The Nightly Sparring (2)
"Whew."
Nahyun knelt on the floor, her lips pursed as if she were deep in thought. She glanced up at me, gauging my reaction, before bowing her head low.

"T-today... I would like it if you would thrust into my bitch pussy, Master..."
Seeing Nahyun in a posture of complete submission, her hands clasped and her waist bent, made my cock throb. It leaked pre-cum, practically begging me to ravage the bitch before me.
"Get up..."
"Yes..."
"First... shall we go wash up?"
"Yes."
Whoosh-
Under the hot stream of water from the showerhead, I shared a passionate kiss with Nahyun.
"Have you been holding back a lot?"
"Hnn... Ye-yes..."
Squish.
"Ahhh!"
I lowered my hand and gently rubbed around Nahyun's clitoris.
"How much?"
"S-so much! Ahhh!"
"Did you masturbate, too?"
"Pardon? That is... hnn..."
Squish.
"Ahhh!"
As I shoved my middle finger into her pussy all at once, Nahyun clung to me and let out a moan.
"Did you?"
"Y-yes! I did it so much!"
"How much?"
"Ha... about five times a day... I had to cover my mouth so the people in the next room wouldn't hear me... hnn."
"..."
Hearing that she had been suffering through grueling work all day, only to return to her quarters at night and masturbate five times while stifling her own cries, made me feel a pang of guilt.
'Should I have visited her sooner?'
Squish.
As I gently scraped the walls of her vagina with my fingertips, Nahyun shuddered, her entire body trembling as she released a light squirt.
Sssss-
"You're leaking from just one finger? How horny are you?"
"Ahhh! Hnn... Master..."
I couldn't tell if the liquid flowing from Nahyun's mouth was saliva or drool. But looking at her completely unfocused eyes, I knew she had reached her limit.
"Let's go out."
"Ye-yes..."
After roughly drying off with a towel, I dragged Nahyun in front of the full-length mirror.
"M-Master?"
"Yeah?"
"T-this is..."
"It's fun, isn't it? Look at the mirror... fuck, you've been working while radiating pheromones with a body this lewd?"
"N-no, I haven't..."
"The male staff must have been constantly aroused because of you."
"T-that's not..."
"What do you mean it's not? Don't bow your head, look up. Look, you're incredibly lewd right now."
"Hnnn...!"

Nahyun's reflection in the mirror was nothing short of obscene.
"Haa... I can't hold back anymore."
I grabbed Nahyun's wrists, gently laid her on the bed, and kissed her.
Slurp, smacking, slurping.
"Whew. Then..."
Squish.
As I pressed my glans against the entrance of her pussy, it gaped open, vomiting out her arousal fluid.
"Ahhh...!"
'I haven't even inserted it yet, how horny is she...'
"M-Master..."
"Yeah?"
"It's really dangerous right now... it's truly dangerous... you can't just shove it all in at once... I might really break..."
The sex I have with Nahyun is the sex of a bitch and her master, unlike the sex I have with Yuna.
I stood up, and without a single word of warning, I shoved my cock in to the hilt.
Squish-! Thud.
"Ahhh! Nooo! My cock! Hnnn! I'm gonna break! Ahhh...! Cough...! Hah! Ack! Hnn!"
Sssss-
"Ha... fuck."
Her vaginal folds warmly wrapped around my entire cock and began to squeeze little by little.
As my cock pushed in without warning and crushed her womb, Nahyun released a fountain of fluid and went limp, as if she had fainted.
"..."
'Did she faint? She's still breathing, though...'
Squish-
"Ah?! Whew! Hah! *Gasp!* Whew!"
As I gave my hips a light shake, Nahyun, who had been limp, suddenly gasped and woke up.
"Are you okay?"
"Ahhh... Master... please... fuck my pussy..."
Nahyun was begging me to fuck her, snot, saliva, and tears streaming down her face.
'The switch has been flipped properly. Shall I put some effort into it for the first time in a while?'
"Whew."
I took a deep breath, told myself I would satisfy Nahyun tonight, and began to thrust.
Slap, slap.
"Ahhh! Master! Hit me harder! Please!"
"You filthy slut...!"
SMACK!
"Ahhh!"
Sssss-
As I slapped her ass, Nahyun arched her back, released a squirt, and shuddered.
During missionary, Nahyun squirted four times. After switching to doggy style, she had already squirted three times.
I, too, was controlling my urge to ejaculate, trying to save up as much semen as possible to release it all at once.
"Whew!"
'This is truly my limit.'
I began to thrust like a madman for the final spurt.
Slap! Slap! Slap! Slap!
"Ahhh! Master! My womb is being crushed! My womb! Ahhh!"
"Ha. Fuck!"
SMACK!
"Ahhh! Hit my ass harder! Hnnn...!"
Slap! Slap! Slap!
"Whew... hah... fuck."
As I gasped for air, as if I had no energy left, Nahyun noticed I was about to ejaculate and began to move her hips on her own.
"M-Master! Cum inside! Get me pregnant! I want to have your baby! Ahhh!"
"You fucking pervert!"
I couldn't hold back any longer. I grabbed her ass with both hands, squeezed until it felt like it would burst, and thrust deep, knocking against the entrance of her womb as I ejaculated.
Splurt! Splurt! Splurt!

