** Chapter 2 **

The next night, Naoto stood outside Yuki's apartment, his breath visible in the chilly wind. He was determined to make a better impression this time during their training session, unable to forget the awkward encounter he had with her the previous day. He took a deep breath and rang the doorbell.

The door swung open, and Yuki greeted him with a warm smile. She cut a formidable figure, dressed in a black sports bra and spandex shorts combo showing off her toned figure. "Hey there, Naoto! Ready to get our sweat on?" she exclaimed, her enthusiasm obvious.

Naoto couldn't help but feel a bit self-conscious as he thought of his own lanky frame next to Yuki's powerful physique. He still couldn't believe this magnificent woman wanted fitness advice from him. "I'll do my best," he replied, trying to sound confident.

Yuki invited him inside and offered him a drink which Naoto politely declined, feeling too nervous to eat or drink anything. As she led him into her living room, Naoto couldn't help but notice the changes she had made in preparation for him. Most of the furniture had been moved out, leaving a large mat in the center of the room.

"I cleared the space for our workout routine," Yuki explained, gesturing to the mat. "I wanted to make sure we have plenty of room!"

Naoto nodded. "You've really put a lot of effort into this," he remarked.

A hint of a blush on her cheeks, Yuki grinned. "Well, I was serious about working out and getting stronger, right?"

Yuki's face suddenly grew sheepish. She paused, looking down at the floor. "I can't shake off the embarrassment of needing your help yesterday for a single push-up," she said, her cheeks tinged with a hint of blush.

Naoto was touched by her confession. He could see that it had been bothering her. "Well, I'm here to help however I can," he reassured her with a smile.

Yuki's eyes sparkled. "Actually, I want to prove to you that I'm stronger than that. I want you to assist me in a different way this time," she said, her voice filled with resolve.

Naoto was intrigued by her request. "Alright, then. How can I help?"

Yuki grinned mischievously. "I want you to get on my back. It'll make push-ups even tougher for me."

Naoto hesitated, feeling unsure about the arrangement. But Yuki's desperation was evident as she walked over to him, grabbing his shoulders. "Come on, Naoto, you promised to be my fitness coach," she teased, her eyes locking onto his. "I want to show you my progress."

Naoto couldn't resist her influence. Looking up at her pleading face high above him, his head barely past her elbows, he wanted nothing more than to please this stunning giant. He sheepishly nodded in agreement as Yuki broke into a giant smile.

She spread out on the mat, waiting for Naoto expectantly as he gingerly straddled her back, hands on his lap. Laughing at his politeness, Yuki reached back and grabbed Naoto's arm, pulling him forwards until he was laying flat against her body. He adjusted himself onto her, his face resting between her shoulder blades, arms at his sides, the very tips of his feet barely reaching the curve of her butt. He felt dwarfed by the height advantage this woman had over him.

"Comfy?" Yuki giggled, getting into push-up position with Naoto on her back.

Grunting with effort, Yuki began her push-ups. Naoto found himself struggling to remain in place, barely able to keep his grip as she bounced up and down. He apologized when he almost fell off, his face turning red with embarrassment.

"I'm sorry, Yuki," Naoto said, his voice strained. "I'm trying my best."

Pausing in a plank position, Yuki reassured him with a smile. "It's okay, Naoto. Just wrap your arms around my chest and hold on tight," she instructed. "I need you to be comfortable around me if we are going to be working out together."

Naoto complied, stretching his arms around her, his body pressing firmly against hers. He was barely able to reach, his fingertips barely locking together in the space right below her breasts. Satisfied, Yuki resumed her exercise with Naoto clinging to her tightly.

The room was silent for some time except for the sound of Yuki's labored breathing as she exerted herself. Naoto could feel the heat building up in the room, the physical closeness and the intimacy of their position a heady sensation. A familiar heat in his lower parts began to grow, and he tried to distract himself from his growing erection by focusing on holding on. He could feel Yuki's deep breaths expanding and puffing out her chest as she exercised with him, almost causing his grip to break.

As if noticing his struggles, Yuki readjusted Naoto's hands to a better position against the sides of her bra, motioning for him to press his hands together. By effectively squeezing her breasts together, he was able to maintain some stability on her back. He resumed his role as weight resistance as she continued her push-ups, avoiding thinking about the softness of her body in his hands.

Naoto's issues grew as he noticed droplets of sweat forming on Yuki's back, making his current position slippery to maintain. Gripping her breasts as tightly as he was wasn't enough, he could feel himself sliding down her back every time she pushed off the ground. Even worse, he began to get more aroused as the fresh musky scent of Yuki's exertions filled his nose. Thankfully restrained by his pants, his cock rubbed gently against the soft but unyielding wall of Yuki's skin. He lay there on the beautiful giant woman's back in quiet horror as he slid further down.  

