ONYX FICTIONThe Hidden Depravity of the Year-End Party Night: The Forbidden Night Between a Graduate Student Girlfriend and the Company Manager and the Ensuing Entanglement
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The Hidden Depravity of the Year-End Party Night: The Forbidden Night Between a Graduate Student Girlfriend and the Company Manager and the Ensuing Entanglement

♙ Anonymous◷ 2026-08-19◉ 0

At the company year-end dinner, my graduate-school girlfriend Jiaqi attended wearing a sexy dress. Wang, the manager from the neighboring department, kept drawing closer under the pretext of toasting, and finally used drugged red wine to make her body abnormally sensitive. The forceful caresses in the restroom made her lose control, after which she was taken to a motel to spend a night of heightened desire. The implantation of a nipple ring became a permanent mark on her body, and this hidden relationship continued to intensify during a later trip to Thailand.

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It was once again the annual year-end banquet.

My company's size isn't exactly big, but not exactly small either, roughly seventy or eighty people, considered a medium-sized foreign enterprise. The higher-ups always like to instill in us the concept of a 'small team fighting big battles,' so the year-end party is naturally unavoidable. Personally, I don't really like this kind of socializing, but I still have to show up for appearances. Being unmarried, I brought my girlfriend Jiaqi along to attend.

I was wearing a formal suit and tie, sitting with colleagues from the same department at two tables near the corner. Jiaqi today wore a white sleeveless, tight-fitting dress with a deep V-neckline paired with a silver necklace. The hem of the skirt was about thirty centimeters above the thighs, layered with black stockings and high heels. Her hair was up in a bun, giving her a sexy yet intellectual vibe typical of a graduate student. Her fair, delicate skin and attractive figure were particularly striking under the lights.

Many male colleagues stared wide-eyed at Jiaqi, who was still a student. The deep V-neck revealing a hint of cleavage made quite a few people feel intoxicated even before drinking. Throughout the banquet, people kept finding excuses to get close by offering food or toasting, though most still cared about face and didn't dare go too far.

The only exception is Manager Wang from the neighboring department.

His real name was Wang Raoshu, but everyone privately called him “Mouse.” He was slightly overweight, with two small mustaches, and his eyes always carried a sly, shrewd look. He was capable at his work and knew how to curry favor with those above him, so he was doing quite well. But he wasn't very popular; including me, many people didn't really like him.

Today he just happened to sit next to Jiaqi. After several rounds of drinks, Jiaqi was persuaded by everyone to drink a few glasses of red wine; her fair skin gradually flushed rosy, and her tipsy look only added a few more shades of charm.

When my deskmate dragged me to play drinking games with other departments, Mouse started chatting up Jiaqi.

“Classmate Lin, let me toast you. Still studying, huh? How long have you been dating Ajie?”

Jiaqi politely responded a few times. The mouse introduced himself as “Brother Wang” and boasted about how he took care of me. Jiaqi, constrained by the situation, could only respond politely. The mouse seized the opportunity to keep urging her to drink, and Jiaqi gradually became unable to hold her liquor, so she said she would stop drinking for now.

The Rat looked at the slightly drunk Jiaqi, her full breasts rising and falling with her breath, her pink lips particularly tempting under the light, his gaze growing increasingly blatant. He picked up a piece of cream cake and brought it to Jiaqi's mouth. Too embarrassed to refuse, she had just opened her mouth when he also stuffed his finger in, saying, 'Lick the cream clean.'

Jiaqi took his finger into her mouth and used her tongue to clean the cream off it. Mouse’s other hand quietly stroked her thighs wrapped in stockings, and he lowered his voice to say some explicit things, even directly suggesting he would take her home or go to a hotel.

Jiaqi broke free of his fingers and refused with a red face. But Mouse took advantage of her momentary lapse, and his fingers quickly slipped between her legs, pressing through her thong onto the already somewhat wet spot. Jiaqi’s body shuddered, and she almost cried out. The alcohol, combined with the other party’s experienced technique, made her briefly lose her senses.

Just as she saw me at the other end of the restaurant toasting with the executives, she suddenly snapped back to reality, forcefully pushed the rat away, and sternly refused.

Mouse wasn't annoyed either. He deliberately knocked over her wine glass, spilling red wine on her white skirt. He 'apologetically' suggested she go to the restroom to deal with it, otherwise the stain would be hard to wash. Jiaqi glared at him angrily but still stood up and headed to the restroom. Mouse followed with a grin.

