I Took A Succubus's First Time-Chapter 51: Armpits

Kouhei swung his wooden sword with all his strength, the impact resounding with a dull thud as it struck the training dummy. But instead of slicing through, the sword just ricocheted off the hay surface, leaving him with stinging hands and mounting frustration.

"Your posture is off, Okumura-sama," Aria's smooth voice cut through his growing irritation, her tone calm but carrying an edge of critique.

After hours of basic practice the day before, today was supposed to be about fine-tuning. Posture, stance, and precision were the focus, but Kouhei's body ached from the repeated failures. The dummy stood unyielding, as if laughing at his futile attempts. He was supposed to cut through it completely, but using a blunt wooden sword? It felt impossible.

"T-There's no way I can cut this with a wooden sword, Aria-san," he managed, his voice ragged, his muscles screaming with each breath. For three relentless hours, he had swung and swung, pouring everything he had into each strike, and still, the dummy mocked him by standing firm.

"You're overthinking it," Aria said. "Focus less on brute strength and more on intent. Imagine the sword's edge as sharp as a blade honed to perfection. See it slicing through effortlessly. Concentrate on that, and swing. You'll cut through it like it's nothing."

Her instructions sounded simple enough, but they might as well have been riddles. Kouhei clenched his jaw, trying to summon the mental image she described, but no matter how vivid he made it in his mind, reality refused to cooperate. His wooden sword bounced uselessly off the dummy with every swing, leaving him more frustrated and exhausted with each attempt.

Hours dragged on until his legs buckled, and Kouhei collapsed to his knees. His chest heaved as sweat dripped down his face, pooling on the dirt floor beneath him. The wooden sword slipped from his grasp, clattering against the ground.

"Haaa… ha… I can't do it," he panted, his voice barely audible over the pounding of his heart. "It's impossible, Aria-san. There's no way I can cut that thing with a wooden sword."

Aria tilted her head slightly, her hair swaying as she studied him. Her expression betrayed no disappointment, only a quiet curiosity. Without saying a word, she reached for the wooden sword he had abandoned.

"Watch closely," she said.

She took a firm stance, her movements precise and deliberate, and then swung the wooden blade in a single, fluid motion. The air seemed to ripple around the sword, a faint whish slicing through the silence. The dummy didn't even resist. One moment, it was intact, and the next, the top half slid cleanly off, landing on the ground with a soft thud.

Kouhei's eyes widened, his mouth hanging open as he stared at the scene.

***

"She's just naturally talented," Kouhei muttered to himself later. "No wonder she can't teach properly. People with talent never understand what it's like to not have it."

It was a harsh reality. Aria's effortless skill was impressive, but it made her a terrible teacher. She couldn't explain what he was doing wrong because she had never experienced failure herself. Still, it was Kouhei who had asked her for help, and now he had to figure out the rest on his own.

After the grueling session, he dragged himself to the bathroom. Stripping off his sweat-soaked clothes, he stepped into the shower, letting the hot water cascade over his tired body. The heat eased the tension in his muscles, washing away the grime and dirt that clung to his skin.

"My body feels sluggish…" he muttered, scrubbing himself clean.

He'd pushed himself harder than ever today. Not just with training, but also… with Hina.

While he was rinsing off, the door creaked open, and standing there, wrapped in nothing but a towel, was Yuuna. The soft fabric clung to her damp skin, her figure outlined in a way that made Kouhei's breath hitch.

"Mind if I join you in the bath, Okumura-kun?" she asked, her tone casual but her eyes holding a teasing glint.

Kouhei had seen her body countless times before, but it never ceased to leave him in awe. Her smooth, flawless curves seemed almost unreal, sculpted to perfection with not a single ounce of excess fat. Her beauty was radiant, almost intoxicating, and seeing her like this again, dressed in little more than suggestion, made it impossible to refuse her.

"S-Sure," he stammered, his voice betraying his attempt to stay composed.

Despite the fact that he'd already spent hours tangled up with Hina earlier, his body betrayed him, a familiar heat rising as he hardened almost instantly. It wasn't wrong to feel this way—not when Yuuna looked as breathtaking as she did. It'd feel more like a sin not to react to a figure like hers.

