"Yeji unnie, I'm going to skip class today and stay home, I'm not feeling very well."
Yeji looked up from her newspaper and saw her younger cousin, Ryujin, standing in the doorway, slightly hunched over with a blanket draped over her shoulders. She knew she loved the classes she was taking at their city's community college and wouldn't miss them if she could help it. She looked quite miserable indeed - beautiful for sure, with her 5'9" frame, small but cute breasts, creamy complexion, and long inky hair, she looked essentially like a twenty-year-old mirror image of her aunt - but definitely miserable.
"What's wrong, Ryuddaeng?" she asked, frowning at her from the kitchen table.
"Cramps," she replied. "They're really bad this month." Some girls might feel a bit embarrassed talking about their periods to their others, but Yeji was a doctor at the local hospital, and Ryujin knew she'd heard and seen far worse at work.
"Poor baby," she said sympathetically. "Have you taken anything?"
"Some Midol about an hour ago but it's not helping." Ryujin winced and pulled the blanket tighter around her.
Yeji got up and reached into a high cabinet, where she kept various over-the-counter and prescription drugs. She pulled out a bottle of muscle relaxers, left over from surgery her girlfriend had last year. She hadn't taken one in months and was away visiting family for the week so Yeji assumed she wouldn't miss one. She took out one of the pills, poured a small glass of water, and handed both to her cousin.
"Take this and go back to bed, sweetie," she told her, putting a hand to her cheek. "I'll come back and check on you in a couple hours."
Ryujin obeyed, saying, "Thanks, unnie," and turned to go back upstairs to her room.
***
Yeji spent an uneventful morning at the hospital tending to about 10 patients, mostly women, more than one of whom made no attempt to hide their interest in her. It wasn't the first time she'd been hit on at work, and while she was a tall and gorgeous lady in her thirties with no signs of aging showing around her gut and in her hair, she suspected her soft, smooth voice helped draw women in. Her girlfriend often told her it was the thing she loved most about her.
As she promised she would, Yeji returned home later that morning to see how her cousin was doing. She knocked on her slightly ajar door and pushed it open when she didn't respond, finding her lying back in bed, her eyelids drooping as she stared at her TV.
"Sweetie? How're you feeling?" she asked her cousin, sitting next to her and tucking a stray piece of hair behind her ear. Her blanket was a bit askew, and as she went to rearrange it for her he realized one of her breasts had escaped the confines of her tank top, leaving her nipple exposed. Turning slightly red, Yeji covered her with the blanket.
Ryujin looked at her with glassy eyes, her lips in a slight pout. "I'm so tired, unnie, but I still have cramps and can't fall asleep. Should I take another pill?"
Yeji sighed and went back downstairs to retrieve the bottle of muscle relaxers and another glass of water. Once back in Ryujin's room, she broke one of the pills in half and held it and the water out for her to take. Instead, Ryujin stuck out her tongue, signaling for her to put it in her mouth. She chuckled and did so, but she was so out of it her mouth didn't quite open all the way and her lips ended up wrapping around her fingers.
Feeling a slight twitch in her cock, Yeji snapped her hand back, immediately feeling shameful. Ryujin didn't seem to notice, only mumbled "aw-er" through her still open mouth, clearly asking her to pour some water down her throat so she could swallow the pill. She did so, careful not to spill any on her.
"Thank you, unnie," she said, settling her head back against her pillow.
"I wish there was something else I could do for you, sweetie," Yeji said, again petting her cheek with her hand. Ryujin seemed to enjoy the sensation and closed her eyes.
Yeji's eyes strayed downward, toward her body softly rising with her breaths underneath her blanket. She still wasn't covered all the way, and telling herself she didn't want her to get cold, she adjusted the blanket so it was resting over her entirely and gently tucked it in at the sides, her hands brushing her soft skin.
Watching her younger cousin looking so peaceful, lips slightly parted as she dozed, Yeji realized there was one thing she could do to alleviate her pain. She thought back to the many times her girlfriend had asked her for assistance with her cramps during her period.
Again feeling shameful, Yeji tried to push the thoughts from her mind. Ryujin was her baby cousin, she couldn't do anything like that to her. It would be wrong.
Suddenly Ryujin let out a little cry of pain and clutched at her abdomen, pulling the blanket into her hands. Her breasts - both of them now, as she'd managed to pull at her tank top along with the blanket - were both exposed, the nipples hardening against the chilly air. She had a pained look on her face.
Unable to tear her eyes away from her breasts, Yeji decided she should help her cousin. It would be purely medical, after all. She put her hand to her cheek once more, then let her fingers trace down her throat and sternum before pausing just above her breasts. Trembling slightly, Yeji began caressing and cupping them and running her thumbs over her nipples, marveling at how lovely they felt in her hands.
