Chapter 1 — My Girlfriend's Other Man - Part 1 (1)

This is a work of fiction. Names, characters, places and incidents are the product of the author's imagination. All characters are adults aged 18 or over.

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Maybe she wanted revenge. Or perhaps it was simply the fatigue that comes after years of a stagnant relationship.

We met in our mid-twenties and dated relentlessly until we reached our early thirties.

Marriage? Well… we'd come close a few times, but at the decisive moment, both of us always stepped back.

From my perspective… I guess I still felt it wasn't the right time. Honestly, I didn't feel ready to take on that responsibility. Of course, I love her. I truly can't imagine living without her.

But… hmm… to be honest, I don't even fully understand my own feelings.

Emma Lee.

I first met her at twenty-six and followed her around nearly every day for almost a year—borderline stalker behavior.

To me, she looked like an angel.

She worked in the secretary's office of a well-known mid-sized company and had even done fitting modeling—her figure and face were that striking.

At the time, she had just broken up with her boyfriend and was going through a rough patch. I came up to Seoul almost daily, desperate to win her over.

She lived in Seoul; I was based in the countryside, about an hour away.

After she finally opened up to me, we didn't care about location—we'd confirm our love anywhere, anytime.

Let me tell you about something that happened recently. I'll save the details about her past and her exes for later.

When we first started sleeping together, she was extremely passive. Oral sex was out of the question, and even common positions like doggy style were completely off the table.

But then, at some point, things changed. We used to go hiking and beach trips often, and suddenly she'd initiate sex anywhere, anytime. She'd look at me and say, "How come you're so good at this?"

Honestly… due to my job, I'd been with a lot of women. Not because I was in sales—I'm an engineer in construction, but there was a lot of client entertaining involved.

Some kind of mutual complicity, I guess? You know… going along with something a little shady just to build rapport? Anyway, I'd been with plenty of professional women over the years.

So when she started asking me why I was so skilled, and kept throwing herself at me out of nowhere, I didn't think much of it. But lately, she's changed. She says she doesn't feel anything when we have sex, and when I initiate, she brushes me off, saying she's tired.

It hurt my pride. I also wanted to see her truly satisfied. So I decided to bring in a third party. Of course, I couldn't tell her about it first.

I found a man through a chat app, met him alone beforehand to size him up, and a week later arranged for him to meet her.

I mostly live on-site at remote job locations, so on weekends I either go up to Seoul or have Emma come to me.

Not long ago, on that particular day…

I came up to Seoul. We had dinner at VIPS steakhouse in Yangjae-dong, then grabbed a few beers at a pub in Sinlim-dong.

Just as planned, the man I'd invited called while we were drinking. I introduced him as my junior, and we naturally merged into the same table.

The man… honestly, he made me jealous. I'm 181cm, so I don't usually feel intimidated, but his looks and well-toned muscles were clearly better than mine.

We hadn't met before our initial planning session, but now I saw he was witty and charming. Emma giggled at his jokes, clearly enjoying herself, and drank a bit more than usual.

After a few rounds, we said our goodbyes.

Emma and I bought some fruit and beer and headed to our usual motel—a place we often visited for fun. As soon as we got in, she said she was tired, took a quick shower, and lay down on the bed.

I was about to go in to shower when she spoke.

"Baby… I think I ate too much. I'm exhausted. Let's just sleep tonight… okay?"

I nodded silently. She pulled the blanket over herself and asked again, seeking reassurance.

"Tonight, really, don't touch me… okay?"

"Alright…"

I answered reluctantly and went to take my shower.

When I came out, she was already deep asleep, softly snoring.

I texted the man our location and unlocked the door. A few minutes later, there was a soft knock.

I quickly opened the door, worried she might wake up.

But to my relief, she was still sound asleep. I gave the man a subtle nod—go ahead.

He quietly stripped off his clothes and climbed onto the bed where Emma lay. Gently, he pulled back the blanket.

He stood there for a moment, gazing at her—her bare chest under a plain T-shirt, her sky-blue panties barely covering her.

"Wow… I'm jealous, hyung."

He murmured to me, still staring. I froze, my mind blank. What was I supposed to say?

"Go ahead…"

I replied flatly, like giving a work order.

His hands lifted her T-shirt, revealing her soft, rounded breasts.

