Not Because I Wanted To, But Because I Needed To (Eunjeong, Eunsu)

"Taeseok, are you up?"

Her voice was warm and gentle as always.

Even though she must have known he had come out of Eunsu's room, there was not the slightest change in her expression. If anything, her smile was softer, more tender than usual.

Taeseok felt a flicker of confusion.

...Why is she so calm? Is she really okay?

He looked at Eunjeong and thought it over. There was guilt, no question. The weight of having handed her over to another man—and worse, of having put his hands on her little sister—pressed hard against his chest. And that untroubled face of hers, that soft smile, only made him more uneasy.

At the same time, he found himself marveling again at his own power.

No matter what I do, I've turned her into a woman who understands and forgives me?

He studied Eunjeong for a long moment. This was no longer understanding. This was submission. Absolute submission.

Have I... broken her too thoroughly?

The thought made him want to hold her again more than it made him feel sorry. He stepped toward her slowly.

"Yeah. I'm up. Already making breakfast?"

"Yeah... You worked hard yesterday, so I have to help you recharge."

Eunjeong drifted naturally into his arms and rested her face against his chest.

"Honey... you... won't abandon me, right?"

A woman preparing breakfast for the man who had just slept with her little sister, ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠terrified she might be thrown away. In that single instant every scrap of guilt vanished. The need in her eyes only made him want to crush her further beneath him.

A woman who is satisfied just by being held by me. Our Eunjeong...

This was not a sin. She was not broken. It was simply the change his ability had wrought.

Guilt? I don't need it. All I have to do is hold her one more time.

Not only Eunjeong—Eunsu as well. And whoever came next. As long as he possessed the power to make anyone his, whenever he wanted, there was no reason left to hesitate.

Taeseok pulled her waist harder against him.

...From now on I need to get even more shameless.

Eunsu could not bring herself to sit at the table and eat with Eunjeong. While her sister and Taeseok were having breakfast together she slipped out of the house almost as if she were fleeing. The moment she reached her fitness club she went straight into the locker room.

As always she stood before the mirror and slowly examined her own body. Lately this private ritual had become something she looked forward to with a thrill that bordered on hunger.

Last night alone... how many times did I come? I can't even remember. That means I must have gotten even prettier, right?

In the mirror her breasts had swollen heavier and firmer, full of new elasticity. Her waist had cinched tighter; her hips and thighs, already sculpted by years of training, now carried an extra clarity of line and a smoother, silkier sheen.

Her skin glowed softer and brighter; the overall proportions of her body had become beautiful beyond any comparison to what she had been before. Eunsu cupped her breasts in both hands and smiled with deep satisfaction.

Fuck... I'm too gorgeous. Looking like this, how am I supposed to keep myself from crawling into Taeseok's arms?

She stared at her reflection and the overwhelming pleasure of the night before came flooding back—the way he had held her, the way her body had come apart.

Just having an orgasm makes me prettier? What kind of broken cheat is that?

The mere thought of Taeseok sent a fresh, tingling heat rolling through her lower belly. The thick, scorching sensation of him filling her completely, the way her body had melted every time she climaxed—it all returned with merciless clarity. She pressed her thighs together and clenched her teeth.

Will this effect last forever? If he starts keeping his distance... will I go back to the way I was?

The fear alone made her abdomen pulse hotter. She could feel herself growing wet.

No. Work. Work!!!

Today was the day of personal training with the fitness YouTuber Dohyeon.

Eunsu checked her body one more time in the locker-room mirror. A tight sports bra compressed the breasts that had already grown larger; high-waisted leggings dramatized the elastic curves of her hips and thighs.

Six months earlier Dohyeon had approached her first. A famous fitness YouTuber with a million subscribers, he had started using her club and grown close to her in the most natural way. Eunsu, for her part, had wanted to leverage his fame for club promotion. The relationship had quickly turned physical, and that illicit affair had become the decisive grounds for the divorce suit against her husband.

Lately the spark between them had cooled. Eunsu was consumed by the divorce; Dohyeon had new women. Still, taking his PT sessions remained a source of tension. She drew a deep breath and stepped out of the locker room.

In the main floor of the club Dohyeon was already there, stretching. Black compression tights and a tank top showed off every hard line of muscle as he slowly loosened up. The moment he spotted Eunsu his eyes flashed—not simple pleasure, but raw, undisguised curiosity. He stared at her for a beat as if he had forgotten how to speak, then smiled lightly.

"Boss... what have you been doing lately?"

Eunsu's brow twitched.

"Why?"

"Just... I didn't think a person could change this much."

His gaze traveled slowly from her face downward, open and thorough.

"...Shut up. Just get ready to train."

She cut his stare off with ice. Dohyeon did not back away. Instead he stepped closer and looked down at her from above.

"I'm genuinely curious. As a fitness YouTuber... this kind of transformation looks like content gold."

