Secret Contract with My Friend's Mom

As I wrote Slave Contract across the top of the paper, I could see Auntie Saea's hand trembling ever so slightly.

I deliberately used the same style of brackets she always put in her Tiafans post titles.

It was nothing more than a scrap of paper with zero legal force, but I still gave it a proper format—more or less. Even that wasn't perfectly accurate, but it would do.

“This much should be enough, right?”

I deliberately left out any detailed clauses about obedience or sexual service. If I spelled everything out, Auntie Saea might try to fulfill only what was written on the paper and nothing more.

I printed my name in block letters, then held the pen out to her. She took it with trembling fingers.

The moment she leaned over the table, steadying her writing hand with the other to force the shaking down long enough ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠to sign, I stood up, stepped behind her, and sank both hands into the full, heavy breasts of the seated Auntie Saea.

Molgkang ♡

I wasn’t even touching bare skin—just squeezing through the tank top—and yet a softness I had never felt before flooded my palms. I cupped the undersides and gently scraped my middle fingers over the nipple patches.

A tiny moan slipped out of her.

“Haa-eungh… ♡”

I kneaded and fondled, then gave little taps—tok! tok!—while whispering against her ear.

“Cha Saea, already getting off?”

She must not have expected the informal speech. Auntie Saea flinched, then began to tremble all over. The tips of her ears had turned faintly pink.

Getting excited by this situation just like the masochistic sow she is, huh?

“N-no… this is just a physio—haah ♡—logical reaction… hup!”

“If thinking that makes it easier for you right now, go ahead and think that.”

I pressed hard on the nipple patches a few times with my middle and index fingers, then released her breasts and returned to the chair opposite her, crossing my legs and folding my arms. The newly minted slave, Auntie Saea—no, Cha Saea—still kept her head bowed, body quivering.

“Cha Saea. Take off the tank top and peel off the nipple patches.”

“……”

She only flinched hard at my words and did nothing.

“Auntie. What did I just say?”

“…T-take off the… tank top…”

“Then why are you just sitting there? If you start holding out like this from the very beginning, how do you plan to manage going forward? This is already a breach of contract… Should I call Seoa right now?”

I reached toward the phone lying on the table. Auntie Saea shuddered violently once, then stood and began pulling the white tank top over her head. The only things left covering her breasts were the heart-shaped pink nipple patches. Even those she peeled away. Ashamed, she wrapped both arms around her bare chest and hung her head. Her face—and even her earlobes—were flushed scarlet.

“Cha Saea. Head up. Look straight at me and stand at attention!”

At the informal command she shuddered again, then locked eyes with me in a slightly stiff expression and snapped into a proper at-attention posture.

Insane. Comparing the videos to the real thing was an insult to the real thing. I didn’t know exactly how old she was, but no one would ever believe this upper body belonged to a woman with a twenty-one-year-old daughter. Her G-cup teardrop breasts looked as if they had defied time itself—not the slightest sag, pure elastic beauty. Her skin was a luminous pale white with the faintest pink undertone. And as the finishing touch, those soft pale-pink nipples set into them.

“Wow. Auntie, are you seriously a married woman who gave birth? How can breasts be this beautiful? Not even a little droop. The photos on your posts were massively nerfed, huh?”

Her lips twitched, then pressed tightly together. She gave no answer. A tear that had been clinging to her lashes slid down her cheek, past her chin, and dropped. For a split second guilt flickered through me…

Then the lust, the sadism, and the pure forbidden thrill of being able to do whatever I wanted to my friend’s mother wiped it out completely.

Two months of being crushed under my mom’s friend, plus the humiliation of how I had been treated in that sow’s posts, had already twisted something inside me. No—I had awakened to the pleasure of domination.

“Anyway, how old are you, Auntie? Ah, wait—don’t answer. Stay exactly like that.”

I left the consultation room, grabbed her bag from the reception desk, and came back. Just as ordered, she hadn’t moved an inch. Her lips were sealed; only her fingers kept opening and closing.

Damn… the way she’s holding herself back even though she wants to move is hot as hell.

I rummaged through the bag in front of her and set items on the table one by one—lipstick, concealer, paper tape, a compact mirror—until I finally found her wallet. I opened it, pulled out Cha Saea’s resident registration card, and slid it toward her together with the paper tape.

“Stick it on your forehead yourself and introduce yourself. Miss Tiafans Sow.”

I lifted my phone and aimed the camera at her. She startled and frantically tried to cover her face and chest with both arms. The small face was mostly hidden, but those huge, beautiful breasts only had the nipples and the immediate area covered—the rest of the soft mass remained fully on display.

“H-Hajun… this is too much…”

“Why? You’re the one who uploaded masturbation videos and even worse photos for random strangers to see. Suddenly shy? Why so strict only in front of me?”

