The Society’s Pet Daughter

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“THWACK—!”

“Ahh…!”

Every time the thick leather brushed against my skin, a searing pain spread across my backside.

My eyes were already soaked with hot tears, and endless moans escaped between my lips.

THWACK—!

“Hnngh…! Please, stop…!”

I squeezed my eyes shut and bit my trembling lips.

However, when Lilian’s palm gently caressed my backside, the burning pain mysteriously subsided in an instant.

“Tina, how should you address me?”

“H-hnngh…”

I hung my head at Lilian’s words. I was at my breaking point. Someone like me, with such weak willpower to begin with, could never endure the pain left by this heavy whip.

“Ah… hnng… uh…”

Yet ironically, what truly tormented me wasn’t the searing pain on my skin.

My legs and waist were spasming and trembling slightly. Like an aspen tree shaking in the wind, this uncontrollable trembling wasn’t just from the pain.

‘I-I can’t hold it…’

The mysterious mark Lilian had inscribed on my lower abdomen.
From the moment this mark was inscribed—meant to purify unnecessary waste into clear water—my legs began trembling uncontrollably.

‘Please… bathroom…’

Since then, what had been constantly tormenting me was this biological need that felt ready to burst.

Instinctively, my body tried to curl up its legs, but firmly fixed to the ground, they wouldn’t budge.

Spread-eagled and bound, all I could do was grit my teeth and endure the overwhelming pressure.

With all my muscles tensing up, it was difficult to move at all.

However, my determination to endure somehow crumbled all too easily.

THWACK—!

“Hnnngh?!”

As the whip landed on my backside again, the sharp pain drained all strength from my lower body.

“N-no…!”

For a brief moment, something hot and weak slightly dampened my underwear.

“Hnn… hnng… ah, ahh…”

Though it was just a tiny amount, there was no mistaking what that damp sensation was.

The realization that I had leaked in my own underwear made my face flush red with embarrassment. A tear rolled down my cheek in self-loathing.

“Tina, would you try addressing me?”

Lilian, seemingly unaware of what had happened, continued to gently stroke my backside with the same calm gaze.

“S-stop… please…”

I couldn’t take anymore.

If Lilian struck me even once more with that heavy whip, the pride I’d been desperately holding onto would crumble instantly.

“Tina?”

Showing that woman my loss of control was worse than death.
It was the final line I absolutely couldn’t cross in my heart.

That’s why, in the end, I had no choice but to follow Lilian’s words.

“P-please stop… please…”

A thin, trembling voice escaped my lips.

“…How should you address me?”

“B-big sister Lilian… hnngh…”

Lilian’s eyes widened in surprise.

Soon, a faint blush spread across her face, and she smiled tenderly as she reached out to embrace me gently.

“That’s right, well done, Tina. I’ll stop the whipping now.”

“Hnn… hnng… hic…”

“I love you. I’ll have to think about what reward to give my good pet.”

“Hnngh… hic… hnnn…”

Seemingly noticing something strange in my unstable crying, Lilian looked at me with slightly bewildered eyes.

Her hand gently caressed my cheek. With my face hot and flushed with embarrassment, I kept my head down and barely managed to speak.

“Big sister Lilian…”

“Yes, Tina?”

“Bath… bathroom…”

“Pardon?”

Lilian tilted her head with a puzzled expression. Unable to avoid her gaze, I bit my trembling lips and looked at her desperately through tear-stained eyes.

“I… I can’t hold it anymore… please let me go to the bathroom…”

A moment of silence.

My plea echoed trembling in the air. Lilian stared at me wordlessly with wide eyes.

Her pink irises rippled like dark waves for a moment before her lips curved into a gentle smile.

“Of course. A pet’s biological needs are the owner’s responsibility to manage.”

She slowly undid the restraints on my legs.

Though my freed legs immediately trembled as if trying to release their tension, I forcefully suppressed my urges by crossing them.

“Well then, shall we go to the bathroom, Tina?”

When I timidly nodded, Lilian responded with that same smile and nodded back.

She carefully placed both hands on my thighs.

Then she applied force and lifted my legs strongly.

“Eek?!”

An embarrassing position with my legs lifted while my arms remained bound to the ceiling.
In this startling situation, I looked at Lilian in panic and cried out.

“L-let me go!”

“Tina, you’ve dropped the formalities already?”

“P-please let me go… please… I really can’t hold it anymore…”

Lilian’s eyes sparkled with a mischievous light.

