Chapter 369: Bathroom (4)

Han Seon-ah had her vagina naturally penetrated by my penis inside the bathtub.

Perhaps because it echoed in the bathroom, her moans felt particularly loud, and my penis also twitched as if pleased.

Seon-ah, penetrated by my penis, panted her lustful body atop me with lewd cries.

“Huuuueut, ha, haa, hauuu….”

Even though it hasn’t been long since I helped her relieve her heat, seeing her let out such lewd sounds, she really is an incredibly lustful younger sister.

Watching her lewd state, to the point where it’s unbelievable for someone who just graduated high school, I whispered my thoughts into her ear.

“It hasn’t been long since I helped you relieve your heat, and yet you’re already making such lewd sounds.”

“O-Oppa… You’ve already cum twice, but you still have your penis erect, which is more lustful than ours…”

-Jjilkkeueup!

“Ahueueueut…!”

Every time she uttered those insolent words, I thrust my hips a little harder, and my younger sister immediately calmed down.

As I was fully enjoying her pussy in the water…

From across the way, Jin-ah’s gaze, which had been watching me and Seon-ah, cautiously met mine.

“……”

“……?”

Like she was eyeing some prey, Han Jin-ah alternated her gaze between me and Seon-ah.

She, positioned across the bathtub, leaned her body forward and slowly approached us.

Jin-ah’s hands, which had reached right in front of Seon-ah, moved without hesitation towards the breasts of my younger sister, who was shaking her hips atop me.

-Kkwaak.

“Huut?!”

Startled by the sudden, unexpected touch, Han Seon-ah let out a flustered moan.

Still feeling my penis, she belatedly grasped the situation, and her gaze naturally shifted towards Jin-ah below her.

While even I couldn’t figure out what was happening, Seon-ah cautiously asked her older sister.

“U-Unnie…?”

“Why, Han Seon-ah?”

“W-What are you doing… Eughht, hteut?!”

“What am I doing~? In the sex Seon-ah and Oppa are having, I’m just helping you feel it better~.”

With a chuckle, Han Jin-ah began to knead her younger sister’s nipples, now in her hands, with both hands.

Perhaps because she’d experienced it herself once, even while kneading someone else’s nipples, her hand movements were quite skillful.

To the pleasure she felt from above and below, Seon-ah continuously let out lewder moans.

“Didn’t you just say it yourself, Han Seon-ah? You said you don’t cum as easily as I do during sex with Oppa.”

“Th-That’s true, but… Agueut?!”

“And didn’t you just say this to Oppa~? ‘Do the same thing to me that you did to me.'”

“…N-No way….”

“That’s why I’m helping~. So that you, Han Seon-ah, can also feel it as much as I do during sex with Oppa.”

“Huneueueut?!”

The moment Jin-ah finished speaking, Seon-ah’s nipples twisted in both directions.

As if it flipped a switch, my younger sister, held in my arms, let out another intense moan.

That reaction was even palpable in my penis, which was currently deep inside Seon-ah’s body.

Even without that, due to my hand pulling her hips, her vagina was already gripping my penis with stronger pressure than before.

Perhaps because of the heightened sensitivity from that, the pressure gripping my penis also momentarily intensified.

After that, Han Seon-ah continued to let out deeper moans atop my body several more times.

“Heeet…. U-Unnie…. Okay, so stop now….”

“No~. This is punishment. You’ve been talking back to your Unnie a lot lately~.”

“I-I wasn’t really talking back…! Haueut, uueeung…!”

“A naughty younger sister who keeps disobeying her Unnie… …gets treated like this.”

With those words, Jin-ah opened her mouth and brought it directly to Seon-ah’s right breast.

Soon, Seon-ah, with one of her breasts being bitten, began to cry out in even lewder tones.

“Huyaaeueeung…!”

Between me and Jin-ah, her body being attacked from above and below, Han Seon-ah continuously screamed ecstatically.

This strange situation, like sharing Seon-ah between Jin-ah and me, was enough to arouse me.

-Haljjak, haljjak.

“Ahueut, I, I understand, Unnie! Just please stop touching my breasts…!”

-Jjilkkeok, jjilkkeok.

“Just thinking about Oppa’s penis, Hieut, it’s hard to endure…! T-This way, Ha, simultaneously from above and below…!”

With Jin-ah’s assist, inside my younger sister’s tightly gripping vagina, as I had been moving my penis for several minutes, the urge to cum began to build in my lower body.

Just before that sensation exploded, with a slack expression, I repeatedly called Seon-ah’s name, signaling my imminent climax.

“I’m gonna cum inside you, Seon-ah!”

“Nghueut! Y-Yes, Oppa! Inside! Please cum inside me…!”

Even while her breasts were being caressed by her older sister, Han Seon-ah understood and answered me.

I shook her body more several times in the water, and at the final moment, I forcefully thrust my penis upwards from below.

From Seon-ah’s mouth, which received my penis deep within her body, soon, waterfall-like screams of ecstasy began to erupt.

“Huu, haaaaaang…!”

Seon-ah refilled her vagina, which had been cleanly washed once, with the white discharge from earlier.

It was already the third climax of the day, but my penis hadn’t lost its vigor and continued to cum repeatedly.

Finally, after all the sex was over, Seon-ah collapsed onto my body as if leaning on me.

『Awakening Points Acquired +100 (Base 80, Bonus 20)』

“Huuu, ueut, ha, huuu….”

Even after receiving internal cumshots, as if the aftereffects lingered, Han Seon-ah trembled her whole body atop me several times.