"Hah!"
"Ahhh! It's coming! I'm getting pregnant! Master! Ack! Cough!"
Pshhh-!
"Wow... fuck, that's a lot... Hah...!"
"Ack! My womb! Cough! My belly is so full...!"
Pop! Drip.
As I pulled my cock out of her pussy, semen dripped out one drop at a time.
"Hnn... my belly is so full... ahhh..."
Nahyun remained in her prone position, trembling as she leaked semen.
"Hah..."
Seeing Nahyun unable to regain her senses after reaching a proper climax filled me with satisfaction.
'Yeah, I did my job as a man today, too.'
But I couldn't let my guard down. The night had only just begun, and Nahyun had the day off tomorrow.
'Maybe I'll finish after about three more rounds.'
"Hnn... w-water, please..."
Nahyun seemed to be feeling a bit better, as she lay on her back and caught her breath.
"Sure."
I opened a bottle of water, took a mouthful, and kissed Nahyun.
"Mmm... mm."
I gently let the water in my mouth flow into hers.
"Whew... refreshing. Give me one more sip..."
"Sure."
'She's back in "older sister" mode...'
I filled my mouth with water again, lay down hugging Nahyun, and kissed her.
Squish, squish.
"Ahhh! It feels good! Good! Ahhh!"
"..."
The current time is 4:34 AM.
Nahyun has reached climax six times, and I have ejaculated five times.
However, Nahyun's sexual desire showed no signs of fading; every time she reached climax, it was like throwing dry firewood—no, a barrel of oil—into a fire, making it burn even brighter.
'I underestimated her.'
I had forgotten that Nahyun was still a 23-year-old college student, full of vigor and boiling sexual desire.
Of course, my healthy body wasn't tired at all, but...
'My mind is exhausted, I suppose... I originally wanted to finish after three or four rounds, lie down together, cuddle, and end the day... but thinking about it, nothing ever goes according to plan.'
Squish, squish.
"Ahhh! Your cock is huge! Cock! Ahhh!"
Nahyun was switching between her "older sister" mode and "slave" mode every time she reached climax.
Right now, she was completely immersed in her "older sister" mode, riding on top of me and thrusting her hips like a madwoman.

