I Fucked My Mother-in-Law to Marry My Girlfriend

Arm in arm with my mother-in-law, we walked through the department store, clinging to each other like a newlywed couple. Though her face was partially hidden, her beauty was undeniable, outshining everyone around her. Her figure, which could easily rival women ten years her junior, made her the center of attention. As a result, I was perceived as a nouveau riche with a wealthy lifestyle. However, the pride of having such a stunning woman by my side made it easy to brush off those judgmental glances.

I did my best to ignore the way her chest brushed against my arm as we strolled through the store, browsing the displays.

"That jewelry is lovely, honey♥," she remarked.

"Yeah, should we take a closer look?" I replied.

We had agreed to act like a married couple while in the department store, so I spoke casually, as one would with a spouse. My mother-in-law, however, continued to use formal language, subtly signaling to those around us that I was the one in charge.

"Welcome! Are you looking for anything specific?" the store employee asked.

"Hmm… could we see some necklaces?" I requested.

"Of course, right this way," the employee replied.

For a moment, the employee seemed taken aback by my mother-in-law's bold attire and striking figure, but their professionalism quickly took over, and they offered a polite smile.

"With a figure as stunning as yours, anything would look amazing. However, I think these larger stones would complement you even better," the employee suggested.

"What do you think, honey?" my mother-in-law asked, turning to me.

"I'm not really an expert… you choose," I replied.

"In that case, could you show me this one?" she said, pointing to a necklace.

"Certainly, just a moment," the employee responded.

Having no prior experience with jewelry, I honestly couldn't tell what suited her best. So, I let her take the lead, and she tried on a necklace she liked.

"How does it look?" she asked.

"It suits you perfectly… absolutely stunning," I replied.

The necklace featured a large emerald at its center. On anyone else, it might have seemed excessive, but my mother-in-law's presence made it look just right. Her ample chest seemed to enhance the jewel's brilliance rather than overpower it.

'This is only drawing more attention to her chest,' I thought.

Even when standing still, her chest naturally drew eyes, but with the necklace added, it was impossible to look away. I found myself glancing at her chest under the guise of admiring the jewel.

"Hehehe♥ It seems you like it… I'll take this one," she said with a smile.

"That will be XXXX won," the employee stated.

'Insane…' I nearly cursed under my breath. The price was comparable to the luxury car we had arrived in. But my mother-in-law calmly paid for it, wearing the necklace with pride.

"This will only make people stare at my chest even more♥," she teased.

'So, she knew…' I realized. She was fully aware the necklace would draw more attention to her chest, yet she bought it anyway. The men around us couldn't help but steal glances, their eyes filled with envy and desire.

'This is a strange feeling…' I thought. While it was unpleasant to see other men ogling her, there was also a sense of pride knowing she was by my side.

"Hehe♥" she giggled as I wrapped my arm around her waist, asserting to the onlookers that she was mine.

"Tsk…"

"Tch…"

"That lucky…"

The muttered curses and jealous whispers from the men around us only fueled my satisfaction.

"Let's go," I said.

"Yes… honey♥" she replied, playing her role perfectly.

I, too, was fully immersed in our little game, treating her as though she were truly my wife as we made our way to our next destination.

...…..

'I think we've bought most of what we needed.'

The original purpose of our trip was to purchase furniture for my room. After selecting what we needed and arranging for delivery, it was already past lunchtime.

"Since we're here, why don't we have lunch at the restaurant before heading back?" I suggested.

"That sounds lovely," she agreed.

Still playing the part of a married couple, we continued to draw attention as we walked through the store. The stares were relentless, but I was starting to grow accustomed to them.

"The pasta here is delicious," she remarked as we entered a quiet restaurant in the department store. It was past the lunch rush, so we were the only customers.

We chose a secluded table in the corner, away from prying eyes.

"What would you like to eat?" I asked.

Squeeze, squeeze, squeeze

As soon as we were alone, my mother-in-law became more affectionate. She deliberately sat close to me, her chest pressing against my arm as she perused the menu.

'Her chest is practically crushed against me… her thighs are pressed right up against mine… this is getting hard to ignore.'

I had managed to endure her subtle touches earlier, but now, with her so close, my instincts as a man were starting to take over.

'No, I have to hold back! Not here, not in a public place…'

The car had been a safe space, but this was a restaurant—a public area. If I lost control here, it would be a disaster. I tried to distract myself by silently reciting the national anthem in my head.