With a small, knowing smile, Yuuna stepped into the bath and perched herself on a stool across from him. The bath was large, as expected of a mansion housing multiple people, with more than enough space and amenities for everyone. She sat with her back to him, letting the towel fall from her body.

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Her bare back was flawless, smooth as porcelain, devoid of any imperfection. The sight of her slender shoulders and the curve of her spine made it impossible for Kouhei to look away, no matter how hard he tried.

Yuuna reached for a bottle of liquid soap, her movements deliberate. She poured it generously over her chest, letting it cascade over her breasts in a way that felt almost deliberately sensual. The way the soap slid down her body, catching the dim light of the room, made Kouhei swallow hard, his throat suddenly dry.

'No, no, no…!' he thought, shaking his head to clear it. 'It's bad to think this way. She just wants to take a bath. Stop looking at her like that!'

But his resolve was weak. Every small motion she made, every tilt of her head or shift of her body, drew his eyes back to her. Her movements were hypnotic, the kind of beauty that demanded attention, as if it were a privilege just to witness it.

"Okumura-kun," Yuuna said suddenly, turning her head slightly to catch him staring. Her lips curved into a mischievous smile. "Would you mind washing my back? I can't reach it on my own."

Her voice was light, almost playful, but her words carried a weight that Kouhei couldn't ignore. She was right—no one could properly wash their back alone. And with him being the only one here, it was only natural for her to ask.

Kouhei's throat tightened as he gulped, his thoughts scattered. His body felt like it was moving on its own, and his mind offered little resistance. He knew it was greedy, but he couldn't deny the truth. Lust had taken hold of him, and Yuuna seemed intent on stoking it even further.

Before he knew it, he was standing behind her. She handed him the bottle of liquid soap, her fingers brushing against his as she did.

"Just like you did last time," she said, her tone teasing.

Last time? His mind raced, trying to recall. Everything felt hazy, but her words jogged his memory. Of course—she had asked him to wash her back once before. The thought sent a jolt through him, and his hands moved almost instinctively as he poured the soap onto his palms.

"Right… last time," he muttered.

He reached out and placed his hands on her back. The moment his palms made contact with her soft, warm skin...

"Ah..."

A soft gasp escaped her lips, delicate and breathy, like music meant to tease his restraint. His dick twitched involuntarily, his body betraying him all over again. Still, Kouhei clenched his jaw, determined not to do anything stupid.

After a moment, he poured water over her back to rinse away the soap. The suds cascaded down her body, tracing the smooth curve of her spine and dripping off her waist. He couldn't tear his eyes away from the mesmerizing sight.

"Thank you," Yuuna said, her voice calm and sweet.

Finally, Kouhei let out a breath he hadn't realized he was holding. Relief washed over him, though it was short-lived, as Yuuna did something completely unexpected.

She started washing her sides, her movements natural yet impossibly alluring. There wasn't anything inherently wrong with what she was doing—it was just that everything about it was driving Kouhei to the brink.

Yuuna raised her arm to reach one side, unintentionally exposing her armpit. Kouhei froze. He'd never thought much about armpits before, but in that instant, he found himself completely captivated. The smooth skin, slightly glistening with moisture, seemed inexplicably erotic. His dick pulsed harder, betraying his spiraling thoughts.

"What is it, Okumura-kun?" Yuuna asked, her voice laced with amusement. She stopped washing her side, but instead of lowering her arm, she left it raised, leaving her armpit fully exposed. There was a warm smile on her face, but her eyes gleamed with mischief. "Does the sight of my armpit... arouse you?"

Kouhei's throat tightened. She'd noticed. He couldn't even deny it. All he could do was gulp as his face burned with embarrassment.

"Fufufu..." Yuuna chuckled softly, her laughter as seductive as the rest of her. "It seems like you have quite an array of fetishes, and we've just discovered a new one."

She raised her other hand, placing two fingers on her armpit, and spread the delicate flesh apart. The movement was deliberate, provocative, and utterly shameless.

"How about it, Okumura-kun?" she purred, her voice dropping to a sultry whisper. "You can put your thing in here... and let's see what happens."