"Whew... hah."
"Ahhh! Hah!"
"I'm... about to..."
"Cum! Cum! Cum inside your sister's pussy! Ahhh!"
The only fortunate thing was that I could see Nahyun slowly getting tired after sending her over the edge six times.
'If I can just send her over properly this time...'
I gathered my focus, grabbed Nahyun's wrists, lifted her hips slightly, and shoved my cock in.
Thump.
"Ahhh! Ack! It's coming...! It's coming...!"
"Hah...! Fuck!"
Praying fervently that this would be my final ejaculation, I released my sixth load.
Splurt! Splurt!
"Ahhh! Hah! Ack! Hah!"
Nahyun threw her head back, froze in place, and shuddered all over.
"Hah... whew..."
"Ahhh... hnn..."
Thump.
Nahyun collapsed on top of me. Sweat was streaming down her entire body like rain.
Drip.
As I pulled my cock out, I could feel the semen dripping from her pussy onto my lower body.
"Did it feel good?"
"Hah... yes... I'm... sleepy now..."
"Yeah?"
"Whew..."
Nahyun fell asleep right there, curled up on top of me, breathing softly.
"..."
'What is this feeling of having become a living dildo?'
I carefully lifted Nahyun, laid her on the bed, covered her with a blanket, and lay down next to her.
As I turned off the lights and closed my eyes, the only sounds in the motel room were the hum of the air conditioner and Nahyun's breathing.
'This isn't bad, either.'
The fact that I had satisfied a woman to the point of exhaustion was strangely pleasing.
"Heh."
'Yoon Suhyun, you son of a...'
Filled with a man's pride, I let Nahyun's lovely breathing lull me to sleep.
"Mmm..."
Waking up now, I feel something hot on my lower body.
I used to be surprised by it, but now it's a sensation I'm all too familiar with.
I opened my eyes and looked down.
Sure enough, Nahyun was licking my cock with great care.

"Did you sleep well?"
"Yes..."
"We still have some time before checkout... let's do it one more time before we leave."
"Yes."
'How much did she have stored up?'
I think I'll have to come down here periodically to spend the night with Nahyun to prevent things like this in the future.
"But..."
"Yeah? Suhyun, what is it?"
"N-nothing..."
Unlike yesterday, Nahyun's skin was plump and glistening with a healthy glow.
'Must be my imagination... I'm not a recovery-type psychic hunter, after all...'
I looked down at Nahyun once more. To say it was my imagination would be an understatement; her skin was practically radiant, and she looked undeniably more vibrant and full of energy than she had yesterday.
I couldn't help but chuckle.
"Why? Why are you laughing? Huh?"
Nahyun pinched my abs lightly.
"No, I'm just happy."
"Really?"
Thinking I meant that the fellatio felt good, Nahyun began to lick my cock even more enthusiastically.
'Yeah... well, whatever's good is good.'
After a light round, we washed up, left the motel, and had brunch at a nearby cold noodle restaurant.
Since she had the day off anyway, she said it didn't matter as long as she was back by evening, so I decided to spend the whole day with Nahyun.
"Today is the day I decided to monopolize you."
"Yeah? Monopolize?"
"N-no. Oh, look, there's a busking performance over there, let's go!"
Nahyun grabbed my arm and started running energetically.
'She's got a lot of energy for someone who did all that yesterday.'
I spent the day with Nahyun, exploring various spots in the downtown area, eating plenty of delicious food, and walking around.
Toward evening, she said she didn't want to part ways, dragged me into a darkened shopping arcade, shared a deep kiss for about 30 minutes, and gave me a blowjob.
'Is this what adult dating is like?'
After that, I walked Nahyun to the front of the headquarters' quarters and didn't arrive home until late at night.
"Whew... it's been a long day."
I finished my shower, entered my room, and threw myself onto the bed.
It was a moment of peace that had come after several days.
Knock, knock.
Just then, I heard someone knocking on the door.
'Ah, right.'
There was still one final hurdle left.
"Can I come in?"
Honestly, I just wanted to sleep for the day, but... I didn't have the courage to refuse Yuna's nightly service yet.
"Yeah."
Yuna, dressed in pajamas, walked in with a smile.
"How is Nahyun?"
"Hmm... she's busy with work, but she seemed happy."
"Really? That's a relief... I was worried she might just be pretending to be okay when we talked on the phone."
"You don't have to worry."
"Yes... Honey, then..."
Yuna took off my pants, folded them neatly, placed them by the bedside, and climbed between my legs.
I closed my eyes and enjoyed the moment.
'Yeah. This is how the day is supposed to end.'