"I'll have this… this, and this," she said, pointing to the menu.

"Coming right up," the server replied.

The young part-time worker couldn't help but stare at my mother-in-law as she took our order. However, her expression seemed more innocent than lewd, so I didn't think much of it.

"How's our date going so far?" she asked.

"It's been great," I replied.

"No, it's not! Even if it's just the two of us, I'm your wife right now," she teased.

"O-okay, Jeongyeon," I said, playing along.

"Hehehe♥ Yes, honey♥" she responded, clearly enjoying the role.

Since we were alone, I thought we might drop the act, but it seemed my mother-in-law wanted to continue playing the part of my wife.

'Well, she's been alone for a long time… I'll indulge her, at least for now.'

Our relationship was complicated—part son-in-law, part master, part husband. But for the moment, I decided to simply be her husband.

"But… you seem a little uncomfortable here♥" she said mischievously.

Swoosh

"Huh? W-wait a minute!?" I stammered as she placed her hand on my crotch.

Swoosh, swoosh, swoosh

"Ugh!"

The erection I had been struggling to suppress immediately sprang to life, creating a noticeable tent in my pants.

"You've been holding back all day, haven't you? I know you've been staring at my chest♥" she teased.

"E-even so, not here… ugh!" I protested, though her touch made it hard to resist.

She slowly unzipped my pants and skillfully freed my penis.

'I should stop her… but it feels too good.'

My rational mind was overwhelmed by the pleasure of her touch. I didn't have the will to resist and simply let her continue.

Tap, tap, tap, tap

"Such a magnificent penis♥… You already came in the car, but that wasn't enough, was it?" she whispered.

"Haa… Jeongyeon," I groaned.

"Yes, honey♥" she replied, her expression growing even more lewd.

My mother-in-law, who oscillated between the roles of a devoted wife and a submissive slave, was now giving me a handjob with increasing intensity.

'I know this is wrong, but…'

Swoosh

"Aah♥" I moaned, unable to hold back.

It was as if I had been infected by her depravity, and I began doing things I never thought I would.

"Ugh♥ Aah♥ Do you like my butt?" she asked.

"Yeah, I love it… enough to want to grab it like this," I said, squeezing her firmly.

"Hieeheeut♥" she moaned, trembling with pleasure.

She knew we shouldn't be doing this in public, but the thrill of it seemed to excite her even more.

"M-more, please rub it harder♥ Squeeze it hard enough to leave your handprint♥" she begged.

"Okay," I replied, obliging her request.

"Heeut♥" she gasped, her moans growing louder.

Her lewd behavior was unlike anything I had ever seen. It was a good thing we were the only ones in the restaurant, or else we would have been caught immediately.

"Give me more orders♥… I'll follow all of your wishes, Master♥ I love being seen by others and obeying your commands♥" she said, her voice dripping with desire.

Her transformation from a dignified wife to a masochistic slave was complete. She moved her hand faster, eager to please.

'Just a little longer… let's enjoy this a little more.'

In the end, I gave in to my instincts. My rational mind was defeated, and I grabbed her head, guiding it toward my penis.

"Yes, Master♥ Haaap♥" she said, understanding my unspoken command.

Without hesitation, she opened her mouth and began to suck.

Even though she had done this several times already today, her skill never ceased to amaze me. Her ample breasts pressed against my thighs, her round butt swayed enticingly, and the vulgar sounds she made as she pleasured me only heightened my arousal.

"You're doing great, Jeongyeon," I praised.

"Woop♥ Chooop♥ Woop♥" she responded, sucking even more eagerly.

When I first discovered this side of her, I had been mostly embarrassed. But now, I understood that this was her true nature, and it no longer felt awkward.

'That's why she chose this corner seat.'

The secluded spot ensured that no one could see us unless they came close, and the sofa-style seating hid her actions from view.

'She must have done this with her ex-husband too.'

"Woop♥ Chooop♥ Chooop♥" she continued, her mouth working diligently.

The thought that her behavior might have been shaped by her late husband sparked a strange sense of jealousy within me.

'Right now… she's my wife, isn't she?'

Squeeze

"Heeeuup!?♥" she gasped as I pressed her head down harder.

That jealousy turned into a sadistic urge, and I violated her with increasing intensity, determined to make her forget any other man.