"Yuki, I..." Naoto stammered, his cheeks turning crimson.

Yuki's movements didn't falter as she continued her push-ups, but she looked over her shoulder and gave him an encouraging smile. "Hang on, Naoto, you're doing great!" She appeared completely oblivious.

Naoto nodded, trying to focus on keeping a tight grip on Yuki's breasts, but he couldn't help but be aware of how his lower body was resting on the generous curve of her backside. He was now draped almost entirely over Yuki's butt, his bulging pants pressed directly into the crack of Yuki's shorts. He could feel her glutes tense at the effort of the push-ups, which sent amazing sensations through him as his cock was squeezed through their clothes.

Yuki suddenly paused in the middle of their workout, a mischievous glint in her eye. "You know what, Naoto?" she said with a cheeky grin. "I don't want you to feel left out. How about we do something that will allow both of us to exercise?"

Naoto looked at her with a puzzled expression, curious to know what she had in mind. Yuki gestured for Naoto to get before her. He slid down off of her back, furtively rearranging his pants to be less obvious of his growing hardness.  

"Come on, Naoto, lay down," Yuki said, her voice filled with anticipation. She patted the mat in front of her.

Naoto hesitated for a moment, unsure of what Yuki had planned, but he eventually complied and laid down on the floor. The mat was warm and slightly damp from her efforts. With her hands on his shoulders Yuki climbed on top of him, her weight pressing down on Naoto as she straddled him. He swallowed in excitement, looking up at the giant, sweat-drenched woman kneeling above him. Leaning down, Yuki lay her entire body along the length of Naoto. Her brown locks formed an intimate curtain as they cascaded around Naoto's head.

"Now wrap your arms and legs around me," Yuki instructed with a teasing smile.

Naoto's cheeks turned pink as he embraced Yuki completely, feeling the warmth of her body against his. He locked his arms around her again, pulling himself against her. His face was once again buried in her cleavage, his nose practically wedged down inside her. Every breath was filled with Yuki's physical scent. He couldn't help but remember the similar position they had been in yesterday. The memory sent a wave of arousal through him, and his cock throbbed painfully against his belt.

Yuki chuckled, noticing Naoto's blush. "Remember this position from yesterday?" she asked playfully. She cuddled with him gently, rubbing their bodies together. Naoto could feel his fully erect cock pushing against his pants and Yuki's weight. There was just something about being completely immobilized by this tall woman's body that ignited him.

Yuki's body moved rhythmically as she resumed her push-ups, her form flawless and her movements fluid. Each time she lowered herself towards the floor, her body pressed down on Naoto, almost painfully. Naoto could feel the weight of Yuki's body on top of him, almost suffocating, but he couldn't deny the pleasing sensation it caused his cock every time her body pressed intensely against him. Watching this woman exercise was exhilarating enough but being so intimately involved sent waves of desire through him.

Yuki's skin glistened with sweat as she exerted herself, her breath coming in heavy pants. Naoto could hear her short breaths, so close to his ear, as she continued her exercise routine. Her musky smell invaded his nose, and Naoto's heartbeat quickened at the sharp but pleasant scent.

He tried his best to hold on, but after a few dozen reps, the combination of Yuki's slick skin and the rhythmic intensity of her body smashing against his cock was too challenging. Briefly losing focus his fingers slipped, and he fell to the floor with a yelp.

Yuki burst into breathless laughter, her sweat-drenched face lighting up as she looked down at Naoto.

"Oh, Naoto, you're too cute!" Yuki said, wiping tears from her eyes. "I guess we need to work on your grip strength, huh?"

Naoto rubbed his back, feeling slightly embarrassed about his slip-up. Yuki's laughter was loud in the quiet room as she loomed over him, her amused expression freezing as she noticed the obvious bulge in his pants.

There was an electric moment between them both: Yuki, her large frame dwarfing Naoto's body with hers as she kneeled above him, both of them staring directly at the erection pushing up his pants. Naoto's heart was pounding through his chest. He was convinced he had finally embarrassed himself in front of this beautiful woman.

"I..." Naoto began, having no clue what to say. His voice caught in his throat as he tried to interpret Yuki's thoughts behind those huge brown eyes.  

She cast a meaningful look at Naoto, her eyes conveying a hint of playfulness. "Naoto, are you impressed with my progress?"

Naoto nodded quickly, sensing a polite way out. "Yes! You're right. Sorry, I was admiring your...progress." He trailed off.

Yuki grinned, leaning in closer to Naoto. "Good! I want you to stay focused on me. Maybe I can help?" She looked at him expectantly.

Naoto's eyes widened in excitement. "What do you have in mind?"