Her areolas were a slightly dark brown, wider than average. Some people prefer pink nipples, but I've always liked the look of my girlfriend's.

He opened his mouth wide, taking in not just her nipple but the entire areola, and began to suck.

Huuup… suck… huuup…

"Mmm… stop it, baby… we said we wouldn't…."

Half-asleep, she weakly pushed his head away. He ignored her, moving from her nipple to her areola, then licking around the full curve of her breast.

Her nipple hardened, and the hand pushing him away gradually lost its strength.

I watched, growing more aroused. I gripped my cock through my underwear, just staring.

His lips trailed down her stomach, past her navel, lower… lower…

When he reached her panties, he gently grabbed the fabric and started pulling them down.

"Don't… baby…"

But her body betrayed her words—she slightly lifted her hips to help.

He seized the moment and pulled them off completely. Then he buried his face between her thighs.

He sucked her outer lips, pulling them into his mouth, then took each inner lip one by one, sucking and swirling his tongue.

After sucking her lips for a while, he used his fingers to part them and began licking her clit.

"Haaaah… baby…"

Her hands grabbed his hair, pulling his face tighter against her pussy.

His tongue flicked across her slit a few times, then tapped her clit. Her hips jerked, and she groaned, her eyes fluttering as if trying to open.

I'd expected this, but the thought of her reaction when she realized what was happening made me panic.

I quickly leaned in and kissed her lips. She didn't seem to know what was happening—she sucked on my lips and pushed her tongue into my mouth.

The hot kiss lasted only a moment.

Then, as if realizing—these lips are kissing me… so whose lips are down there?—her eyes snapped wide open.

She tried to push me away, but I caught her wrist and silenced her with my mouth.

"Mmm!! Mmm!!"

She tried to speak, but my lips blocked her. Her hands were trapped, and no matter how hard she tried to close her legs, the man refused to pull away from her pussy.

Eventually, as if giving up, she looked at me and gave a tiny nod.

I slowly released her wrist, kissed her gently once more, then pulled back.

She closed her eyes again, offering no resistance to the man's touch. The more passive she became, the more insistently his lips worked her core.

Let's see who wins, he seemed to be thinking. Relentlessly, yet gently, he continued.

He licked down her thighs, all the way to her calves and feet, then back up again—again and again. When his mouth finally returned to her pussy, it was soaked, and the sucking sounds were even more intense.

Huuup… zzuuuup…

I could see her juices glistening on his face.

"Baby, you're really wet tonight."

I commented, watching. She kept her eyes closed, biting her lower lip, slowly spreading her legs wider, her hands drifting toward her pussy.

Her fingers pulled her labia apart, exposing her clit.

As if in response, the man sucked her clit into his mouth and began sucking hard.

Click… click…

I'd sucked her pussy countless times before, but I'd never seen her react like this.

A quiet jealousy stirred inside me.

Suddenly, the man shifted position.

Still buried between her legs, he turned his body, flipping them into a 69.

At first, she just gently stroked his cock with her hand.

"Puhuhuhuk…"

I heard a soft puff of air—had he blown into her pussy?

"Puhuhuhuk… puhuk… puhuhuhuk…"

Obscene wet sounds came from her pussy, and from her mouth came muffled, whimpering noises.

"Hhhnn… huuunn…"

She opened her eyes and looked down at the cock in her hand, studying it.

Then, just as her lips parted slightly, it felt like a punch to the head.

Her lips wrapped around the man's glans.

I'd only done that once myself—long ago, and not in a situation like this—by accident.

Her lips moved, chewing slightly, then began sucking his cock.

"Haaaaa!"

The man groaned, then started thrusting his hips, pushing deeper into her mouth while sucking her pussy even more aggressively.

He went deep—really deep—but she took it all. I was jealous, but watching her like this drove me insane with arousal.

I moved closer to the side, and she reached up with one hand, stroking my hard cock.

The man glanced at me, then shifted again.

He sat between her legs, ready to enter. I climbed onto her chest, positioning my cock toward her face.

She wrapped both hands around my shaft, licked the tip of my glans a few times with her tongue, then took it into her warm, wet mouth.

Ahh…!! This sensation… how long had it been since I'd felt this?

I tried to start thrusting, but she pushed my hips back with her hands.

Maybe this is enough, I thought—when suddenly her body began to tremble.

I turned and saw the man had entered her, sliding his cock in and out of her pussy.

