Seo A-rin - Boyfriend Who Can't Stand Straight (1)

Seo Arin - The Boyfriend Who Can't Get It Up (1)#Girlfriend #MaleJunior #SexEducation #Dildo #Paizuri #Fellatio

Seo Arin opened the cafe door and walked in.

Not far from the entrance, Go Gitaek was already waiting for her.

Arin shuddered. The moment she saw Gitaek's face, memories of what happened at the tent bar last time came rushing back.

The memory of having her nipples tormented and her pussy pounded by Gitaek was still vivid.

The climax she experienced back then, even squirting, was something she had never experienced in her entire life.

Fortunately, the meeting place this time was a cafe.

He surely wouldn't grope her breasts or pussy in such an open space.

Gitaek scanned her outfit up and down and voiced his dissatisfaction.

"Aren't you showing a bit too little effort for someone coming out on a date?"

"What date? Don't get the wrong idea. I have a boyfriend."

"What does that matter? You're going to be hanging out with me for a while. And for that, your outfit needs a little adjustment."

Jeans and a white t-shirt.

It was a combination that Jinsol had praised as pretty.

It was a style that really suited Arin's narrow waist and large hips.

However, to Gitaek, who always dressed women to his own tastes, it looked quite plain.

Gitaek smacked his lips as he looked at Arin's body.

"I'm really jealous of your boyfriend. To be able to have sex every day with a woman with a body like yours, sunbae."

"Bringing that up the moment we meet... you're really low class."

But 'every day'?

If she had sex with Jinsol every day, it would definitely take a toll on her studies.

Jinsol always ended up completely exhausted, collapsing into a deep sleep after having sex with her.

...Of course, since she herself was perfectly fine afterward every time, it didn't matter to her.

"If I had sex with you, sunbae, I'm confident I'd shoot at least six loads. I wonder if you'd believe me."

"Dream on. The way you talk, your attitude towards women, it's all trash. The absolute worst."

...But that many times?

It was hard enough for Jinsol to ejaculate even once, so was six times even a possible number?

Of course, her love for her boyfriend wouldn't diminish just because he could only do it once.

But lately, even that one time was hard to achieve.

No matter how much effort she put in, there were times when Jinsol's member couldn't get hard properly.

"You look like you have something on your mind? Is there a problem with your relationship with your boyfriend? I might not be able to give relationship advice, but I know more about sex than anyone. Maybe the positions you're doing aren't satisfying enough..."

Normally, she would have let this trashy junior's words go in one ear and ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠out the other.

But one sentence that slipped from Gitaek's mouth ended up catching Arin's attention.

"...Or maybe the amount your boyfriend ejaculates has decreased..."

"Wait. Say what you just said again."

"Aha! So that's it! There's only one reason why a man's ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠ejaculation volume decreases. He's wasting his semen somewhere else."

"Does that mean Jinsol is cheating on me?!"

"Well, that's a bit of an extreme example. He's probably just watching porn. Even guys with girlfriends can still masturbate."

"But I can do it for him! If he just asked me, I would have touched it for him!"

"Even a man who has the most beautiful woman in the world as his lover will still be drawn to the cleavage of a woman he passes on the street. Men always need new experiences."

Arin thought about the women around her boyfriend.

Fortunately, Jinsol didn't have any female friends.

But for some reason, his family came to mind.

Jinsol's mother, older sister, and younger sister all had overwhelmingly beautiful looks.

'No way. Jinsol would never do that.'

But somehow, she felt a slight sense of crisis.

Could it be that she was feeling jealous of them?

"Is there perhaps a problem with your boyfriend getting an erection?"

"How did you...? Is that also because Jinsol masturbates?"

"No. That is entirely your fault, sunbae."

For a very brief moment, Arin's expression crumbled.

Seeing that, Gitaek cheered inwardly.

This method was definitely the right one.

Badmouthing a boyfriend just to approach a woman was amateur hour.

Doing that to such a devoted girl would only earn him her hostility.

Instead, he had to shift the blame onto the woman for not treating her boyfriend well enough.

Only then would a crack open up for him to squeeze through.

"I've seen a lot of women like you, sunbae. Women who know they're exceptionally attractive, so they stop putting in any effort."

"Why...? I've always treated Jinsol so well. That can't be true...!"