"...I don't want to be used like that."

"Come on... even if things have cooled off between us lately..."

"Stop the nonsense. Squats, twelve reps. Keep your knees from caving in on the way down."

She kept her voice deliberately flat. Dohyeon shrugged as if he had no choice, settled the bar across his shoulders, and set his stance.

"Deeper. Hips back."

Eunsu moved in behind him—exactly the distance required, no more. Dohyeon deliberately exhaled louder, the sound close enough to brush her skin.

"Hah..."

Her hands settled on his waist, correcting the position with clinical precision. In that same instant his eyes slid downward, sticky and slow, following the thigh lines carved by the leggings and the natural curve that appeared when she leaned in.

"Good. Stay like that..."

Thud.

His hand landed on the inner side of Eunsu's thigh.

"...Hey!!! You planning to focus or not?"

She snapped, voice sharp.

"Hands!!!"

Dohyeon glanced at her face, then slowly withdrew his hand.

"Ah, sorry."

But the corner of his mouth was still lifted.

"It's definitely different."

"What is."

"Those thighs... they aren't the same thighs that used to squeeze around me."

Heat flooded Eunsu's face.

"You keep this up and I'm switching your trainer."

"Got it. That was pure praise, I swear."

His answer was simple.

"Still... I really want to touch them."

Eunsu's hands froze.

"...Don't cross the line."

Her voice was cold.

After the session ended Dohyeon raised a hand as if it were the most natural thing in the world and brought it near the line of Eunsu's waist.

"Boss."

"...What."

She answered shortly and picked up her water bottle. Dohyeon stood close behind her and spoke in a low murmur.

"How's your schedule looking today?"

The question was abrupt, but the intent was transparent. Eunsu set the bottle down without answering. Dohyeon closed the last bit of distance until his lips were almost against her ear.

"After this... clear some time for me."

Her eyebrow twitched. She stepped back and answered coldly.

"You know I can't."

"Because of the divorce?"

He smiled and brushed her waist lightly with his fingers.

"Who knows when that will even be over. How am I supposed to wait that long? Membership at your club seems a little stagnant lately... One proper video from me on YouTube and I could easily push your numbers up twenty percent inside a month."

Eunsu bit her lip. The offer was sweet and dangerous at once. His influence would grow the club without question—but the price would, of course, be her body. Dohyeon leaned closer still.

"Just once... like before. Your body's gotten so beautiful I just want to check it out myself."

She stayed silent for a long time, then slowly turned her head and looked at him. A man she had already slept with for months. She could have agreed lightly—yet Taeseok's face rose in her mind.

"What? You don't want to?"

She avoided his insistent gaze and clenched her fists. Even while telling herself she should refuse, the practical problems crowded in: the club's operating costs, the legal fees for ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠the divorce...

In the end she let out a quiet sigh.

"Fine. When we're done... I'll message you."

A satisfied smile spread across Dohyeon's mouth, the expression of a man who had already known what she would say. He drew her waist in a little tighter and spoke low.

"I'll be waiting."

Eunsu quietly pushed his hand away and added in a cold voice,

"Not here."

Eunsu lay on Dohyeon's bed. Her legs were spread wide; she was pinned beneath his hard body.

"Haaah! Haaah!"

Dohyeon hooked her thighs over both of his shoulders and drove deep into her with powerful thrusts of his hips. His breathing grew rougher; his movements swelled as if he were putting his own masculinity on full display. Confidence radiated from him.

"Haa... Noona... feel that. My cock... it's completely swollen and rock-hard right now, isn't it? This size... you feel it? The second women take this thing they go crazy. You used to love it so much too."

He grinned with absolute self-assurance and slammed his hips harder. His solid, beautifully built body moved above her with exaggerated force—the clear ripple of abdominal muscle, the driving thrust of his pelvis. As if showing off his cock, he deliberately pulled almost all the way out and then buried himself to the hilt again, speaking loudly the whole time.

"Look at this... this is a real cock. Do you have any idea how hard you're squeezing me? Clamping down like that... I'm going to lose my mind. Noona... you love it so much you could die, right? Huh? Say it."

Eunsu bit down and swallowed ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠her moans.

"Haaang~ Shut up. Just keep doing what you're doing... nngh..."

"You feel it?"

His voice was low and thick with confidence.

"Right now your body is following every move I make."

Dohyeon's cock was large enough and hard enough. An ordinary woman might well have been satisfied with its thickness and girth. Her past self had been. But Eunsu's body already remembered something of an entirely different order. The moment she compared it to Taeseok's, Dohyeon's felt like a child's toy. Depth, thickness, the sense of being completely filled—everything fell short so dramatically that the comparison itself was an insult.

She laughed silently inside.

...What is this. Compared to Taeseok it's pure baby dick. I... was actually hooked on this guy for a while?