"You are a good, obedient wife, aren't you, Mitsuko?" you ask.
"I am," Mitsuko says, smiling and bobbing her head up and down. "I love you, my dear husband. I'm your very obedient wife, and I want to be with you, I want to be with you and Himari, I want to be with you, I want to be with you and Himari, I want to be with you and Himari."
"And we want to be with you, too," Himari says, pressing her lips to Mitsuko's and giving her a tender kiss. "I can't imagine a better slut for my husband than you, Mitsuko. I love you, my precious, loyal little sister-wife."
"I love you, too, Himari," Mitsuko smiles, wrapping her arms around her sister and kissing her tenderly. "I love you both. Please, Husband, please fuck my tight little ass. Fuck it hard and fast and deep, give me your load and let me drink your cum, please, please, please."
"As you wish," you say, and pull your cock free of Mitsuko's rectum.
Himari grabs a pillow and kneels on it, spreading Mitsuko's ass cheeks and pushing her finger up into her well-fucked rear hole.
"Go ahead, my love," Himari says, turning to look at you. "Fuck your wife's ass. Fill her full with your cock."
You nod and reach for your cock, stroking it slowly as you admire the sight of Mitsuko's tiny, white asshole, slick and gaping, before you lean forward and push your hips forward and drive your dick inside her.
"Oh, fuck," Mitsuko breathes, her body writhing as you fuck her. "Oh, yes, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck!"
"Wow," gasps Himari, her fingers working deftly between her legs, "that's so fucking hot!"
"Oh, yes," Mitsuko groans, her body tensing and relaxing as you fuck her, her ass muscles squeezing and releasing your cock. "Oh, yes, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck, fuck!"
"She's going to cum soon, you know," comments Himari between her own moans, "she gets rather... repetitive when she's on the cusp. It's - ah! - a kind of compulsion."
"I'm going to cum, too," Mitsuko moans, "so close, I'm so close, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please..."
"Jesus," you sigh, bringing your open palm down on Mitsuko's butt with a firm slap, "I know this happens every time, but having to spank my fluffy-tailed wife like a malfunctioning CRT is a little... uh..."
"Oh, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please, please-"
And it is then, as she gasps out her sixty-fourth "please", that Mitsuko has her first anal orgasm.
Her tail, hanging down, thrashes wildly and her beautiful, small face, with her big, green eyes, her perfect lips, and her long, pale hair, is stretched back in ecstasy. Her ass clamps down around your cock, gripping it with a hot, wet, tightness, and her face contorts and she makes these strange, high-pitched noises and her tongue, sticking out of her mouth, lolls around like a dog's.
Then, just as quickly, it's over.
Mitsuko slumps back against the bed, panting and clutching at her head.
"Fuck, that was intense," Himari says, laughing, shaking her head and running her fingers through her black hair. "I can't imagine how you can handle that shit."
"I love it," Mitsuko whispers, her cheeks flushed, her eyes dazed. "It's so much better than I ever imagined. I just want to keep doing it."
"That's it," you say, pulling your cock from Mitsuko's ass, "we're going to have to get you a harness."
"I want to wear a collar, too," Mitsuko says, "a big, metal one."
"You'll do anything," Himari says, caressing her sister's cheek, "for our pleasure, won't you?"
"Anything," Mitsuko agrees, looking at you with adoring eyes.