The women's restroom in the basement was empty.

Mouse pulled Jiaqi into his arms and forcibly kissed her. His tongue forcefully probed into her mouth, entangling with hers, while his hands were not idle—one slipped under the hem of her skirt, continuously stimulating the already moist spot through her stockings and thong; the other roamed over her body. Jiaqi was kissed until her breathing became disordered, and her body went limp.

The Rat whispered in her ear that he had already added something to the red wine earlier; if she didn't thoroughly vent tonight, she simply wouldn't be able to sleep. Jiaqi was both shocked and angry, but the continuous caresses made her legs weak. The Rat had her lean over the bathroom counter, facing the mirror to take off her dress. Blushing, under the persistent teasing of his fingers, Jiaqi removed her clothes piece by piece, revealing a black bra, garter belt, and thong.

When she completely took off her dress, the mouse quickened the movement of his fingers. Jiaqi finally couldn't hold back, her body trembled violently, reaching climax, and she weakly leaned into his arms.

The Rat had her send me a message first, saying her clothes got dirty and she was going home early. Jiaqi nodded weakly. Then he took her away, heading straight for a nearby motel.

In the hotel room, Jiaqi lay on the bed, facing the floor-to-ceiling mirror. Mouse entered her from behind, his movements heavy and deep. The sound of flesh colliding echoed in the room. Jiaqi was thrust forward repeatedly, her beautiful hair disheveled, continuous moans spilling from her mouth. She was pushed to climax again and again, and later even actively asked him to cum inside.

After it was over, the two embraced, panting. Mouse, still unsatisfied, carried her into the bathtub. He used a pair of handcuffs to secure her hands and, while 'bathing' her, continued caressing her chest and between her legs. He took out his phone and showed her the photos he had taken along the way—from undressing to various positions, to the fluids afterward. Jiaqi felt both embarrassed and annoyed but could only urge him never to let me know.

The Rat, emboldened by success, proposed giving her a pair of nipple rings. Jiaqi initially refused, afraid of the pain. The Rat promised anesthesia, good technique, and said many models had them. In the end, Jiaqi bit her lip and compromised.

The piercing master arrived quickly. After anesthesia, a medical steel nipple ring was put on, adorned with a gemstone pendant. Jiaqi stood in front of the mirror, looking at the new decoration on her chest, feeling both unfamiliar and strangely sexy. The master reminded her not to let water directly hit it this month and not to wear a bra. Mouse excitedly took a few more photos, then pressed her back onto the bed, continuing to demand.

……

Late one night during the trip, I returned to the hotel close to dawn. The tour leader had us drink a bit more, so I came back later than the other group members. Pushing the door open, I saw Jiaqi asleep, with a metal collar around her neck and a special pair of panties on her lower body that couldn't be taken off, also with a lock.

She stammered, saying it was a souvenir she bought while I was away, and the key would be mailed after returning to the country. I was half-convinced, half-doubtful, but didn't press further. Because she had said she wasn't feeling well the past couple of days, I had been holding back for several days. Seeing her offer to help me with her mouth, I naturally didn't refuse.

Jiaqi knelt between my legs, and her technique was unexpectedly good. Just as I was about to reach the peak, the doorbell rang. Team leader A Biao and President Yang were outside calling for a group activity, and they also mentioned “yesterday’s footage.” Jiaqi’s expression changed, and she immediately agreed to go participate.

By the time we got to the poolside, Yang Dong's group of five and a local girl named Judy were already having fun. Yang Dong later told me privately that the collar and that special pair of pants were bought by him to "give" to me, and that he held the key. He suggested playing some stimulating game: if I won, the key and VIP card would both be mine; if I lost, I only had to agree to one thing from Jiaqi.

At this point, Jiaqi and I could only grit our teeth and agree.

After the game started, the intensity escalated quickly. Director Yang and his group had clearly planned this in advance, with various punishments and rewards revolving around physical contact. Jiaqi, restricted by the collar and the pants she couldn't remove, gradually got drawn into more extreme activities. Watching from the side, I felt conflicted inside, yet a twisted sense of excitement kept me from truly intervening.

