Chapter 1

“Fuck,” Ryujin moaned, her hips thrusting into her bed. It felt like her body was on fire, and the pleasure she felt was unlike any other. Ryujin couldn’t believe what was happening. There was no way it should be, but as she looked again, she saw it. Ryujin had a cock. It was big, larger than any toy she had, and Ryujin had some large ones. The thing that was really bothering her was the sensitivity. As Ryujin rubbed against the bedding, she felt waves of pleasure crashing over her. Stronger than some orgasms she had had. It led the young woman to stain her bed, cumming a significant amount. Ryujin knew she couldn’t just do nothing. She considered what her life would be like if she were stuck with her cock. It would be impossible to hide in her stage outfits, and in general.

She also couldn’t call her members, so Ryujin was left to think of who she could ask for help. Thinking was hard in her state; the only thing that kept coming to mind was pleasuring herself. Her mind only thought of that, and as her mind drifted to her members again, Ryujin saw them in a new light. She saw their curves, and she remembered their bare bodies from the times she had bathed with them. Lust began to overwhelm her; she imagined fucking them. Yuna begging for her cock, Chaeryeong’s whines, and Lia being drowned in her cum. Ryujin’s mouth began to drool as she imagined them all for her.

The young idol realized she needed to get a grip and called her seniors, deciding to reach out to Twice’s Jihyo for help. Unfortunately, Ryujin hadn’t thought about how she would explain her problem. “Hello?”

“Ah, Jihyo, how are you?”

“I’m good, Ryujin. Did you need something?” Ryujin stayed silent for a moment, considering how she would go about bringing up the subject. She was nervous about how she could come off. Jihyo might think she was crazy and hang up.

Ryujin took a deep breath. “Jihyo-unnie, have you ever had a problem with your body? I, um, I’m going through some growth. Somewhere I shouldn’t be.” On the other end of the call, Jihyo raised an eyebrow, wondering what the younger idol was talking about. “I just mean, I…” Ryujin had no way of explaining to the older woman what she was going through. “I grew a cock,” she whispers softly, giving up on talking around the subject but still too ashamed as to what the older idol might think.

“Ah, is that it? I wish I could help you in person, but I’m still out of the country. You’ll have to go to Hwasa from Mamamoo. She’ll be able to help you. I’ll send her a quick message and then give you her info.” With that, Jihyo hung up. Ryujin was left with more questions than answers and more people knowing about her problem than she liked. Still, when she received a message from Jihyo with directions to Hwasa’s home, she had little choice about what to do. She got out of bed and dressed herself in the baggiest clothes she could find, hiding her cock by using the waistband of her sweatpants to hold it against her body. She just had to deal with the incredible heat coming from it. All dressed, she made her way out, using the subway and covering herself with her bag. Ryujin did all she could to cover her lower half so no one would notice the bulging shaft. Somehow, she had made it without being discovered.

Ryujin was amazed she had made it all the way to Hwasa’s home without being caught. At the idol’s door, she pressed the call button, hoping she would be let in quickly. She didn’t want to be spotted with her dick. Ryujin was amazed that it was a sentence she had to think of, but it was true. She moved her bag slightly, and there it was, her rock-hard cock. What made it worse was that it was bigger than any she had seen and incredibly sensitive.

A beep from the intercom breaks Ryujin’s train of thought, “Yes?” Hwasa answered.

Ryujin looked into the camera and replied, fidgeting with her clothes. “It’s Ryujin,” she said softly, still embarrassed at her current situation.

“Come in.” After the sound of a click, Ryujin tried the door. When it opened, she was greeted by moans. As she peeked through, she saw Hwassa pinning you to the wall. The idol was driving her cock into your cunt from behind. Ryujin’s cock twitched at the sight. “Close the door,” Hwasa grunted, continuing to drive her cock into you. Ryujin rushed inside and shut the door behind her before returning her gaze to the sight of Hwasa fucking you. Ryujin watched as Hwasa buried her cock inside and came. She could tell from the way your body twitched that you were enjoying the way she came in you. Once Hwasa pulls out and lets go of your body, you collapse to your knees. Hwasa turns to Ryujin, who sees the older woman’s cock for the first time. It was huge. Ryujin’s eyes shift to you, wondering how you could take such a long and thick thing. “Follow me,” Hwasa says to the younger idol before walking to the living room, grabbing you by the hair, and making you crawl along as cum runs down your legs. Ryujin stays at the entrance, letting the two of you pass by, staring at your gaping cunt. Her cock twitches and leaks, creating a wet spot in her sweatpants.