"I'm not talking about everyday life. I'm talking about during sex. If you just repeat the same foreplay and the same positions over and over, a man will quickly fade. How have you been doing it with your boyfriend all this time?"

"I have no obligation to answer something so private!"

"Aren't you the one who needs help, sunbae? If you don't tell me anything, how am I supposed to counsel you?"

In reality, the way Arin had sex with Jinsol was extremely monotonous.

She would use her hands to stroke her boyfriend's member until it got hard.

Then, she would put a condom on him and insert it in the missionary position.

After thrusting her hips a few times, he would quickly ejaculate.

That was the end of the sex.

Hearing Arin's explanation, Gitaek inwardly cursed her boyfriend.

'He has a girlfriend with such a slutty body, and all he does is get handjobs and missionary? Fucking idiot. Well, it's given me a great opportunity, so whatever.'

"What about other things? Have you ever done paizuri or fellatio for your boyfriend?"

As expected, Seo Arin wore a clueless expression.

It seemed like it was her first time even hearing those words.

"I thought so. There was a reason your boyfriend was failing to get it up."

"...How do you do it. That paizuri thing."

"It can't be helped. For my clueless, innocent sunbae, her junior has no choice but to teach her properly."

******

The room was overflowing with pink and red.

The double bed was heart-shaped,

and one entire wall was a mirror.

It was practically oozing the atmosphere of a room meant for that specific purpose.

Inside the love hotel, Gitaek sat on the bed in a very comfortable position.

Meanwhile, Arin stood right in front of the door, glaring at him.

"It was my mistake to trust you."

"You said you wanted to learn paizuri, sunbae. I just brought you to a place where you can actually practice it. Still, I'll make you one promise. I won't lay a single finger on your body."

"Do you think I'd believe you?"

"What are you going to do if you don't?"

Gitaek shook the smartphone in his hand. The smartphone that had Arin's video saved on it.

From the very beginning, Arin had no choice.

"What are you doing standing by the door? Come over here quickly. Then I'll teach you how to do paizuri."

But the moment she took a few steps, Arin recoiled in horror once again.

Gitaek had pulled out a large, flesh-colored dildo from somewhere in the room.

The dildo looked exactly like a real dick.

From the veins running up the shaft to the wrinkles on the balls, it was detailed to an extreme degree.

And on the lower part of the shaft, a 'BC' logo was stamped in very small letters.

"Since I promised not to lay a hand on you today, I'll conduct the training with this instead."

Gitaek's face was completely covered in a smile, as if he was enjoying this situation immensely.

But the more Gitaek enjoyed himself, the more Arin's expression turned to one on the verge of tears.

"I-Isn't that too big?"

Indeed, the dildo in Gitaek's hand looked to be about a span of a man's hand in length.

"Dildos are all like this. This is totally average. It'd be hard to find one smaller than this, you know?"

Gitaek deliberately emphasized the word 'average'.

As if Arin's boyfriend didn't fall into the 'average' category.

"Then take off your clothes now."

"W-What!"

"What do you think? Your top. Normally I'd have to take your bra off too, but I'll let it slide today."

Arin reluctantly took off her top.

The underwear she wore today was ivory. It was a very plain type that wouldn't satisfy Gitaek's eyes.

Despite that, was it because the underwear was slightly small for her G-cup breasts that it was a feast for the eyes?

Her breast flesh was pressed against the edges of the bra, looking as if it would overflow at any moment.

Arin had her own reasons for obediently undressing in front of Gitaek.

'This guy is a playboy who cycles through women all the time anyway. So he's definitely going to get bored of me quickly too. Since it's come to this, I'm going to thoroughly exploit this relationship.'

It was definitely her fault that Jinsol couldn't get an erection lately.

He had gotten bored of the same repetitious sex acts.

So if she learned the skills to excite a man now, it would be fine.

Her relationship with Gitaek was strictly limited to that.

Gitaek would teach her bedroom skills, and she would entertain his eyes.

"Then, sandwich the dildo between your breasts now. Imagine it's a real dick attached to a man, and slowly lower your breasts from top to bottom."

To make it easier for Arin to get into position, Gitaek held the lower part of the dildo with one hand.

Arin did as she was told, lifting her breasts and resting them on the glans of the dildo.

Zzubuut...!

The head of the dildo spread the underside of Arin's breasts and dug deep inside.

"Press the shaft closer to your cleavage. That way, you can squeeze the dick from all sides."