That night, the lights by the pool, the sound of water, and the sounds of entangled bodies mixed together. Jiaqi was pushed to the edge of climax again and again, the pendant on her nipple ring swaying lightly with the movements, making faint sounds. Chairman Yang and the others took turns approaching, using various ways to play with her body, which was already sensitive to the extreme. And I, in the end, did not stand idly by either.

By the time everything ended, the sky was already bright. The key was handed to me, but some things could never go back to how they were before.

Jiaqi leaned against my shoulder, her voice very soft: “After we go back... will you still want me?”

I didn't answer immediately, just tightened my embrace.

Some doors, once opened, can never be closed again. And this secret relationship that started on the tail-end night is far from over.

After coming back from Thailand, Jiaqi and I superficially returned to our previous lives. She continued graduate school, and I went to work as usual. But some things had already changed.

The nipple ring on her chest was still in the adjustment period. The master had said to avoid water as much as possible this month and not to wear a bra. So she could only wear loose clothes in class, trying to cover up the provocative outline. But it was hot in summer, and the thin shirt still faintly revealed the shape of those two points lifted by the metal rings. Once, when she stood up in the classroom to answer a question, the male classmate in her group noticeably paused for a moment. She pretended not to see, but the tips of her ears quietly turned red.

What's more troublesome is that special pair of panties. Although the key is back in my hands, Jiaqi said she's not used to it yet and occasionally still asks to be locked up for a few days. She said the feeling of being completely restricted makes her inexplicably nervous and excited in her daily life. I didn't understand at first, until one time she locked herself in front of me, and she was soaking wet all night. Only then did I vaguely grasp that psychological stimulation.

On the company side, the mice had not restrained themselves at all.

After the year-end party, he became even bolder. Sometimes he would find an excuse to send me away and ask Jiaqi to 'discuss work' alone. Once, I returned to my desk after a meeting and saw him standing beside Jiaqi, his hand resting casually on the back of her chair, his thumb subtly stroking the nape of her neck. Jiaqi's body stiffened slightly, but she didn't make a scene. After the rat left, she let out a soft sigh and whispered to me, 'He just said near my ear that he wanted to see the nipple ring again tonight.'

I was furious, but didn't know how to vent. After all, I was fully aware of what happened that night, and even tacitly allowed some of it later.

What truly caused the relationship to completely change in nature was a weekend a month later.

That day, I worked overtime. Jiaqi said she was going to the school library to look up materials. After ten at night, I got home and found she wasn't there. Her phone was unreachable. Just as I was about to go out looking, the door lock sounded.

When Jiaqi walked in, her hair was a bit messy and her lipstick had faded. She saw me, froze for a moment, then gently closed the door.

“Where did you go?” I asked.

She didn't answer immediately, instead walked over to the sofa and sat down, looking down at her fingers. After quite a while, she said, '... Manager Wang said there was an urgent document to deliver and asked me to help run it over. Later... I went to his place.'

My heart sank. 'And then?'

Jiaqi raised her head, her eyes a little red, but she was very calm. “He wants to see the nipple ring. And he also wants... to do it again. I said no. But he took out his phone, pulled up the photos he took on the year-end party day, and showed them to me. He said if I didn’t behave, he’d post them in the company group chat.”

The air seemed to freeze.

"You agreed?" My voice was a little dry.

She nodded, very softly. 'I was scared. I was scared you'd get implicated, and scared those photos would really get leaked. So... I let him look. And I let him touch me. Later, he wasn't satisfied and pinned me down on the sofa. I didn't resist. After he finished, he drove me back and said he wanted to meet again next week.'

I walked up to her and crouched down to look at her. Jiaqi's eyes reddened, but she tried hard not to let the tears fall.

“I’m sorry.” she said.

I didn't speak, just reached out and pulled her into my embrace. Her body stiffened for a moment, then softened as she buried her face in my shoulder. After a long time, she asked in a muffled voice, 'Do you still want me?'

“Yes.” I said.

From that day on, this relationship became a secret between three people.

The Rat knew very well how to gauge the limits. He wouldn't pester every day, but he would always appear at critical moments. Sometimes on a weekend afternoon, sometimes on a night when I was away on business. Jiaqi would receive his message and then silently go out. When she returned, she often carried his scent on her, or a lingering wetness between her legs. She rarely took the initiative to mention the process, only washing very carefully afterwards and then quietly leaning against me.

Once she came back unusually late. When she entered, her walk was a bit unnatural. I asked her what was wrong; she hesitated for a long time before blushing and saying, 'He... used the back today.'