Not letting herself think, she leaned down, put her lips around her right nipple, and began circling it with her tongue while she gently pinched the left one.
Ryujin's eyes fluttered open as she abruptly became aware of a tingling sensation in her nipples. She felt a hazy sense of alarm when she saw her cousin putting her mouth on them.
"Y-Yeji unnie," Ryujin said softly. "What are you doing, unnie?"
She took her mouth off her breast just long enough to say, "Don't worry, baby, unnie's going to help you feel better," and lightly bit her nipple, pleased to feel her shudder.
"You shouldn't be doing that, unnie, it's wrong," Ryujin said. She tried to lift her arms to push away her head but she felt like her entire body was weighed down.
Yeji looked up and saw that Ryujin could barely keep her eyes open, let alone try to push her away. She realized the muscle relaxers had rendered her cousin practically immobile, and the thought of being able to touch her however - and wherever - she wanted pushed down any feelings of guilt and made her instantly hard.
"It's okay, sweetie, I'm a doctor," said Yeji, pushing down any feelings of guilt and rubbing Ryujin's nipples. "Let unnie help you."
"Yeji... unnie... " Ryujin struggled to speak.
She put a finger to her lips. "Shh, baby, you're going to feel so good when I'm done. No more cramps." She pushed the finger into her mouth and swirled it around, loving the way her tongue felt against her skin.
As she continued suckling her cousin's nipples, Yeji decided it was time to explore more of her body. She stood and pulled the blanket off her, excited by the sight of her simply laying there like a doll in her tank top and panties. She looked like a model.
"I'm cold, unnie," Ryujin mumbled, wishing she could cover herself with her arms. She could barely raise them off the bed.
"I'll warm you up, sweetie." Yeji undressed herself, all the while staring hungrily at her cousin's beautiful body.
Ryujin's eyes fluttered open and she saw her standing before her, nude and erect. She'd seen her cousin in her swim attire before so she knew she had a nice body, but hadn't seen her cock - 8" long and nearly 6" around - until this moment and was ashamed of the way her pussy throbbed upon setting eyes on it.
"No, unnie, what are you doing?" she asked again, her voice in a whimper.
Yeji laid down and curled up next to her on the bed and said, "I told you, baby, I'm going to make you feel better." She pulled her closer to her and cradled her head with her right arm, slowly running her left hand over her legs and stomach and breasts. "I love you so much, sweetie, I just want you to feel good," she whispered in her ear.
Softly kissing her neck, Yeji rested her hand over Ryujin's panties and pressed down.
"This isn't right, unnie," Ryujin whispered. Even as she said the words felt a familiar pull in her abdomen and knew the more her cousin touched her the quicker her body would betray her.
"I'm a doctor, baby," she said again. "Unnie knows best, she knows just how to take away the pain."
Yeji applied pressure to her cousin's mound, all the while continuing to kiss her neck and breasts. At that moment she knew she was going to fuck her - there was no turning back at this point - but she didn't want to hurt Ryujin. She wanted her as aroused as she was and given her sleepy state she knew the only way was lots and lots of foreplay.
She sat up, moved further down the bed, and pulled Ryujin's panties off. She whimpered as she gently spread her legs open and moved her face close to her neatly trimmed cunt. She could see she had in a tampon so she pulled it out and tossed it into her bedside trash bin, then placed her thumb on her clit.
Ryujin, still unmoving but her breaths becoming more shallow, moaned. Yeji's cock ached at the thought of her little cousin enjoying her touch and she rubbed her clit in small circular motions, slow at first then gradually faster.
"Unnie, don't..." Ryujin said in a small voice, but her hips were swiveling ever so slightly. Keeping her thumb on her clit, Yeji slowly ran the fingers of her other hand against her cousin's slit and was thrilled to discover that between her blood and her pussy juice she was soaking.
"Baby you're so wet," she said breathlessly, already anticipating the moment her cock would enter her drenched hole. She wanted her to cum first, though, knowing it would alleviate her cramps - and send even more juices pulsing out of her.
Ryujin felt an orgasm building deep within her and were it not for the drugs clouding her mind she would have been filled with self-loathing. She felt so dirty, just laying there, aroused by her own cousin, not only knowing she was ultimately going to fuck her - but looking forward to it.
Yeji was desperate to feel the inside of her cousin's cunt against her hand and slowly slid her middle finger into her folds, exhaling in wonder at the tightness. She pumped her pussy a few times as she moaned, then added her forefinger and curled her fingertips upward to hit her G-spot.
Ryujin knew she wouldn't be able to stop herself from cumming. She couldn't move of her own volition but her hips started to buck involuntarily. Her cousin picked up speed, rubbing her clit and thrusting her fingers in and out of her, finally pressing down hard on her pubic bone.
