Sleep Correction (2)
"Hnnngh...! Mmm..."
It had been over thirty minutes since I’d started kissing Min Serin. At first, she’d been passive, perhaps awkward about locking lips with a member of the opposite sex, but as time passed, she began to move her lips actively, nibbling at mine.
By the time our lips were tangled together and the air around us had grown heavy and hot, I carefully slipped my tongue inside. Min Serin let out a moan and her entire body shuddered.
'I guess I’ve reached a new level of mastery...'
I skillfully teased the inside of her mouth with my tongue while my mind wandered elsewhere. I’d thought her request for help with masturbation meant just rubbing against her like before, but she’d told me it was fine to use my hands. However, reflecting on my sexual history, I’d almost always just inserted my cock; I’d rarely used my fingers for such play.
'Do I just treat my finger like a cock and thrust it in?'
As I pondered this while kissing her, Min Serin hugged me tighter, pressing her body against mine, and began to rub her lower abdomen against my erection.
"Hngh...! Mmm..."
She seemed unable to hold out with just kisses anymore, writhing her heated body and acting coquettishly, as if begging for my cock.
'Time to...'
I grabbed her shoulders and pulled her back. When I looked at her face, it was flushed with intoxication and arousal, her lips parted and panting, smeared with saliva.
"Huuu... haaa..."
"Serin-ssi."
"Ye-he... hngh."
"Before we start, there's something I need to know."
"Ye-es...?"
"I think I need to see how you do it when you're by yourself."
"..."
I asked because I was genuinely curious. It wasn't just that I wanted to watch a masturbation show; I needed to see her usual method so I could proceed in a way that would satisfy her as much as possible when I took over.
Min Serin looked around, embarrassed, and began rummaging through her bag.
'What... is she using a dildo or something?'
Contrary to my expectations, what she pulled out was a well-worn sleep mask.
"Is that... a sleep mask?"
"Yes... I use it when I sleep usually... I feel like I won't be able to do it properly if you're watching me, so could I wear this while I do it?"
"Sure, do as you please."
Min Serin clutched the mask and glanced at me repeatedly.
"Is there a problem..."
"I, I'm really sorry, but could you stay in the bathroom for ten minutes?"
Min Serin said, hanging her head low.
"Pardon?"
"To... to do it alone, I have to take my clothes off, and that's... a bit..."
"Ah, yes. I understand what you mean. I'll come out in ten minutes."
"Thank you!"
I grabbed a bottle of water and went into the bathroom. It might sound strange to be embarrassed about showing one's body after agreeing to engage in sexual acts, but I understood perfectly. Even Jihyun still felt shy whenever she had to undress, and even I, despite having sex with my family so often, sometimes felt a pang of shame when stripping down. It seems the resistance to being naked is etched into human instinct.
I rinsed my mouth a few times with the water I’d brought and began scrubbing my hands thoroughly with soap. When it comes to these acts, cleanliness is paramount, no matter what anyone says.
'Given the circumstances, it seems Min Serin has no experience, so should I take it slow?'
I’d only ever rubbed around the clitoris with my hands, so I had no idea how to proceed. I washed my hands clean and sat on the edge of the bathtub, waiting for the time to pass.
'Has it been about five minutes?'
"Hnnngh...! Hngh!"
Just then, a faint moan began to drift through the bathroom door.
'I thought she was just going to take her clothes off and wait.'
She must have started already, as I could hear her ragged breathing and moans.
"Hngh...! Hup!"
It wasn't the lewd, shameless moaning from that day. I sat still, listening intently. She seemed to be going at it quite intensely; sometimes the moans grew louder, and other times, as if she were holding back an orgasm, I could only hear the sound of her gasping for air.
'She's good...'
Judging by the sounds alone, she seemed perfectly capable of masturbating on her own. I began to wonder if she even needed my help.
After listening to her moans for a few minutes, I figured ten minutes had passed, so I opened the bathroom door and carefully stepped back into the living room.
"S, Seonghyun-ssi?!"
"Yes, it seemed like ten minutes had passed..."