Arin felt like she understood why an act like this would excite a man.

It was because the shape of the act looked exactly like inserting a dick into a pussy.

Arin's face flushed hot.

Even if it was a dildo, showing a pseudo-sex act in front of another man was embarrassing.

A moment later, with a pop! sound, the head of the dildo popped out from between her breasts.

The dildo was so long that even her G-cup breasts couldn't completely cover it.

"You did well. Next, pause for a moment so the man can fully enjoy the sensation of your breasts. In the meantime, sunbae, you can feel the distinct thick scent or the hot heat radiating from the dick."

But what was between her breasts right now was a cold dildo.

So Arin tried to recall her boyfriend's member.

However, the member in her memories wasn't particularly hot or emitting a thick scent either.

She couldn't quite understand what Gitaek was saying.

"Next is the stage where you properly give him a titjob. You use your breasts instead of your hands to stimulate the dick."

She no longer needed Gitaek's explanations.

Because Arin knew very well how to please a man's genitals.

Arin pressed both sides of her breasts with both hands.

Then, the flesh trapped inside the bra swelled up as if it were really going to overflow.

In that state, she began to shake her breasts up and down.

Seureut... Zzurizurit...!

The sound of flesh rubbing together began to pick up speed.

It was hard to believe this was her first time doing it today; the movement of her shaking her breasts was incredibly steady.

"You need to stimulate the area below the glans enough too."

"I know that too, so shut up."

"..."

The indented area below the glans was her boyfriend's weak spot as well.

Since Arin knew every single place that made her boyfriend feel good, she didn't need anyone to teach her.

Arin was already so focused on practicing paizuri that she seemed to have forgotten Gitaek's very existence.

His presence was nothing more than a stand holding the dildo.

'What an unbelievable talent. Maybe I didn't even need to teach her.'

For the first time in a really long while, Gitaek felt the urge to masturbate.

Since there was a line of women wanting to drain his balls, it had been a very long time since he last masturbated.

But watching Arin shaking her breasts against the dildo right now, it was impossible to hold back.

Gitaek unbuckled his belt and pulled out his cock.

A dick longer and thicker than the dildo revealed itself.

Arin was still too engrossed in giving the paizuri to notice.

Gitaek began stroking his dick very slowly and leisurely.

He thought that perhaps masturbating like this was more stimulating than having sex with just any woman.

The thrill of taming such an S-rank woman to his tastes was not something that could be compared to ordinary sex.

A near-perfect body, combined with a talent for pleasing men without even being taught.

And yet her mind was so ignorant about sex that she was practically a blank white canvas.

A sense of conquest rose within him, like leaving the very first footprints in a pristine snowfield.

He would never give up on a woman like this.

Arin belatedly discovered Gitaek masturbating.

Her eyes widened in shock.

"What? It's fine as long as I don't touch sunbae's body, right? I don't need permission to jack off my own dick, do I?"

"Well, that's true, but..."

Gitaek greatly enjoyed the look Arin was giving him.

It wasn't just her; countless women had given him similar looks after seeing his dick.

Especially since she had only ever seen her boyfriend's dick, who was undoubtedly small, she must have been even more shocked.

Indeed, Arin was thinking something similar.

'How is a size like that even possible? It looks like three times the size of Jinsol's. It's even bigger than the dildo between my breasts! Can something like that really fit inside a woman's body? Wouldn't it tear her apart?'

Arin didn't know that the more she stole glances at it, the more turned on Gitaek got.

Now it was difficult to focus on practicing paizuri.

It was absolutely impossible with a piece of meat that size dangling right in front of her eyes.

"...I don't think there's anything else to learn, so let's end it here."

"What do you mean there's nothing else to learn? We still have fellatio left."

It seemed Gitaek had no intention of letting her go.

"Since your comprehension seems so high, I'll explain it simply. Fellatio is a way to please a dick with your mouth. You put the dick inside your mouth and suck on it until your cheeks hollow out."

That size going inside a woman's mouth?

Wouldn't she choke to death if it did?

'No, why am I worrying about that bastard's thing...! I only have Jinsol, so what does it matter!'

But the more she tried to erase it from her mind, the more the size of Gitaek's dick kept popping up.

And she ended up imagining it.

Gitaek's massive member thrusting into her throat.

"Then let's practice fellatio."

