Yandere Dating System

For the next several days, Rumi had been busy contemplating the arts of seduction. Having zero experience in such a subject, suffice it to say she was stuck. Her mother and Chisa were capable of seducing men just with the turn of their heads. As for Rumi, she'd never had to. While she didn't consider it the same as "seducing" men, boys had always approached her first just based on her own good looks.

Hence, the zero experience. 

So, how did one seduce men? 

Rumi employed outside help and asked her trusted English teacher, the vivacious and worldly  Mrs.Mathews.

"You practice yoga, right? Do that, but naked. Obviously, in front of him." 

Rumi marveled at the woman. What genius! Was this the wisdom of an adult?

Anyway, Rumi took her advice to heart and planned it all out. For the next couple of weeks, she started sleeping in class, playing around, and generally started acting out a little. Of course, she played hooky several times more than she used to. 

When her grades started slipping, she was called to the principle's office and after a short, disrespectful talk it was decided that her mother was going to be called for a private meeting. 

Chisa's mother used to be called for a parent-teacher meeting often, so Rumi knew this was how it'd play out. Of course, this was going to be held on a weekend. And Yuuji didn't work weekends! 

When the day came, her mother spent an hour chastising her for even making her receive such a call. She then left in a very irritated mood to meet her teachers and principal to discuss correctional methods to implement. 

Whatever, Rumi didn't care about that. 

Anyway, Yuuji was going to be waking soon. Rumi, knowing he was an early riser, moved the coffee table and leaned it against the wall to make room. Then she put on some music and started. 

Yuuji walked out around five minutes later. What he saw as soon as he exited the hallway towards the living room area was Rumi. 

Not to toot her own horn, but she was quite curvaceous herself. While not as tall as Chisa and her mother, she believed herself every bit as attractive. 

Still, doing this naked seemed...bland. And yes, embarrassing. Still, who liked a plain box? Everyone loved presents that were gift-wrapped. "Mere nakedness isn't kinky at all!" Chisa's words from days gone served Rumi well. 

Thus, Rumi was not naked. Instead, she wore a sports bra and black stockings. Under them, you could clearly see a pair of sexy red panties. 

Rumi heard him walk in and asked, "Ah, Yuuji. Hey, could you help me stretch?" She rubbed her neck.

The boy yawned and nodded, probably not thinking much of it. So, he was comfortable enough with women's bodies that he didn't react upon being asked things like this, huh?! The thought made Rumi feel a touch murderous, but not towards Yuuji.

Yuuji was her Cookie, after all. 

No, she felt murderous towards womenkind! Who here is training Yuuji to be a player, huh? He's supposed to a bit hesitant here, okay?! That's normal! She's cute! So why...is he so damn cool about it?!

It's that bitch from the bakery, isn't it? That Angie or whatever, with the tits like a Holstein cow! Ah, whatever. Let's kill her some other time. For now, focus! Think sexy thoughts!

Rumi sat down on the floor and spread her legs in a V-position. Since she'd been very good lately, Yuuji didn't suspect her at all. 

Sadly, Yuuji, you let down your guard. Prepare for fatherhood!

...The thought made her cheeks warm, so she quickly did away with it. 

She felt his hands at her back. They were a touch cool and for some reason made her shiver just a bit. But Rumi didn't mind it at all. 

"It's uncomfortable to be standing hunched over like that, isn't it?" Rumi asked. Yuuji was pretty tall so he had to reach down to press on her. "Just sit down behind me. Isn't that how it's usually done?"

"Yes, it is." Was all he said. She could feel his eyes on her, but she didn't show any reaction. 

She just tsked. "Well hurry up, then! Jeez, you're so slow!" She said with clear impatience. Yes, that was good! 

He nodded, seemingly satisfied with her response.

As he took his place behind her, Rumi scooted back until she felt him. "Alright, push." She ordered. 

And he did. Rumi's lips quirked.

For as her upper body was pushed forwards, Rumi wiggled her ass. Up and down, grinding him slowly. 

He stopped. "Alright, hold on," He moved away. "What the fuck was that?" He demanded.

Rumi looked back at him, her face carefully schooled to annoyance. "Hah? The heck are you talking about?"

His eyes narrowed. For several seconds they stared at each other until Rumi let out a breath of frustration. "Gods, you're such an ass! I thought you said you would help. Are you going to or not?"

That was apparently the right thing to say. He grunted, "Whatever." And they resumed. 

Rumi almost laughed.

Yuuji, you've fallen victim to one of the classic blunders....trusting a woman! 

Holding the evil cackle she felt bubbling up, she didn't dare play any more tricks this time. For several positions, she was tame. Then it happened. On the Extended Puppy position.

"Stand up for this one and push down on my ass." She told him. 

"The hell?" He looked at her strangely. "Does this position even need a partner?" 

"We do it like this all the time in my yoga class. Come on, this is the last one."

She saw him shrug. "Just seems pretty fucking weird, all I'm saying." 

And as he gave firm press, a thought came to her. "Harder." He acquiesced, putting more strength into it.  Rumi felt his palms press into her ass and a strange warmth entered her stomach.

While that was happening, she brought back her hips. She felt it. That monstrous thing. She'd felt it a bit before, but Chisa was right...even Rumi, having no experience with men's penises at all, knew this thing was daunting.

She resisted the urge to swallow and rubbed her ass against it. Before Yuuji could pull away again she grabbed his arms from behind her and kept him there, then grinded against him in full. She felt his cock harden in seconds. and something inside her started gushing a bit. Her crotch moistened somehow and she thought she'd peed herself a bit, but she wasn't sure.

But this didn't last long, as Yuuji quickly freed himself from her hold and pushed her away. She face-planted on the floor as he cursed.

"Rumi, what the hell do you think you're doing?" He growled. "I thought I was being too paranoid at the start, but this time--" 

Wasn't listening. She'd crawled to all fours and turned towards him. In her eyes was reflected Yuuji's tall, proud flag that stretched the fabric of his shorts to the limit. 

Like the cookies from the jar atop the pantry, it seemed to call to her. There was no voice, but something told her to come closer. And she did. Ignoring Yuuji's words entirely, she crawled to him. 

Yuuji said something as he saw her coming but she didn't catch what. Everything sounded so distant. He eventually backed up until he hit the wall. She looked up for a moment and found him peering down at her with an expression of warning. 

She didn't heed it. 

Instead, she focused on the massive thing in front of her. And sniffed. 

Electricity ran through her entire body!

Such a heavenly scent! What is this? His sweat? 

Rumi pressed her head against the pitched tent and nuzzled it, feeling the urge to press her entire body against him. So hard! She could poke an eye out! But she didn't care. 

She heard him yelling something. 

"Yuu, I want it." She all but purred. Actually she was almost certain that she did, in fact, purr. "This thing. Let me eat it, please." Her mouth watered in anticipation. His flavor, it smells so concentrated! Was it his sweaty member that it came from? Then how delicious must it taste?

No, before that, would this thing even fit?! No, it doesn't matter. She could lick. Yes. Savor it slowly, like hard candy. So hard.

Suddenly, pain blossomed at her cheek. 

She...she'd been struck? 

"Fuck this." Yuuji ground his teeth. A tic had formed in his jaw. "I told you what would happen if you didn't get your shit together. I don't make empty threats, Rumi." 

Dread ran down her spine. 

Yuuji waited until she next had school. Then, on that day, in front of the entire building, as people streamed in through the heavy iron-wrought gates, he showed himself a true man of his word.

Rumi had become unfit for marriage.