your tongue off the tip, causing a moan to escape her lips. Then again. You chuckle at how weak she is when her tail is involved before sliding it into your mouth.

"Aaahh, Master~!" She throws her head back and nearly falls, though you keep her properly pinned against the wall.

You roll it around in your mouth. It just tastes like skin, because it is. It's like sucking on her finger. The tip isn't all that large, so you can easily roll it around in your mouth, and tease it with your tongue. With such a simple task, it's amazing just how much it's rocking her world. It must be hard for any girl to imagine what it would be like to essentially have your clitoris able to be placed fully inside someone's mouth in this way, but that's what it feels like to Yin. That's how sexually sensitive her tail is.

Then, you pin her harder. You grope her with one hand. Then, with your other, you grab both of her wrists and yank her arms up above her head, all while continuing to suckle on that tail of hers.

Her body quivers. A stream of excitement rolls down her inner thighs.

You proceed to slide the hand down from her chest, past her stomach, and then you use it to pull up one of her legs, stretching open her pussy for entry. You look her straight in the eyes before pushing your cock up inside her. It's so hot inside that it nearly burns your skin.

It looks to be overwhelming now, teasing her tail and her actual pussy simultaneously. You grasp her body tight and begin with a quickened pace, because after all of this, you're ready to give her everything you've got. Whatever is left inside your balls wants out, so you might as well fill this maid up with every last drop. You fuck her against the wall, and she moans louder than you've ever heard her do so before. Her high-pitched whimpers of pleasure echo off the walls of the bed chamber. Her noises only encourage you to go harder, but before you can near an orgasm of your own, you see her eyes roll back, her body tenses up, and...

"Aaahh, aahhh~!" A cry of ecstasy booms out as she climaxes.

However, you're not done at all. You continue to suck and lick the tail in your mouth as you reach maximum speed. Her body bounces up and down against the wall, and she's trapped there until you're finished with her. By the look on her face, she loves that.

Her mouth slowly opens to a smile, but then she gasps, and yells out, "I'm c-cumming again~! Oh gods, oh gods!"

She's so hot. So cute. You can't hold back any longer, nor do you want to. With a few more thrusts inside, you watch and feel as she reaches her third orgasm, so now's a better time than any. Heat shoots up through your body. You tense up completely. For a moment, you're short of breath, but then... "Aah!" You moan aloud as your body manages to push out yet another orgasm, and everything you have left pumps out hard into her body.

"Y-Yes... Yes, please cum inside me," Yin says between heavy breaths. "Thank you, Master!"

Bucking your hips in a slowly descending rhythm, you eventually cease pushing her up against the wall and you let her tail fall from your lips. Your body managed to cum yet again somehow. You carefully guide yourself back while holding her up, knowing full well that she'll probably collapse if you don't. Then, you reach down, and decide to heave her up into your arms bridal-style.

"Ah! Wh-What are you doing?" she asks, flustered.

"Carrying you to the bed," you reply. Then you lay her softly down onto the quilt. "Is that bad?"

"N-No, but... as your maid, I should be taking care of you."

You lean down to kiss her on the lips one last time. "You definitely took care of me, Yin."

Did she ever. Holy shit I'm tired now. Do I even have anything left. It's like the beach, when I was running on empty, though this time, I have no idea how I managed to have anything left.

She smiles brightly. "I'm so glad."

"I have to go for now, Yin. Thank you. I have to say, you're definitely the best maid out there."

Yin giggles. "I hope so! Because you're the best Demon King."

This time, you're alerted to the squeak of the same door you came in through opening by itself. You turn quickly, but there's nobody there. All you can see is a dark void on the other side. You look back to Yin for a final nod before proceeding in that direction, though you do worry what's next. Hopefully, this will have actually been the final chamber, and on the other side is nothing but a victory party.

I'm never that lucky... Well, after all that I've experienced, maybe I am lucky after all.