Gym Rat Battery Commander and the Dizzying PT Session (1)
Maybe because it was my first day in the unit, time flew by as I flipped through the mission manual I hadn't gotten around to yet, and before I knew it, PT time was right around the corner. Just as the battery members who'd gone outside started filing back into the barracks, Go Suyeon, the administrative sergeant pulling workout clothes from the side, struck up a conversation with me.
"Did you bring a change of clothes for PT, Forward Observer Platoon Leader?"
"Yeah, I did."
"Thing is, we don't have a separate men's changing room yet... so you'll probably have to use the new men's bathroom on the first floor."
"Ah, got it. No problem."
Following her explanation that there was nowhere else to change besides the bathroom, I grabbed my short-sleeved shirt, shorts, and sneakers and headed downstairs. Stepping into the men's room on the right side of the central staircase, I was greeted by the sight of a bathroom that screamed hurriedly slapped together. The finishing was a bit rough around the edges, but it was clean enough. Not even taking a moment to look around properly, I changed quickly and headed straight up to the second floor where the battery was.
After stashing my fatigues and boots in the admin section, I stepped out into the multipurpose hall, where the soldiers had already assembled, standing at attention with the battery commander out front. There was Captain Lee Seon-ah, wearing a thin windbreaker over a tight short-sleeved tee, paired with dark purple leggings below. I swallowed hard, eyes locked on the massive curve of her ass straining against those leggings, a mix of doubt and hunger rising in me.
How many inches is that ass?
*Gulp...*
The next moment, catching my arrival out of the corner of her eye, Battery Commander Lee Seon-ah barked an order at the troops.
"Alright, everyone assembled on time. Now head down to the training ground and form up in four ranks. Move out!"
Following her command, the soldiers descended the stairs with the flag bearer at the front. The other officers trailed behind them toward the first floor, but then the battery commander approached, her impossibly juicy ass swaying hypnotically, and called me over.
"Jaejun, pay close attention to how I lead PT today. You're doing it starting tomorrow. And don't forget we're hitting the weights together later, right?"
"Yes, ma'am, I remember."
"Good. Let's go."
*Sway*❤️ *Sway*❤️ *Sway*❤️ *Sway*❤️
She descended the stairs, shaking that huge, springy ass that looked straight-up incredible. Truth be told, I wasn't just indifferent to weights—I downright hated them. But with that massive booty dancing right in front of me, I was suddenly looking forward to my gym session with the battery commander.
After wrapping up the first fitness training—push-ups, sit-ups, and a final 3K run, just like what I knew— the soldiers dispersed for personal workouts or other activities. That's when Captain Lee Seon-ah beckoned me closer.
"You can handle leading PT like I did today starting tomorrow, right Jaejun?"
"Yes, I can."
"Good. Ready to hit the gym?"
"Yes, Battery Commander."
With that short exchange, she led me to the physical training room on the first floor of the battalion barracks. Stealing glances at her enormous ass and its powerful sway—never getting tired of the view—my footsteps soon brought me to the gym door.
*Click, whirr... clack!*
Following her as she casually opened the door, flipped on the lights, and stepped inside, the gym's distinctive smell hit me, revealing an empty space with nothing but equipment.
"Lately, all the officers and enlisted are into yoga or Pilates, so no one comes to the gym. Means I get to use the machines in peace."
*Zzzzzip...*
Explaining why the gym was deserted, she unzipped her windbreaker and pulled it down.
*Jiggleee*❤️
The moment that thin jacket slipped off her upper body, her heavy tits—overshadowed until now by her ass's impact—bounced into view, yanking my gaze. Not quite as overwhelmingly huge as her rear, but those melon-sized breasts strained against her black tee as she walked to the Smith machine.
*Clang... clang...*
While I spaced out again, mesmerized by her tall 175cm frame and explosive curves, she bustled back and forth, loading plates onto the Smith machine. In the process, her lower body thrust toward me... That ass, easily over 40 inches, swelled massively, stretching the already taut leggings to the brink, almost translucent.
Caught off guard by the breathtaking, perilous sight, my 26cm monster cock surged to life in an instant. Alone with my direct superior, I had to hide the erection at all costs, so I summoned superhuman willpower and tore my eyes from her protruding, luscious ass.
Even so, my dick refused to soften... The silver lining? I'd worn my tightest boxer briefs as backup, so the thick shaft was barely contained, plastered to my left thigh. But that was just a band-aid—if it went full mast, it'd pitch a massive tent through these baggy shorts for sure.
Just as I was in crisis mode, the battery commander finished setting the weight, slid under the bar like a pro, and called out.
"Jaejun, I'll do a set first, then you follow. Watch me."
"Y-Yes, Battery Commander..."
"And don't just stand there—come behind me and check my form."
At her order, I moved behind her as she readied for squats, legs spread just wider than shoulder-width.
*Tap tap...*
Clasping my hands in front casually to hide my half-hard cock, I stepped onto the old mat, which squeaked underfoot, stopping behind Captain Lee Seon-ah. My view was now even more erotic.
Her massive ass stood out sharper, tensed to support her body weight plus the barbell on her shoulders. Then the real squats began, that perfectly heart-shaped, developed beast of a butt pumping up and down.
"Hup! Hoo... Hup! Hoo..."
Her steady breathing synced with the reps. And her thick lower body put on a show so mesmerizing I couldn't look away. That ass rising and falling in rhythm, its outline sharpening with each move—it felt just like her riding a guy cowgirl-style.
*Throooob!*
In the end, her lewd squats were more than enough to drive a man wild. My cock went full throttle, throbbing painfully as it shoved aside the briefs and pitched a huge tent.
If she turned around after her first set, there'd be no hiding the massive bulge tenting the new lieutenant's shorts—the first guy she'd ever seen here.
I spun around in a panic and shoved a hand down my pants. My fingers closed around the thick 26cm beast that had already burst free from the boxer briefs. Ignoring the slight pain, I wedged the raging shaft between my thighs and clamped my legs tight together.
Emergency fix complete—the tent collapsed just as she finished her set and called out.
"Jaejun, I asked you to check my form—why'd you turn around?"
"Ugh... Sorry, Battery Commander. Got something in my eye..."
Hearing the suspicion and hint of annoyance in her voice, I rubbed my right eye and turned back. My quick improv surprised even me, but it worked—her tone softened.
"Jaejun, rubbing like that could hurt. Stop. Let me check."
She approached me, my cock still rock-hard and wedged between my thighs. As her steps thudded on the mat right up to my face, a faint, seductive scent—stirring the primal male instinct deep inside me—wafted over.
Even clamped tight, my cockhead twitched violently, spurting hot precum in a gush.
A moment later, she gently lifted my right eyelid and peered at my eye.
"Hmm... Doesn't look like anything's there... Still feel something?"
"Yeah... a bit of irritation left."
"Alright? Let me blow on it. Hoo..."
At my reply that something was still there, she pursed her rosy lips and blew gently. The sight of those plump, glossy lips—and the swell of her luscious tits below—made my piss slit clench, oozing another sticky rope of cock juice onto my thigh.