The Health Management Plan
The next day, in the early hours before the sun had even risen, I was sleeping soundly while hugging my pillow when I was startled awake by the sudden, thunderous sound of the front door swinging open. As heavy footsteps echoed through the darkened living room, I instinctively scrambled backward and shouted, "Gah...! S-scared me! Yejin... is that you?"
"Who else would know the passcode to your place? Obviously, it's me." Yejin stood before me, hands on her hips.
I buried my face in my quilt, groaning in pain until my pounding heart finally settled. "Ugh... what time is it, anyway...? The sun isn't even up yet..."
"5:12 AM. Get up. We need to do some cardio and have breakfast." Yejin lifted her leg and poked my morning erection with her foot.
Still half-asleep, I stood up unsteadily and stared at her with a dazed expression. Unlike her usual self, she was wearing a zippered windbreaker and short athletic shorts.
"W-what? Cardio...?" I mumbled stupidly, as if it were a word I’d never heard in my life. Yejin glared at me sharply and dropped a thick stack of papers in front of me.
"Ack... w-what is this?" I squinted, my eyes still crusty with sleep, and scanned the papers.
[Health Management Plan]
"H-health management plan...?"
"Yeah. Did you forget what we talked about yesterday? We decided to upload five videos a day starting today. To boost our subscriber count, we have no choice but to upload short videos frequently to get exposed to the algorithm."
"Ugh, ugh... but what does that have to do with this...? Can't we just upload five..." As I grumbled and let out a long yawn, Yejin sighed deeply, sat down next to me, and wiped the sleep from my eyes with her thumb. "You idiot. Do you think you can just film five times a day like it's nothing? This requires immense stamina. Since you're a sex monster, you might be able to pull it off for a day or two without prep. But think about doing that every single day. If your base stamina isn't up to par, you'll probably collapse from exhaustion. Plus, classes start tomorrow. It'll be twice as hard to balance school and work."
"...It's already twice as hard, won't it be even worse if I exercise...? Wouldn't it be better to just rest and save my energy..." As I mumbled, Yejin narrowed her eyes at me, then silently pulled down my underwear and took out my cock.
"U-ugh... what are you doing?"
"...I'm checking your condition while you're still fresh. You'll be a wreck soon enough." While I scratched my head and looked down, Yejin leaned in and inhaled deeply, smelling the scent I had already let her take in several times.
"Sniff... whew... sniff... ha... huff..." Once Yejin started smelling me, she would keep her nose buried there for at least ten minutes, so I had no choice but to stay still. She pressed her nose against the tip of my cock where the scent was strongest, inhaled for a long time, and then slowly traveled down the shaft to the sagging testicles, smelling every bit of it without leaving anything out. For the finale, as always, she pulled back the foreskin and licked the white smegma clean off with her tongue.
"Slurp... smacking... gulp... smack... shhh-urp..."
"...Is it really that tasty?" I asked cautiously to Yejin, who was smacking her lips and licking up my smegma with relish. She wiped the saliva from her mouth with the back of her hand and snapped back coldly.
"As if it's tasty. This is all part of checking your condition. Be grateful."
"R-right."
With a cold expression, Yejin kneaded my testicles to gauge their size, then glared at me. "...Did you jerk off again after I left yesterday?"
"Ugh... I was tired, so I only did it once... I couldn't help it after seeing the photo you sent... I'm sorry..." It was understandable; the photo Yejin had sent last night was of her in a maid outfit, her chest exposed, licking her own nipple with her tongue. How many people in the world could resist seeing a photo like that? At least, I couldn't.
Yejin sighed, glaring at me, and suddenly snapped a photo of my cock with her phone. "Ack...! W-what are you taking a picture of?"
"I'm recording your status. Your testicles are big enough that I can tell how much sperm is left just by looking. It's inaccurate if I only gauge it by hand." Yejin said that, typed something meticulously into her phone, and then tucked it into her handbag. "Alright, get up and get dressed. We need to do cardio first."