Min Serin was lying on the bed, naked, wearing the sleep mask and thrusting her fingers into her pussy. When I appeared, she was so startled she pulled her hand out and began fidgeting with her pussy lips.
"Please... continue comfortably. I asked because I thought it would be easier for me to help you if I knew how you did it on your own."
"Yes...! Then I'll try again..."
Min Serin licked her lips, steadied her breathing, and began to carefully rub her clitoris with her middle finger before lowering it to thrust into her pussy hole.
Observation of Sexual Technique
Squish, squish, squelch.
"Hngh! Hup! Hah! Hnnngh...!"
About ten minutes after I started watching, Min Serin seemed to have forgotten I was there; she was thrusting into herself while wearing the mask, letting out lewd moans.
'She's not putting them in very deep...'
With one hand, she was twirling her nipple, while the middle finger of her other hand was inserted only about one knuckle deep, twirling around. I guessed that because she lacked experience, she couldn't fully insert her finger due to an instinctive fear of going too deep. Since I’d started watching, her pussy had been leaking fluid, and by now, the insides of her thighs were drenched.
"Hngh...! Hnnngh! Hah!"
'Is moaning a talent of hers...'
Her moans were lewd enough to rival Nahyun's. With only a single finger inserted, she sounded like a sex-crazed woman who couldn't spend a single night without a man's cock.
"Serin-ssi."
"Hngh... Ye-he-es?!"
Even as I spoke, her finger didn't stop, and she answered while drooling.
"Do you... usually leak this much when you're alone?"
"Nooo! Hngh...!"
"Hmm... honestly, seeing you now, it seems like you're doing just fine on your own..."
I spoke my honest thoughts. If she was leaking that much fluid, she was clearly doing a good enough job by herself.
"Tha-that's! It's not like this when I'm alone! It's weird! Thinking that you're watching me right in front of you makes me even more aroused...! That's why...!"
'Is that so.'
It seemed she was much more aroused by the fact that someone was watching her masturbate. 'She's a masochist too...'
"Hnnngh...! Hngh... haa... Seonghyun-ssi..."
"Yes."
Min Serin pulled out the finger she’d been thrusting with and gasped for air.
"It's weird... he-euh... it's stimulating in a way that doesn't even compare to usual... but... I don't feel like I'm going to climax..."
"..."
I think I can safely call myself a dopamine expert now. Based on my experience, with my dopamine receptors already twisted from experiencing all sorts of taboo sex, it was clear that Min Serin's threshold for climax had risen. Since her threshold had increased, it was only natural that she couldn't reach a climax through her usual masturbation. It seemed she needed my touch now.
"Then... I'll help you now."
I stripped off my clothes and climbed onto the bed, fearing that if I helped while fully dressed, my clothes would get soaked in her fluids and sweat.
"Hngh!"
When I reached out to remove her sleep mask, she let out a moan the moment my hand touched her, as if her body was already burning up. The corners of her eyes were moist, and there were tear tracks on the mask.
After helping her up, I sat behind her, supporting her limp body. I chose this position because I thought it would be less embarrassing for her.
"Huuu..."
"Then... I'll give it a try. If anything feels strange or hurts, tell me immediately."
"Se, Seonghyun-ssi, wait a moment..."
"Yes?"
"Could I keep my bottoms on...? Now that I've taken the mask off, I'm suddenly so embarrassed..."
"Please do whatever makes you most comfortable, Serin-ssi. But... your underwear is going to get soaked, is that okay?"
"I have another pair in my bag..."
"..."
'She's well-prepared.'
The moment she took off the mask, the reality of having performed a masturbation show in front of me must have hit her, as she couldn't even meet my eyes. Min Serin stumbled, put on the panties she’d left by the bedside, and leaned her back against my chest again.
"Try to relax as much as you can."
"Ye-he..."
When I touched the inside of her thighs, I felt the dampness of her fluids. She was already wet enough that I could stop rubbing her clitoris and go straight to finger penetration.
'Just one for now...'