"Stop it, baby…"

She pushed me away—like I was interrupting. Helpless, I moved aside.

As I stepped back, the man's chest pressed against hers.

He continued thrusting steadily, one hand caressing her breast, the other sucking her nipple into his mouth.

"Haa… haa… haa…"

She moaned softly, gripping his hair tightly, then closed her eyes again.

Puk-puk-puk-puk…

Suddenly, his hips began slamming into her hard.

"Aaah! Aaah! Haa! Aaah!…"

Each time he thrust deep, her cries grew louder.

He was skilled, just as promised. After pounding her for a while, he began varying his rhythm.

He lifted his upper body slightly, watching her face as he pistoned in and out.

Soft, shallow strokes… then deep, rough ones…

I moved behind them, watching where their bodies joined.

Her juices mixed with his thrusting, turning into white foam around his cock—like soap lather smeared all over.

Every time he slammed into her, she cried out, and I could see her anus tighten. Her pussy seemed to twitch in response too.

She glanced down at me occasionally.

Her eyes were wild, almost taunting, as if saying:

Stupid man… could you ever do this for me?

Her juices had soaked the sheets. The man seemed to pause, adjusting his rhythm—he thrust deep and held still, his cock buried inside her.

She grabbed his ass, pulling him deeper, wrapping both legs tightly around his.

This was her tell—this was how she acted when she was truly satisfied.

Sometimes she'd squeeze so hard my legs would hurt. That was back then, of course…

"Haa… haa…"

She panted, grinding her hips, pubic hair rubbing against his.

The man lifted his upper body again, and the rhythmic thrusting resumed.

"Aaah! Aaah! Aaang…!"

Her cries erupted once more. She wrapped her arms around his neck, lifting her upper body slightly to watch.

Watching his thick cock plunge wildly in and out of her pussy.

"Huuu… huuu…!"

The man was nearing his limit—his groans grew louder, his thrusts faster.

She seemed to sense it and pleaded urgently.

"Not inside! Don't come inside!"

He thrust a few more times violently, then pulled out, aiming his cock at her chest.

"Aaah!"

A thin stream of liquid shot into the air. His cock pulsed, spurting three or four thick jets of cum.

An enormous amount—her chest, her face, even her forehead were drenched.

I'd been jerking off while watching, and I couldn't hold back anymore. I rushed to her, shoving my glans into her mouth.

She probably didn't expect me to come. I remembered the look in her eyes earlier.

Stupid man… could you ever do this for me?

I grabbed her head and forced my cock deep into her mouth.

A few quick thrusts—and I came, emptying my load inside.

The moment my cum hit her mouth, she tried to push me away with all her strength. But I remembered that look—and I pushed deeper.

If I didn't do this, even the first taste of my cum in her mouth would belong to that man.

Satisfaction. Jealousy. Everything.

I didn't pull out until she bit down hard on my cock.

The pain shot through me. I finally pulled out, and she scolded me.

"What the hell?! What if I'd swallowed it?!"

She yanked out several tissues and spat out the cum.

Judging by how little was on the tissue, she'd probably already swallowed most of it.

After the madness passed… an unbearable silence.

The man quickly cleaned up and left. I lay down beside her.

I'd wiped her off, but I could still smell his cum on her skin.

"How was it?"

Asking felt awkward, but I was desperate to know. So I asked.

"I don't know…"

She answered sullenly.

"Tell me… how was it?"

"Hmm… honestly, it was okay. His thing felt bigger than yours, I think…"

From what I saw, he looked smaller than me… I asked again.

"Baby, you seemed really into it. Did you actually feel it?"

"Mmm… a little."

"Come on… a little? You were dripping earlier…"

"I don't know…"

Embarrassed, she pulled the blanket over her face.

Just recalling the scene made me hard again.

I pulled the blanket off and climbed on top of her—her body still carrying the man's scent.

Her pussy, still soaked, welcomed my cock softly.

We went at it once more.

Then, after dozing off for about an hour, again…

We woke and slept, woke and fucked—four times before noon the next day.

The fifth time I came—it was barely cum, more like water.

Normally, getting her aroused took effort, but that day, she got turned on easily, dripping wet from the start.

Anyway, that was how the first encounter with the invited man ended.

Next… I'll tell you about the incident that directly led me to plan all of this.