Seeing her like that reminded me of Jin-ah on the bed earlier, and I unintentionally smiled.

As expected, seeing them like this, sisters are indeed sisters.

“…Now you know it’s not like I cum easily or anything, right? Since even you, Seon-ah, cum so helplessly.”

“Yes, hehehe….”

…Seon-ah cumming so much like this has nothing to do with my own climax, doesn’t it?

Comparing myself, who came solely from your touch, and Seon-ah, who came from the combined assault of you and me, seems a bit shameless, doesn’t it?

As I stared incredulously at Jin-ah’s confident expression, eventually, Jin-ah’s gaze met mine.

Whether she realized she’d said something absurd even to herself, she strangely avoided my gaze and started to get up.

“W-Well then…. Oppa’s erection is gone now, so I should probably get out….”

“…Where do you think you’re going.”

“Heung-aat?!”

As I pulled Jin-ah, who was trying to sneak away, her body gently landed atop the bathtub.

With a slight splash, Jin-ah fell back into the tub, immediately becoming entangled with me and Seon-ah.

“Are you planning to let Seon-ah have all of Oppa’s erection and then just slip away yourself?”

“Bu-But… Seon-ah already relieved him, so it doesn’t matter, right…? I-I’m still fi-fine…?”

Looking at the expected acquisition points floating next to her face, it seems Jin-ah still has some pent-up desire left.

Perhaps she’s worried about the inevitable consecutive orgasms that will follow the moment we start sex again. Or maybe she’s trying to be considerate of my penis, which has already cum three times.

Of course, regardless of the reason, it wasn’t a reason to skip sex with Jin-ah right now, so I pulled her arm closer to me.

After withdrawing my penis, which had just finished cumming inside Seon-ah. My penis, which had subsided momentarily before becoming hard again, I thrust it towards her.

“Sorry, but I’m not quite finished yet.”

“Huh… Huh?”

“It seems I need to go inside your pussy, Jin-ah, to be completely satisfied. What do you think?”

“……”

At my penis thrust before her, Han Jin-ah blushed silently.

Taking her silence as affirmation, I pulled Jin-ah’s body onto mine, now empty after Seon-ah moved away.

Just before insertion, Jin-ah, wearing a shy expression, whispered a request in my ear.

“O-Oppa….”

“Yeah?”

“…If we’re going to do it again, please kiss me while we do it this time….”

-Jjigeok!

“Heung-eueueueut?!”

Jin-ah’s adorable little request stimulated my instincts, and instinctively, I pulled her hips towards me.

Since she had already been sufficiently relieved earlier, Jin-ah’s body swallowed my penis without resistance, even with the sudden insertion.

“Hoot, ha, hagheuueeung…!”

Of course, as a result, she reached orgasm the moment I entered her this time too, which was unavoidable.

Helping Jin-ah relieve her heat meant I would have to get used to such sensitive reactions in the future.

To help her orgasm subside a little, I pressed my lips against my younger sister, who had reached her climax with a foolish expression atop me.

-Chueup, chueup.

“Hahup, heup, heung….”

-Chueup, chueup, chueup.

“Heuheup, eup…. Hah-eum….”

The moment my lips approached, Han Jin-ah immediately began a deep kiss, sharing her tongue.

She couldn’t seem to get used to sex or foreplay, yet seeing her become so proactive with kissing was quite something. It was impressive in many ways.

As soon as we kissed, the tumultuous reactions from moments ago calmed down stably.

She mentioned having a fetish where she feels secure when kissing, so conversely, feeling excessive orgasms might be a symptom of emotional instability.

Whether this is Jin-ah’s inherent tendency or due to other factors, I don’t know.

Regardless, if my kissing could help my younger sister have a more pleasant sex experience, I was willing to offer my tongue and lips anytime.

Inside the bathtub, she and I quietly kissed while continuing a slower pace of sex.

-Chalp-bak, chalp-bak.

“Mmm, mmm….”

The squelching sounds of our cocks and cunts rubbing together were masked by the sound of the water, and the only clear sounds were the faint moans transmitted through our lips.

In our slow sex, like floating through space, Jin-ah and I gradually increased the speed of our hip movements.

Matching that, Jin-ah’s moans also became shorter, stronger, and faster.

-Chalp-bak, chalp-bak, chalp-bak!

“Huu-eup, eup…! Heug-eup, eup, heub…!”

With our lips locked, I could directly feel on my body my younger sister’s lewd moans.

And below, the tight, lustful flesh of her vagina.

Perhaps thanks to the effects of the aphrodisiac, despite the consecutive climaxes, my penis quickly regained its condition and was ready to cum inside Jin-ah’s body within minutes.

Just before delivering the second internal cumshot deep inside my older younger sister, I finally broke away from our kiss and called her name.

“I’m gonna cum inside you one more time, Jin-ah!”

“Nghueut…! O-Okay…! Taekyung Oppa…!”

Even while exhausted, she called my name, preparing to receive the internal cumshot.

As I pulled her hips down, I forcefully arched my back upwards.

Ultimately, with the second cumshot in the bathtub, Jin-ah, just like Seon-ah, received her second internal cumshot.

“Humeueueueut!! Haget, hueat, haaeueeung…!”

It seemed no different for the second time, as Jin-ah greeted a grand orgasm again with loud cries.

Only after her body collapsed onto mine did I pick up Jin-ah and step out of the bathtub.

Finally, after rinsing everyone’s bodies under the shower, the long, long bath for the three of us concluded.

『Awakening Points Acquired +100 (Base 80, Bonus 20)』