My mind buzzed.

With her head lowered, Jiaqi spoke so softly it was almost impossible to hear. “He said he was bored of doing it in front, and wanted to change places. I wanted to refuse at first, but he took out that photo taken right after my nipple ring was pierced and threatened to send it to my advisor’s email. I... agreed. At first it hurt a lot, but later I don’t know if my body just adapted on its own, but I actually started to feel something. When he came inside, I even orgasmed once. On the way back, I kept being afraid, and kept thinking.”

That night we didn't have sex. I just held her, my palm gently covering her slightly warm lower back. She buried her face in my chest and fell asleep after a long while.

Over time, a kind of twisted balance gradually formed.

I started checking her body before she went out—whether her nipple rings were clean, if her panties were locked properly, if she was wearing the perfume he liked. Sometimes I would even personally prepare her, like applying lube between her legs, or using a toy to make her climax once first, so she went to see him with the afterglow. Jiaqi was initially very resistant to this feeling of 'being prepared,' but gradually got used to it, even actively spreading her legs during inspections to let me see clearly.

She said the feeling of being used by two people was strange. On one side was me, her official boyfriend; on the other was that man who could blackmail her with photos at any time. Two completely different touches, rhythms, and scents made her feel intense shame when switching between them, and this shame would transform into even stronger excitement.

Once Laoshi was on a business trip for two weeks. During those two weeks, Jiaqi became especially clingy. We did it almost every day, sometimes twice a day. She would proactively ask me to take her from behind, or have me cum on her nipple ring, then lick it clean bit by bit. She said only this way could she temporarily forget the other person's existence.

But as soon as the mouse came back, the text message followed.

“Tonight at nine, same old place. Clean the back thoroughly, and change the nipple ring to the pair of long danglers I gave you last time.”

Jiaqi looked at her phone in silence for a long time. Then she walked into the bathroom and began to wash carefully. I stood at the door watching her bend over, watching water droplets run down her back, watching her insert her own fingers to clean herself out. At that moment I was hard with pain, but I did not go over.

When she came out, she only wore a loose jacket. Nothing underneath; the pendant of her nipple ring swayed gently as she walked, leaving thin red marks on her collarbone. She walked up to me and kissed me on her own.

“Wait for me to come back.” she said.

After the door closed, I sat alone on the sofa, listening to the clock on the wall ticking away. My mind was filled with what she might be experiencing right now—being pressed against the floor-to-ceiling window by him, being entered from behind by him, being forced to look up by him pulling on the pendant of her nipple ring... These images were terrifyingly clear and terrifyingly stimulating.

It was only at two in the morning that she came back.

When entering, her steps were somewhat unsteady. Her coat was open, and she wore nothing underneath. The charms on her nipple rings had been replaced with another pair, longer, with tiny bells hanging at the ends. With each step, they made an extremely faint sound. There were fresh finger marks on the inside of her thighs, and bruises from being grabbed on her lower back.

Seeing I was still awake, she paused, then slowly walked over and straddled my lap.

"He's especially fierce today." Her voice was a little hoarse. "After using me from behind twice, he even made me scoop the semen out myself to show him. The last time he came in my mouth, made me hold it in all the way home, and only let me swallow it at the door."

While saying these things, she looked at me without flinching. I reached out and touched her nipple ring, gently pulling on the pendant. The bell chimed once. Her body trembled, and her breathing immediately became ragged.

“Still need it?” I asked.

She nodded.

That night we did it fiercely and for a long time. I pinned her on the sofa, the floor, the bathroom wall, using every method to leave marks belonging to me on her body. She cooperated with unusual initiative, holding me tightly when she climaxed, as if trying to embed herself into my body. When it ended, both of us were exhausted, lying on the bed panting.

She turned her head, her voice very soft: 'Sometimes I feel like I'm broken.'

“What’s broken?”

“Even though I’m obviously being threatened, I still look forward to his messages. Even though I’m scared, my body reacts first. When I come back to your side, I even get excited because I betrayed you.” She paused. “Tell me, have I already stopped being the person I used to be?”

I didn't answer immediately. I just pulled her into my embrace, my palm resting on her slightly rising and falling abdomen.

“Then show me how bad.” I said.