I spread her pussy lips wide with my thumb and ring finger and lightly pressed my middle finger against the entrance.
"Hyo-ooh! Hngh!"
Min Serin shuddered violently and let out a moan. With my other hand, I gently grabbed her nipple and began to twist it. The entrance to her pussy seemed to resist fiercely as a man's finger tried to enter for the first time. When I applied a bit more pressure, two knuckles slipped inside.
Squelch—
"Hngh! Hnnngh! Hah...!"
"Steady your breathing... I'm going to put more in..."
Squelch—
"Wai-wait! He-ooh! Hyo-ooh!"
I inserted my finger about halfway and carefully stirred the inside. The inside of her pussy was hot enough to melt my finger. Every time the ridges of her vaginal wall brushed against my fingertip, the entrance would twitch, spraying a drop of fluid through the gap.
"The... panties are too much of a hindrance, I can't move my fingers freely... I'm taking them off."
"Hngh! He-eh!"
I used the hand that had been rubbing her nipple to pull off her panties and tossed them to the floor.
"Then..."
Squish, squelch, squelch—
"Hngh...! Hyo-ooh! It's weird! Seonghyun-ssi! Hngh!"
When I hooked my middle finger and scraped against the vaginal wall, Min Serin began to let out cries that transcended mere moans. Less than a minute after I’d started thrusting, she shuddered all over and cried out urgently.
Squelch, squish.
"I'm coming! I'm coming! I'm coming! This feeling! Hngh! Hngh! Stay like that! Keep going! Hngh! Hah! Hngh!"
Min Serin's body stiffened like stone, and she stopped breathing. I couldn't see her expression, but judging by the saliva dripping onto my palm, it seemed she had reached a climax.
"Pyuh-huuu! Hu-ngh! Hyo-ooh...!"
After about five seconds, her stiffened body relaxed, and she began to exhale.
"He-eh..."
Min Serin collapsed forward, panting. I felt like I’d done my part.
"Serin-ssi... did that help at all?"
Min Serin answered with difficulty, saliva still dripping from her mouth.
"It... was a little... lacking... but now..."
"Pardon? Lacking?!"
I felt embarrassed for having thought I’d been helpful. I felt ashamed for having been smug about my increased sexual experience over the past year. I couldn't end it like this, so I pushed my middle finger back into Min Serin's pussy.
Squelch—
"Hyo-ooh! Nooow! The mask!"
Squirt, squirt.
Min Serin sprayed fluid from her pussy, and it rubbed against her closed buttocks, making a lewd sound.
"I'm sorry it was lacking... I'll try one more time."
My pride was already ignited and burning bright.
"He-eh! That's not what I meant! That's not it! Hngh! It was lacking when I did it alone! Hngh! But now...! Hyo-ooh!"
"No... you don't have to be considerate of me..."
Min Serin defended me while drooling, but my pride had already been scratched.
'She's changing her words to spare my feelings even in this state...'
Squish, squish, squelch—
"Hyo-ooh! I told you! That's not it! Stop! Hngh..."
As I thrust my finger more intensely, Min Serin let out cries, her nose running.
"I'm going to spread you a little more."
"Stooop...! He-ooh!"
I politely asked for her understanding and grabbed her buttocks with my free hand, spreading them apart to get a better look at her pussy lips.
'I see...'
It seemed it would be better to bend my finger into more of a hook shape. As I bent my finger and scraped against her vaginal wall, Min Serin roared, her plump buttocks trembling.
"Hngh! Yoon Seonghyun! Listen to me! That's not it! Hyo-ooh! I'm coming! I'm coming! Hngh! Hah! Hngh!"
Sssss.
Min Serin let out a roar and sprayed fluid once more. Perhaps because I was spreading her buttocks this time, she sprayed it forcefully, and it scattered across my arm.
"Ke-hngh...! Hngh!"
Drip, plop.
I pulled my finger out and asked Min Serin.
"Was that enough this time?"
"He-euuu... hngh..."
It was hard to understand her words, but she seemed satisfied this time. My scratched pride felt like it was finally recovering.