"Ugh... I don't want to..." I had hated cardio since I was a kid, so unlike other high school boys, I was the type who would just sit quietly at my desk during lunch. Unlike strength training, which is just a short burst of pain, I truly loathed cardio, which required enduring extreme suffering for a long time. But Yejin, as if she already knew all about my condition, pushed up her glasses and said, "...You've had terrible stamina since you were a kid. You failed every long-distance run in physical fitness tests since middle school, right? I've already investigated all your PE grades. And yet, you have a diet that loves instant food and sweets. Your body is only healthy right now because of your age, you know? In just ten years, your cardiovascular system will be so bad you won't even be able to get an erection. I don't even want to imagine how much I'll have to suffer if I try to fix it then. It's better to fix your habits starting now."
"Ugh, my ears are ringing... Fine, fine. I'll exercise, happy now...?" I grumbled, struggled out of bed, and put on my gym clothes. Yejin watched me with her arms crossed, and once I was dressed, she turned on her heel and marched out the door. "Alright, follow me."
Afterward, Yejin and I arrived at the university's main athletic field. Since it was early and just before the start of the semester, the field was very empty. Yejin personally stretched me out, pulling my body here and there. I was surprised by how flexible she was. "That's because I stretch consistently. You do it too; your fascia needs to be loosened so your blood circulation improves and healthy sperm can be produced."
"Y-yeah..."
After the warm-up, Yejin suddenly pulled my phone out of my pocket. She held my lock screen out to me and said confidently, "...Show me the pattern."
"Ack... well, I don't mind, but..." As I showed her my lock pattern in a daze, Yejin nodded in satisfaction and tapped away with both hands. Then, she suddenly showed me the screen and said, "See? What do you think this is~?"
"Huh...? I-is this our department's group chat...?" Naturally, as an outcast, I had almost never said a word in there. I hadn't even dared to jump into the conversation between the popular kids. Yejin had posted the link to the site where we had been uploading our videos into that very chat, and her thumb was hovering over the 'Send' button. I realized the situation, my eyes widening in horror as I shouted, "Hey, w-wait a minute...! What are you doing...! If you post that there, what am I supposed to do? Are you trying to kill me socially?"
"I haven't sent it yet. You have to press the send button for it to go through."
"G-give it back right now...! Argh..." As I reached for my phone, Yejin quickly hid it behind her back and said shamelessly, "...If you overtake me within 30 minutes, I'll let it slide. But if you're slower than me, I'm sending it without mercy. Got it?"
"H-how can you do that...!"
"How? Like this. For your information, I'm going to run on the innermost track. You run on the outermost one. If I catch you running on the inside, I'm sending the link to the group chat immediately."
"What? What is that, it's unfair!"
"You're a man and I'm a woman, so this much of a penalty is only natural. Look at our height difference; a normal man should be able to overtake me before even finishing one lap."
With that, Yejin tucked my phone into her jacket pocket, cracked her neck, and suddenly kicked off the ground and started running. "Then, let's begin! Catch me if you can~ Ahahaha!"
"Hey...! W-wait...! Ugh, seriously...!" I had no choice but to suppress my frustration and follow her, panting. The problem was that Yejin was truly, impossibly fast. I remembered that even when we were kids, she was incredibly fast for a girl, and I always lost whenever we raced; it was the same situation now. On top of that, my stamina was already garbage, so I was out of breath after running just a little bit, and having to run along the large outer track made it feel like there was no end in sight. I wanted to give up after just five minutes, let alone 30, but Yejin kept looking back and adjusting her distance so that I could almost catch her but not quite, forcing me to keep running.
"H-huff... huff... huff... s-stop there... huff... huff..."
"Hehe, so weak, can't even catch one girl~ Tee-hee-hee." Yejin even had enough stamina to turn around and run backward, showing off. Whenever I got close enough to catch her, she would start running properly again and widen the gap. Finally, after about 15 minutes, I collapsed to the ground as if I had broken down. "Huff, huff, huff... k-kuh..."
The sky, with the sun high overhead, looked entirely yellow. My vision was spinning rapidly, and I felt incredibly dizzy. Yejin slowly approached me, squatted down beside my head, and poked my cheek. "...I'll let it slide just for today. I'm really going to send it tomorrow, so be prepared."
"T-thank you..."
"That's enough for today. Let's go home."
I couldn't stand up on my own two legs, so, pathetically, I had to be supported by Yejin just to stagger my way back home.