“Th-those people are people I’ll never meet in my life… and… y-you… you’re Seoa’s favorite friend, so…”

Her voice cracked and grew hoarse with every trembling word.

“Oh right! Since I’m Seoa’s friend, I should tell her exactly what her mom’s been doing behind her back. It’d be even more traumatic if she found out by accident, yeah?”

“I’ll do it! I’ll do it… Just please don’t tell Seoa.”

The moment I brought up her daughter’s name, Auntie Saea switched to the polite speech she hadn’t used until now and begged. She sat back down, carefully taped both ends of the ID card, and stuck it to her slightly rounded, gleaming forehead.

“…The f-filming, maybe…”

“Tsk. Keep this up and I might just do whatever I want too?”

“No, I won’t… I-I’m sorry.”

“Start.”

I hit record and made her introduce herself. Auntie Saea placed both hands neatly on her knees, straightened her back, and looked straight into the phone.

Nice. She knows how to pose properly—must’ve seen it somewhere.

“T-today I, Cha Saea, became Kim Hajun’s slave.”

“Wrong. Completely wrong. Are you not taking this seriously, Auntie? Looking at the posts you uploaded on Tiafans, you seem pretty ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠experienced with sexual content. You’re just going to brush it off like that? Include every detail on that ID stuck to your forehead, plus your family relationships, and make it filthy. Smile while you do it. Again. Start!”

Even as her eyelids quivered, Auntie Saea forced her gaze onto the camera, lifted the corners of her mouth, and began the introduction. The expression of pure hatred and reluctance she was fighting through was… delicious.

So that’s why she used me as material in her posts. How much fun must she have had watching my ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠eyes get pulled to that filthy body of hers while I forced myself to look away because of the situation?

“I am… thirty-nine-year-old Cha Saea. I run the Pantia Pilates Center ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠in the commercial building of Anmi Apartments Complex 3 in XX-gu.”

Wait, hang on—she didn’t give birth to Seoa after becoming an adult?

“Auntie… so you had Seoa before you were even an adult? By today’s standards you’d be a high-school-parent prodigy. You’ve been filthy since you were young, huh? Couldn’t keep it in and got pregnant as a student.”

“Yes… I got pregnant from a… speed violation. Once I found out, I dropped out of school and started working early to raise Seoa.”

After that she fell silent for a while.

“Continue.”

“Yes… My address is Unit 1508, Building 307, Anmi Apartments Complex 3, XX-gu… My phone number is 010-XXXX-XXXX. F-family relations… I live with my daughter Cha Seoa, who entered Gaon University this year.”

She volunteered her daughter’s personal details without even being asked. And… looking closely, her nipples seemed to have stiffened a little during the introduction.

Getting turned on even in this situation? Damn… just how slutty are you, Auntie?

“Not just your job—hobbies and side gigs too. Be precise.”

“As a h-hobby I run an… adult account on an app called Tiafans. My nickname is ‘Married Sow Looking for a Master.’ M-my ID is se-AXseo-A.”

Pfft.

I couldn’t hold back a laugh the second I heard the nickname. Of course I couldn’t—the exact situation she had named herself after was happening right now. On the account only the nickname showed, so I hadn’t known the ID. It was made from her own name and her daughter’s.

She put her daughter’s name into the ID of the account she uses to post porn? At this point it’s hard to even estimate how much of a pervert Auntie is.

“F-from now on I will become Master Kim Hajun’s slave and serve him wholeheartedly according to the contract. Th-thank you for making my situation the same as my nickname.”

With that, Auntie Saea brought both hands together over her navel and bowed toward the camera. Even that single motion made her large, beautiful breasts sway and jiggle in a way that drove me crazy.

Fuck. I did it. Hooo…

Once the self-introduction video was finished, the tension that had been coiled tight inside me finally unwound. Truthfully, if things hadn’t worked out so smoothly thanks to Seoa—if Auntie Saea had decided she was going to take me down with her and reported me—my life would have been over. And if I hadn’t spent the last two months being ground down by Lisa-noona, drowning in humiliation, I probably never would have acted this recklessly either. I had needed somewhere to dump all that frustration and shame, and Auntie Saea had floated to the surface. Well… the result was good, so it had turned into a blessing in disguise.

“Now take the rest off and get into the naked dogeza you’re so good at.”

“…A-alright. I’ll do it.”

The second the introduction ended she switched back to informal speech. Apparently Auntie Saea was treating the slave contract as a kind of play—something that naturally returned her to her normal self the moment each scene finished.

Even better. This is how she gets stained little by little. I never expected her will to break from the start anyway. But the way she flinches so obviously every time I talk down to her… is she actually getting off harder because it’s coercive?