“Come to think of it, we were supposed to do bladder training today, weren’t we? This works out perfectly.”

A voice filled with playful teasing.
Lilian slowly traced circles with her finger over the mark inscribed on my lower abdomen.

“Since the bathroom for Tina isn’t ready yet, we’ll train here today.”

“W-what do you mean by…!”

Lilian took one step closer.

“Now, Tina. From now on, this will be our first promise.”

Close enough that our breaths mingled.

Lillian looked at me with calm yet excited eyes.

“Every time Tina keeps this promise, I’ll stamp it for you. On the contrary, if you break the promise, you’ll face the appropriate punishment.”

“What kind of nonsense…!”

“…”

“I… I don’t know what you mean.”

Faced with Lillian’s serene gaze, I instinctively shut my mouth and held my breath.

“When Tina earns a hundred stamps, I’ll let you leave this place.”

What?

She’s… going to let me leave this place?

“Is that… really true?!”

A faint smile spread across Lillian’s face.

“Yes, and from now on, I won’t care about whatever Tina does. Additionally, I’ll give you my entire fortune.”

I wasn’t interested in her fortune, especially in this situation. But the promise of escaping this prison-like place was a tempting offer beyond measure.

“Are you really going to let me go? Truly?”

“I swear.”

“What promise do you mean?”

If it meant I could escape this hell, I was ready to do whatever Lillian asked.

Swallowing the deep-seated resentment that rose within me, I waited for Lillian’s next words.

“The first promise is that you’ll only relieve yourself when I permit.”

Absurd words.

It was truly outrageous.

Inwardly, I wanted to curse at the saintly figure in front of me, but saying anything wouldn’t change a thing. It would only make the situation worse.

It seemed she really intended to treat me like a pet, but if that’s what she wanted, I’d go along with it.

“…Fine, I’ll relieve myself only when you take me to the bathroom.”

“It’s Lillian *sister*, right?”

I hesitated for a moment, but, swallowing my pride, I answered.

“…Yes, sister.”

A satisfied smile appeared on Lillian’s lips.

“Hehe, good.”

“Then, since I’ll keep the promise… please take me to the bathroom now.”

Inside, I was close to bursting.

With my legs spread and restrained in this current position, it was even harder to hold it in.

Lillian tilted her head slightly and added.

“And there’s one more thing. I’ll only allow you to relieve yourself when I give a special signal.”

“A… a signal?”

Now, my whole body was starting to tremble with each word.

“Engrave it well into your mind.”

She placed one of the hands that had been holding up my legs onto my lower abdomen.

Then, her fingers began to move in gentle, circular motions.

“This is the signal that I’m allowing Tina to relieve herself.”

The moment Lillian finished speaking, her lips suddenly covered mine.

“Mm?”

Her tongue slid softly but firmly between my lips.

With her warm breath, the tip of her tongue lightly brushed against mine, exploring every corner of my mouth.

*Smack— Smack—*

“Ah… Ah… Hmph…”

My body trembled from the unexpected kiss.

Lillian’s breath and mine mingled, sending a strange shiver through my body.

The physiological pressure in my lower abdomen only intensified as a result.

The discomfort became increasingly difficult to endure, and only my fingers and toes quivered as they curled.

And then, Lillian pressed down on my lower abdomen with her finger.

Her finger dug deeply, stimulating my lower belly from the inside.

“Hnn—?!”

Her tongue continued to probe inside my mouth while her finger mercilessly pressed against my abdomen.

With the intense pressure on my already strained lower abdomen, I felt as though I was on the verge of losing control.

“St… stop..! I… I need the bathroom…!”

“Tina, just go ahead.”

I opened my eyes wide and looked at her.

“Wh… what…?”

“This is the signal that it’s okay to relieve yourself, so don’t hesitate, go ahead.”

She nodded with a smile.

This couldn’t be happening.

What was she saying?

Here… she wanted me to go here?

I shook my head vigorously in defiance.

No, surely not.

She wanted me to relieve myself right here?

“No, I can’t! This is crazy!”

*Smack- Smack- Press- Press- Smack- Press*

Desperate cries spilled out, but Lillian just looked at me with a firm gaze as she continued pressing down on my lower abdomen and covering my lips.

“N… No! Please, no… Stop!”

“Beginnings are always difficult for everyone. But Tina, I believe you can do it.”

“Pl… Please… No, I… I need the bathroom…!”

