Mind Demon's Path of Domination

Deep into the night after the busy day.

Yuri was tinkering on something with rapt attention. These days, she was all but free. Too many things to research and only twenty four hours in a day—she wished she could create a way to reduce sleep.

She rubbed her head. "Thankfully, the Hunter Awakening was successful, at least." Then, she looked at Mark, who was looking at her with rapt interest. "So, why did you go so far to ruin those cheap kids' reputation?"

Mark asked, "What? I can't have some hobbies I like to do for no reason?"

"Surely, you can." Yuri put aside her goggles and turned off the lights on the lab table. She walked towards the demon and sat down on the couch beside him. Dona looked at her from the other side of his shoulders. "But as far as I saw, you are not the type to do something for no reason."

Mark looked at her beautiful face. Yuri was a pale tan, with a beautifully round face, short, somewhat curly black hair, and pearl-like black eyes added to the mix—she looked enchanting. Yet, now, she seemed a bit bored, too.

"I do things for no reason other than my enjoyment, too," Mark said with a smile and patted Dona's hair. She lay there with her head on his lap, silent and comfortable. "Like this woman, I just enjoy being around her."

"...Really?" Yuri smiled. "You are strangely human for a demon. I noticed before, too. You are like some young man releasing his pent-up stress on the world sometimes. It's somewhat as if you consider everything your playground."

"I am a young man," he said.

"Oh, how old are you?"

"Young even by human standards."

Yuri didn't bother anymore and removed her lab robes. She had a really slender figure and rather petite bust—C-cup, perhaps?

Behind her white lab robes, she wore a black, skin-tight t-shirt and simple boxers. Her neck was an alluring sight, too. She noticed his gaze and looked back at him.

Yuri blinked. "Aroused?"

"You have a very beautiful body." He wrapped his hand around her.

Yuri was tiny in comparison to him—he was more than 4 meters, and she was just 1.6 meters. She was less than half his size.

When he wrapped his hand around her, it almost covered her entirely.

Yuri didn't resist but leaned against him instead. She wrapped her own hand around his waist.

"Do you like my color?" He asked, "Red, I mean." Or why would she feel no aversion to a foreign species?

"Red? Oh…" Yuri scratched her cheeks as she blushed like a tomato. "I am colorblind."

"What? Really?"

Even though he already had a raging boner, Mark was surprised by that revelation.

She nodded as she looked at his manhood in curiosity. It was indeed massive. Yuri really felt pain just by looking at it.

She poked the tip with her forefinger and said, "In fact, I was colorblind since birth."

"That's… a bit sad for a genius like you."

Yuri shook her head and stroked his huge bulge slowly. "To me, honestly, you don't look much different from a human—just that you have horns and, now, wings. Well, appearances don't matter to me."

She leaned down and, for starters, took out her small tongue and gave his tip a little lick. Mark shivered.

Dona looked at them curiously and sat up. She was the easiest to arouse, but at the same time, she was a scaredy cat.

From the moment he became so big, Dona had never once initiated anything like mating. She yelped as Mark inserted one of his hands into her boxers and began groping her ass.

She leaned against his chest and looked up at him pitifully. "Mark…" she said.

He kissed her forehead, and she calmed down.

Mark just moved his hand inside her pants for a while before he found a wet spot with his fingers. Right at that moment, Yuri also put the tip into her mouth and began biting and teasing experimentally. Her eyes were upturned to see his expression.

Spreading out his thighs, Mark pushed the woman's head gently down with his free hand, and she looked at him with interest as her mouth widened to let more of his manhood into her.

It was far from completely devouring him, but she did take a significant bit into her.

Dona looked at the scientist with a gulp. Right then, the demoness felt a finger sneak into her sacred zone and clenched Mark's hand with her legs, but that only intensified his urge to move his fingers deeper in.

"Mhfguh–" Yuri tried to say something and he let go of her head. She sat up with saliva dripping from the sides of her face. "I was breathless, be a bit more gentle; I am no expert in this."

She seemed a bit irritated. Mark caressed her hair and pushed it behind her ears. Her pale tan face was flushed red and hot. She was even licking at the sides of her face to drink his precum.

"Does it taste that good?"

She blushed even more.

Yuri wanted to bury her head back into his manhood to hide the embarrassment, but before she could, the demoness had taken hold of it and was curiously licking it.

Mark held his breath as Dona's warm mouth surrounded his manhood.

Yuri didn't know what to do and just awkwardly paused, but Mark didn't wait around and pushed Yuri down on the couch. Then, he brought his face close to the middle of her thighs. She unconsciously tightened her legs around his face.

Mark could smell the intense scent of femininity from her. She trembled. Mark touched her womanhood with his thumb. She felt a coldness press against it—her panties were wet, and his touching it made her incredibly sensitive.

A visible wet spot appeared on the black cloth. Her thighs tightened around his head.

Mark smirked at her scared-kitten-like expression and gently licked her panties. It easily got ten times wetter, and he could see a clear image of her pussy through it.

She had a distinctly sweet-salty taste.

He licked along her slit, and she dug her fingers into her couch and pushed her waist towards his face. Mark licked more and more furiously until suddenly, Yuri moaned.

An!~

"There, there, there!" she screamed. "Ah, there!"

Then, he could feel her whole body relax, and her feminine liquids splashed all across her thin panties.

She huffed, panted with a flushed face, and laid back on the couch. Mark could still feel Dona's tongue curiously explore his own manhood. He looked at Dona, and just then, she gave his manhood a little bite.

"Don't be nervous, I will treat you to that, too."

He sat straighter and Dona, who had sat on his lap, raised her butt, letting him remove her boxers.

Her dripping red pussy greeted him, and she looked at him in eagerness. He gently raised her lithe legs up and placed them on his shoulders. Then he slowly made her pussy descend onto his manhood.

The demoness looked at him fearfully this time and held onto his neck with her hands. His wet tip touched her slit.

"Mark!" she said with her outlandishly attractive voice as he pierced into her smoothly.

His cock was too big to move in entirely, but it would still fit some bit in. He felt her warm walls surround and drag him into her. They tightened around him.

Dona moaned, and her face became a beautifully aroused expression.

He gently stopped her descent as he felt her cervix with his tip. The demoness became soft, and her whole body just became filled with pleasure.

Nghh~

He took her by the butt and moved her up and down. She huffed in satisfaction as he slowly moved, and soon enough, the room echoed with the sound of tasty moans, huffs, and the debauched mish-mash of flesh.

…

Mark is indeed special, Yuri gulped.

Looking at Dona and Mark going at it, she took a deep breath and, a second later, curled her legs up.

It felt so good. Does he do that to Dona every time? Can I ask for it more?

Him licking that dirty place of hers—even though there was cloth in between—was so hot.

Maybe he did that on an impulse, and this is only a one-time thing. I am nothing to him other than a plaything, after all. He only cares about Dona.

This was not so bad. She liked this kind of life, too. Research, growth, intimate physical contact—releasing each other's pent-up lust.

Is this what it felt like to be someone's partner?

Dona was a lucky woman.

Is this a woman's envy?

She shook her head inwardly.

Yuri herself couldn't last any more rounds. He did give her more shots, but she was too sensitive after the first time, and Mark didn't seem to want to break her hymen in an uninteresting way.

But damn, she felt ten times lighter already. She didn't even know when she fell asleep. This man's chest was, at least, the safest place she had ever slept on.

She knew that much without any other experiments.