After that, this relationship became more openly shared among the three of us. The mouse knew that I was aware, and instead became even more unscrupulous. Sometimes he would even hint at things in the company in ways only the three of us could understand—for example, “casually” mentioning a detail from last night in the break room, or turning his phone screen toward me during a meeting, showing a close-up of Jiaqi’s nipple rings.

I learned to endure, and also learned to derive another kind of pleasure from enduring.

Jiaqi, meanwhile, kept swinging back and forth between two extremes. Sometimes, after being used by the mouse, she would deliberately not clean up and go home, letting me personally taste the taste left behind by another man. At other times, she would cry and beg me, saying she wanted to end all of this, wanted to take out the nipple ring, throw away the key, and become only mine again.

But whenever the rat’s message rang out again, she would still go out.

One night, she came home unusually early. After entering, she walked straight up to me and handed over her phone. On the screen was a video sent by Mouse—she was tied to a hotel chair, her nipple rings connected by thin chains, her lower body completely exposed, eyes blindfolded with a cloth strip. In the video, she was being tormented by some kind of vibrating toy, her body writhing constantly but unable to make a sound (a ball gag in her mouth).

"He said he wants to livestream it for me tomorrow." Jiaqi's voice was calm, "He asked me whether I agreed. And whether you agreed too."

I looked at her in the video, watching those familiar physical reactions, and suddenly asked, 'Do you want it yourself?'

She was silent for a long time, then nodded.

"I want to. But more than that, I want you to watch beside me."

Then the next day, I really went.

The hotel room was large. Mouse saw me appear and just smiled, no extra words. Jiaqi was already prepared—eyes blindfolded, hands tied behind her back, tonight's new pendant hanging from her nipple rings. Hearing my footsteps, her body visibly tensed, but she made no sound.

The Rat did it very slowly. He made me sit on the sofa directly opposite, while he stood behind Jiaqi, using his hands, props, and body to push her towards climax bit by bit. Jiaqi went from suppressed panting at first to completely letting her voice go later. She called my name, and also called his name, unable to tell who she was begging for mercy from, or who she was demanding from.

When the rat finally entered her, he deliberately turned sideways so I could clearly see the point of union. Jiaqi's legs were spread wide apart, each thrust accompanied by sticky, wet sounds. Her toes were pointed, her lower abdomen constantly contracting. I was painfully hard, yet I just sat there watching.

At the end, the mouse ejaculated on her lower abdomen, then untied the blindfold. Jiaqi squinted to adjust to the light, and when she saw me, tears suddenly fell.

She didn't speak, just looked at me.

I walked over, crouched down, wiped the white fluid from her lower abdomen with my hand, and then brought my fingers to her lips. She hesitated for a moment but still opened her mouth and licked clean what belonged to another man.

The Rat smoked a cigarette nearby, his tone relaxed: 'You two are really interesting.'

When we came out of the hotel, the night breeze was a little cool. Jiaqi was walking beside me, her steps still a little unsteady. Suddenly, she reached out and held my hand tightly.

"Go home." she said.

I nodded.

In the car, she kept leaning on my shoulder. At a red light, she suddenly spoke: 'Next month, I have my thesis proposal. My advisor is strict, I might be busy for a while.'

“Mm.”

“During that time... could you not let him come looking for me again first?”

I turned to look at her. Her eyes looked ahead, her expression calm but with a hint of pleading.

"Okay," I said.

She relaxed, burying her face back into my shoulder.

But I know this is only a temporary ceasefire. The nipple rings are still there, the photos are still there, and the feelings her body has already remembered are still there too. As long as the mouse is willing, the start button can be pressed again at any time.

And it seems that both Jiaqi and I have no way to truly turn it off.

After returning home, we took a very long shower. The hot water washed away the smells on our bodies but couldn't wash away the memories lingering beneath our skin. When we got into bed, Jiaqi actively straddled me and took me inside herself. Her movements were slow, deep, and her eyes never left mine.

“Cum inside.” She said, “Tonight, only yours.”

I held her waist tightly and thrust upward. She bit her lip, bearing it, occasionally letting out fragmented moans. When it ended, she lay on my chest, listening as our heartbeats gradually calmed.

Outside, dawn was approaching.

This secret relationship, which began on the year-end dinner night, has completely overshadowed our lives like a long shadow. It brings shame, fear, pleasure, and also a kind of unbreakable connection. We both know that a real end is far from sight.

And before that, we can only keep moving forward.

Even if every step is taken on a rope that could collapse at any moment.

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