Ryujin’s body heats up as she follows behind the two of you. Hwasa settles onto the couch and brings you between her legs. In your state, you don’t need to be told what to do. You wrap your lips around the thick head. It stretches your lip, and your jaw is forced apart as you bob your head to take in Hwasa’s shaft. You can taste yourself on her cock. Your body craves the mixture, your tongue sweeps across the underside before you settle into your routine.

“So you need some help?” Hwasa asks, bringing Ryujin’s attention back to her.

“Y-yes. I, um, woke up with a cock.” Ryujin says shyly. She didn’t know what else to say. “I was told you could help me. I see you have the same problem.”

“Yeah, but also no,” Hwasa replies, her hand resting on your head as she guides you along your shaft. “Where should I start?” Hwasa asks, it was a rhetorical question she pondered for a few seconds. “Okay, listen up. First things first, this is temporary.” Ryujin breathed a sigh of relief; she thought she would have to worry about this for the rest of her life. “But now you’re like a werewolf. You’ll have a cock for about one day every month.”

“What?”

“Yeah, congratulations, you have one more problem to think about,” Hwasa says with a laugh. “Do you have any questions?”

“What am I supposed to do? How does this happen?” Ryujin was about to go on a tirade of questions, but Hwasa stopped her before she could.

“I’m not sure how this happens. It’s just certain people that it happens to.” Hwasa says, through grunts. She pushes your head further along her shaft. You near her base, her cock was ramming into the back of your throat. Your tongue was tracing her veins as they throbbed. “Hold on,” Before Hwasa could continue answering Ryujin’s questions, she was going to cum down your throat. She wiggled your ass in excitement as Hwasa stood up and began thrusting into your throat. You placed your hands on Hwasa’s thighs, holding onto them tightly as she fucked your face, saliva and tears running down your face as she held you in place. Her cum shoots down your throat, and you drink every drop as it comes. You feel your belly filling with the massive load, but still you crave more. When Hwasa’s done, she pulls out and pushes you to the side. You lie on your side, your fingers finding their place between your folds. “As for what you’re supposed to do,” Hwasa tilts her head, motioning toward your body. The older idol sits back on the couch and strokes her cock in front of Ryujin, making the young idol nervous. “Fuck her. It’ll help you. If there’s anything I learned in my time with this problem, it’s that you have to fuck and you have to cum.”

Ryujin was confused, wondering how that would help anything. “You have to do the two of these things because if you don’t, when you go back to ‘normal,’ you’ll be insatiably horny for a few weeks. I mean, insatiable, I’m talking days-long gangbangs won’t be enough to make you feel better.” Ryujin could hardly believe what Hwasa was saying, but considering she wouldn’t have believed you if you told her she would grow a cock she had to believe Hwasa. “Oh, one more thing. You can get any woman you want with this thing. We have some special pheromone or something. Once your cock starts leaking out precum, you won’t be able to get women off you. So you should also watch out for your members. If they catch a whiff, they’ll be begging for your cock like this one is. Well, not right now, because she’s,” Hwasa doesn’t explicitly say what you are, but you already knew what she meant, and so did Ryujin.

“Get those clothes off, and start fucking.” Hwasa told Ryujin, “We can double-team her later. I’ll let you experience your first pussy solo.” Ryujin tried to organize her thoughts, but it was difficult amid the flood of information she received. Especially when she considered how casually Hwasa was treating all this. Still, she would be lying if she said she didn’t find your leaking cunt arousing. Ryujin reached for the waistband of her pants, pulling them over her hardened cock after a small struggle. Once the waistband was under her cock it was easy. She stripped out of her clothes and stared at your dripping entrance. “Go on,” Hwasa said, smacking your ass. You yelp at the strike and look over your shoulder, seeing Ryujin’s leaking cock gets you raring to go.

You present yourself to the younger idol. You spread your cheeks, allowing Ryujin to have whichever hole she pleases. Ryujin gets behind you, rubbing her cock against your slick folds. You groan, your nails digging into your ass as she teases you. “Please give that big fat cock,” you moan, wanting nothing more than for Ryujin to fill you. Ryujin’s moans mix with yours as the pleasure coming from rubbing her cock against your warm lips didn’t even compare to what she was doing earlier.