Desperately, I begged, but Lillian answered with a passionate kiss on my lips, pressing her hand on my abdomen with even more force.

“No… I can’t… Please, stop…”

My tear-streaked voice pleaded, but Lillian’s expression didn’t falter.

“Tina, don’t you want your stamps? You need a hundred to leave.”

“No, no… please, no… I… I can’t…”

My mind went blank.

All my nerves were focused below, and the unbearable pressure rising from my lower body pulsed through my entire body like waves.

My whole body began to shake, the tingling sensation tightening every part of me.

“Ah… Ahn…”

My wrists were bound tightly, stretched toward the ceiling, and one leg was awkwardly lifted in Lillian’s grip, held in a humiliating and revealing position.

In such a position, I had no dignity or pride left; all I could do was surrender to Lillian.

“N… No…!”

*Gnash*

With all my strength, I bit down on Lillian’s tongue.

Her face twisted, her forceful movements stopped.

Gasping for air, I looked at her with desperate eyes.

“I… I can’t hold it… Sister Lillian, please… the bathroom…”

My voice was weak, almost breaking, my breath coming out in desperate gasps.

At this moment, begging was all I could do.

“…”

The silence grew longer, and just when it became impossible to bear—

“Hm?”

Lillian’s lips once again captured mine.

Her lips forced their way in, and the metallic taste of blood mixed with her saliva and spread to the tip of my tongue.

And then, her finger resumed pressing down on my lower abdomen.

“Ah… No, I… No, please…!”

“Tina, you don’t need to hold back. It’s a natural function; there’s nothing to be embarrassed about.”

“Ah, n… no…! Please, just…”

“Hm… I suppose it can’t be helped. I’ll help you this first time.”

Lillian sighed briefly, removed her finger, then placed her open palm over my lower abdomen.

Knowing her intent, I trembled as I pleaded.

“Please… don’t… I beg you…”

“It’s okay, Tina. Your master gives you permission, so just let it out.”

As soon as she finished speaking, Lillian pressed down firmly on my lower abdomen.

*Press—*

Her hand wasn’t light. Feeling the pressure, my body shuddered in response, almost instinctively, at the soft stimulus.

“Ah… N… No, I can’t…!”

“Hurry.”

Lillian urged quietly, her voice like a commanding order.

At that moment, my last bit of resistance crumbled.

“Huh?”

For a very short moment, it felt like time stopped.

My mind went blank, and the pressure weighing down on my abdomen transformed into a sense of relief.

And soon—

“Ah… No… I can’t… I, I’m…”

A warm stream flowed between my legs.

All the tension left my body, and an uncontrollable sense of release overwhelmed me. The spreading warmth made my fingers and toes tremble with small spasms.

“Huh? N… No, stop…”

“Good girl, Tina♡”

With a faint blush, Lillian smiled.

She held me even tighter around the waist.

Mine and Lillian’s bellies pressed against each other, warm and close, like a kiss.

And soon, I could clearly feel Lillian’s lower half dampening.

“Ah, shhh, no… Hmmm, no, no, no… Ahhhh.”

“Hoo hoo, that was quite a lot.”

“Ah, ugh, huh… …”

“That’s nice and relaxing, isn’t it, Tina? Good job,” Lillian whispered in my ear, her voice soothing as she patted my twitching hips.

She didn’t seem bothered at all by the mess between us; if anything, she held me closer.

“I love you, Tina,” she murmured, then kissed me again, deeply.

The frustration inside me eased as I opened my mouth, accepting her. My mind, already hazy with shame and self-doubt, felt like it was unraveling.

“Ah… black, hmph, shi… hate… don’t look… don’t look…”

“Tina, you’re so beautiful,” she said softly.

“Hm… ah, ah, ah… no, don’t look…”

“No. You’re beautiful, and no matter what you think, I’ll always love you. I promise.”

Don’t lie.

You don’t want to see me like this.

Soon enough, you’ll hate me.

“Ah, hmm, ugh…”

But why?

Her promise to love me always…

The desire to believe her words blossomed in the back of my mind, even as doubt crushed my spirit.

“Ha…yes, I’m here, Tina.”

“I… I really despise… ha, won’t you…?”

“I swear to the goddess. So, will you let the rest of it go?”

“Ah… uh… hmph…”

In the end, I helplessly gave her my mouth, my back arching as I trembled.

Tsk-tsk-tsk-tsk.

Between my increasingly damp legs, I surrendered myself to Lillian, closing my eyes.