"How do I do it?"

"There's no need to take the dildo out from your breasts. Just lower your head in that position. And press your lips against the glans."

What Gitaek said sounded like he wanted her to kiss the glans.

Even if it was a dildo, she felt a sense of revulsion.

Kissing was her favorite kind of skinship.

It felt like her lips would be defiled.

So instead of pressing her lips against the glans, Arin shoved it right into her mouth.

"I mean, there's no problem with sucking it right away. But there's something you need to be careful about. When giving fellatio, your teeth must absolutely never touch the dick."

Arin began to suck the dildo very carefully.

She even used her tongue, despite never being taught, to stimulate the glans.

In order to ignore Gitaek's dick dangling in front of her eyes, she had no choice but to bury her head between her breasts and focus on the fellatio.

But there was one fact she didn't know.

'You might be practicing so hard right now, but you'll never be able to do this for your boyfriend in your entire life. With your boyfriend's size, it'll be completely buried in your breasts, so it'd be impossible to suck ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠on it anyway.'

Unaware of that, Arin vigorously sucked on the dildo.

As she kept doing it, she got the hang of it and even stuck her tongue out between her lips.

Using her tongue to make it easier for the dildo to go in and out looked like she was laying out a red carpet.

Jjyubopjjyubop... Chubobobot...!!

Extremely lewd sounds came from the mouth sucking the dildo.

Drool flowed down along the tongue sticking out of her mouth.

The drool that fell into her cleavage served as an excellent lubricant for the paizuri on the dildo.

Ppurungppurung...! Chupyut chupyut...!

Arin made lewd sounds from both her breasts and her mouth as she earnestly practiced paizuri and fellatio.

Under the pretext of doing it for her boyfriend, she attacked the dildo very aggressively.

Even though her very boyfriend wouldn't be able to receive that service.

Gitaek inwardly expressed his gratitude to her boyfriend.

'I should actually be thankful that she has a boyfriend. Thanks to her boyfriend having a small dick, Arin sunbae's body is practically still a virgin. I checked it myself by putting my hand in last time, and her pussy was just as good as new.'

He thought back to the women who had passed through his hands.

Models. Celebrities. Women with boyfriends, and even married women with husbands.

There was a question he often asked women whose training he had completely finished.

'Whose masterpiece are you now?'

If he pounded their pussies a few times with his massive dick, the answer would pop out so easily.

The answer that came out of their mouths was neither their parents nor their boyfriends.

'Obviously your masterpiece, Gitaek♡'

Gitaek looked forward to a future where the same words would come out of Seo Arin's mouth.

Just imagining it, he could feel his semen boiling up in his balls.

Just then, the sight of Arin sucking the dildo caught his eyes.

It seemed she had already found the most optimal way to pleasure the dildo.

Chupyok chupyok... Chyureureureup...!!

Her tongue was stuck out long between her lips, and her philtrum was stretched several times its normal length.

Her cheeks were hollowed out deeply, leaving not a single bit of space inside her mouth.

"Fuck, this is insane. She sucks better than any woman I've ever met?"

Gitaek felt the urge to ejaculate rising.

But he didn't deliberately hold it back.

He just let the semen erupt out of his urethra.

Bureureureureut...! Bueueueueut!! Bubububeutbeut...!!

Sticky, clumped white semen poured down all over Arin's pretty face.

He intentionally shook his dick around to evenly spray it over her long, slender eyelashes, her long black hair, and her G-cup breasts.

Arin, who had been concentrating on the dildo, didn't even realize what was happening to her and ended up taking the full brunt of the semen shower.

It was the first bukkake Arin had ever experienced in her life.

A bewildered expression surfaced on her face.

The ejaculation lasted for dozens of seconds.

Jelly-like, bouncy, and sticky clumps of semen.

They were all completely foreign to her. That was why she was a little late in grasping the situation.

"Thanks to you, I had a great experience, sunbae. Now you can just do exactly what you learned today for your boyfriend."

Paizuri. Fellatio. And even bukkake. ‍‍‌‌⁠​​⁠‌​​‍​​‍​‌​⁠‍‌‍⁠⁠‌⁠‌‍‌‍‌‌‌‍⁠​‌​‌​‌‍‌‌‌⁠‍​​‌‍⁠‌‌⁠⁠Although you won't be able to properly do a single one of them with your boyfriend.