"Cum for me, baby," Yeji said, feeling her cousin close to an orgasm. "Be a good girl and cum on unnie's fingers, let unnie make you feel good."
At her words Ryujin felt herself lose control. She was hit with waves of pleasure, the walls of her pussy contracting again and again, for what felt like hours. Weighed down by the pills she barely made a sound, but Yeji could feel her orgasm against her hands and knew she liked being touched by her.
"That's it, Ryuddaeng, just let go," she said, carefully taking her fingers out of her hole and her thumb off her clit. "Such a good girl, getting ready for unnie and letting her know how much you want her cock."
Ryujin simply lay there, covered in a sheen of sweat. Even if she wanted to, any hope of stopping her cousin from fucking her was gone; she could barely move before she came and now she felt like little more than a ragdoll.
Yeji hovered over Ryujin, kissing her all over whispering "good girl" and stroking her cock, making sure it was as hard as possible before she entered her. She lifted her shirt up so she'd have full view of her breasts jiggling and rubbed the head of her cock against her cousin's swollen clit, causing her body to twitch.
"I'm going to fuck you now, baby," Yeji said, almost more to herself than to Ryujin. She pressed her cock against her slit and finally pushed into her.
"Unnie..." Ryujin moaned, feeling suddenly and wholly full as her cousin's cock entered her.
Yeji gasped. After feeling with her fingers how tight she was, she'd expected to have to slowly work her way into her cunt, but it was so slick it easily accepted her. Still, she was so tight against her cock the pressure was immense and she thought for a moment she might cum right then and there. She had to be still inside her for a moment to collect herself.
Staring down at her beautiful cousin, her eyes glazed over, mouth slacken, arms splayed out at her sides, breasts on full display and gently rising with each breath she took, legs spread wide, and dripping pussy stretched out by her sizable cock, she knew she wasn't going to last long.
Ryujin waited for her cousin to start thrusting in and out of her, hazily wondering what she was waiting for. Now that she was inside she wanted nothing more than to feel her sliding in and out of her.
"Please, unnie," she said, and she swore he detected neediness in her voice.
Yeji began pulling out and pushing back into her cousin, reveling in her sopping tightness. Once she got a rhythm going she leaned over her and put her face close to hers to whisper in her ear.
"You're being such a good girl for unnie, sweetie. You look so beautiful taking unnie's cock... your pussy feels so good... I just want to make you feel as good as I feel right now. I want you to cum on your unnie's big, thick cock... I want to feel your cunt tighten around me, baby... just relax and let unnie have you..."
Ryujin felt a tightening in her pelvic area again. She couldn't believe it - she'd already cum on her cousin's fingers, and now she was going to cum all over her cock? What was wrong with her?
Yeji felt like another person. Somewhere in the back of her mind she knew what she was doing was terribly, terribly wrong but she couldn't make herself care, not with her cousin's pussy lips wrapped so tightly around her.
"Come on, be a good little girl for unnie... I know you want it, I can feel you getting tighter... You like being used by unnie, don't you sweetie? It feels good to just let go and let unnie use your dripping pussy... just like I'm going to tomorrow... and the day after that... and the day after that..."
Her cousin's words pushed her over the edge. Ryujin came once again, and hard, her body shaking.
The sight of her blood-and-juice-covered cock plowing her cousin's wet, tight pussy, while she just lay back and take it, her breasts bouncing, little moans and whimpers escaping her lips, combined with the sensation of her hole clenching on her cock, was too much for Yeji. She'd planned to pull out and erupt on her soft belly but she couldn't stop herself - she groaned and exploded inside Ryujin's cunt, her cock throbbing with every ribbon of cum. When the last drop was nestled deep within her cousin's pussy, Yeji collapsed atop her, breathing hard.
Ryujin felt her cousin's hot breath as she nestled her face into her neck and began kissing her. "That was incredible, sweetie, you felt so good."
"Unnie, we shouldn't have done that," Ryujin whispered, even as her pussy continued pulsing post-orgasm. She felt her cum start seeping out of her hole, down her ass and onto her sheets.
"It's okay, baby, it was just to help with your cramps," Yeji said, running her fingers over her skin. "You feel better, don't you?"
Ryujin remained silent, unwilling to admit that not only was the pain in her abdomen gone, her body was in a state of complete bliss.
"Of course you do, unnie felt you cum on her fingers and cock," she continued. "And unnie's going to help you again tomorrow, baby, you want that, don't you? To feel unnie's cock stretching you out again?"
Ryujin hated herself then, because she was absolutely right - she did want to take her cock again and feel her cum filling her up.
"Yes, unnie."