The pleasure that she felt drove Ryujin crazy. In the next instance, she had impaled you on her cock. Your legs tighten as you’re made to accommodate the thick shaft buried in you suddenly. You cum with just that, your walls clamping down on Ryujin’s cock. The young idol is stuck, buried inside you, experiencing her first cunt. Just like you, she cums instantly. You feel her thick seed pour into your body, mixing with Hwasa’s. You begin to drool onto the floor as pleasure overwhelms your senses. Despite cumming, Ryujin’s body craves more. Before she’s even finished unloading inside you, she begins to thrust wildly. “Fuck, this feels so good,” Ryujin says, a smile forming on her face as she continues to drive her cock into you. She grips your waist tightly, pounding you like you were some sort of toy. “P-pussy feels so good,” she mumbles, her body acting on its own, continuing to move as she feels another climax pass through her. Ryujin’s body tingles all over as she pumps you full with another load, making the first one drip out onto the floor.

Hwasa watches from the sidelines, a proud smile on her face as she watches Ryujin lose complete control. “Oh, I forgot to mention you cum a lot,” she says casually, “More than any guy could. I can see you’re enjoying your first one a lot. Feels good, doesn’t it?”

“So fucking good,” Ryujin moaned, her grip on your waist tightening, nails digging into your skin. Ryujin couldn’t believe how good it felt to be in a woman’s cunt. She always thought that in a situation like this, she’d have more dignity, but she was wrong. She was like an animal in heat. Ryujin kept thrusting and kept cumming inside you, more cum leaking onto the floor, joining the pool that had formed.

Hwasa kneeled beside the younger idol and dragged her finger along the floor, collecting some of Ryujin’s semen, feeding it to the younger woman. Ryujin didn’t hesitate to eat it. She was getting so many new experiences out of this; she was tasting her own cum. “I think you should thank me while you’re having such a good time.” Hwasa stood back up and brought her cock to Ryujin’s lips. The younger idol didn’t hesitate for a second; she wrapped her lips around the head, tongue swirling as she continued to pound away at your cunt. Hwasa enjoyed the sight before her. She loved the hunger Ryujin had as she drove her cock against your womb. “You can see why this isn’t all bad now,” Hwasa said softly, guiding Ryujin along her shaft. Ryujin looked up at the older idol and nodded, keeping Hwasa’s cock in her mouth. Hwasa moved her hips slowly, letting Ryujin keep her focus on you.

Ryujin had one last load in her, and she made sure it found a place deep inside you. She pulled you against her, her cock rubbed against your cervix as she came. If somehow there was a spot she had missed earlier, it was now painted white with her thick cum. Your body gave out on you, and your face was against the floor right next to the puddle of cum you and Ryujin created. You felt full, your belly bloated from her many loads. Your walls still tried to milk Ryujin for more, even as she pulled out.

Ryujin’s own body was giving out; she had cum at least six times, and she felt gassed. Ryujin probably would’ve told Hwasa that fucking you was more tiring than a concert, but currently she had the older woman’s cock in her mouth. Ryujin’s tongue lapped against the tip; she could taste Hwasa’s precum and wanted more. Ryujin wasn’t a stranger to drinking cum, but getting it from a woman felt different. This left Ryujin disappointed because Hwasa soon pulled out. The change in emotions only lasted a second as Hwasa made sure to point her cock right at Ryujin’s face when she came, spurt after spurt landing on Ryujin’s face and chest, painting it with a thick white glaze. The amount felt endless, but when it was over, Ryujin was more than happy with the results. She lay back on the floor, a tired smile on her face. “We have all day, Ryujin. Let’s make sure we make the most of it,” Hwasa said, ready to make the most of the time they had left.

At the end of the night, Ryujin felt her body changing back. As she looked at her body, she saw her cock disappear. Even though she had felt worried about it in the morning, now Ryujin was left wishing she still had it. As the night continued, she imagined all the things she would do. Her perverted thoughts drifted to her members and their bodies. Ryujin wouldn’t mind getting them all addicted to her cock. The next morning, Hwasa made sure to stamp out the idea, but Ryujin would be lying if she said it wasn’t in the back of her mind as she watched her members practice.