Leo's Naughty Cousin

The holiday season was in full swing, and Leo was bustling around the house, helping his mom tidy up and get everything in order. One afternoon, his mom asked him to deliver some festive goods to his aunt's house. "Be careful out there, Leo!" she called after him. With a nod, Leo hopped on his mom's 50cc scooter and zoomed off to his aunt's place.

When he arrived, his uncle was at work, and his aunt was busy mopping the living room floor. She welcomed Leo inside, and he handed her the holiday package, explaining, "Mom sent me to bring this to you!" His aunt replied with a teasing smile, "Oh, you shouldn't have! It's not like we're strangers, right?" Leo laughed and headed into the living room, asking as he took off his shoes, "Where's Katy?"

"She's upstairs in her room," his aunt informed him. "Her dad just bought her a new Nintendo, and she's been glued to it nonstop!" Excited to see his cousin, Leo bounded up the stairs to find her.

Katy was his aunt's only child, just reached adulthood, and still very much a playful little girl. As Leo approached her bedroom door, he decided to surprise her. He gently turned the knob and suddenly flung the door open, shouting, "Boo!"

Katy, caught off guard, leaped up from her bed, spun around to face away from the door, and frantically fumbled with something between her knees. Flustered, she couldn't seem to get a grip on it – it was a pair of underwear that had gotten stuck around her thighs, revealing her pale little behind.

She had been touching herself.

Leo, equally surprised, stammered, "K-Katy... You were... doing something naughty..." Katy's face turned beet red, and she snapped at him, "You idiot! Don't you know how to knock?!" He stepped inside and shut the door, saying, "I didn't know you were... you know."

Tears welled up in Katy's eyes, and she finally burst into sobs, burying her face in her hands. Panicking, Leo rushed over to comfort her, whispering, "Don't cry... I didn't see anything..." But Katy kept on crying, so he added, "Come on, Katy, please stop... If you keep crying, your mom will hear." This seemed to work, as Katy quieted down, though she still sniffled a bit. Leo held her close, trying his best to comfort her, but she continued to cry softly.

Eventually, Katy asked, "Are you going to laugh at me?" Leo reassured her, "Why would I laugh at you? It's normal to explore yourself as you grow up." Katy hesitated, then said, "But you just said it was naughty..." Leo admitted, "I was just teasing you. I mean... I've done it too!"

"Really?" she asked. Leo swore it was true, telling her he had started when he was ten. Katy seemed unsure, but at least she stopped crying. Leo still held her close, saying, "Look at you! You've gotten so much prettier since I last saw you!" Katy blushed and giggled, saying, "You're just trying to trick me!" Leo promised her he wasn't, and after a bit more coaxing, Katy finally smiled happily.

"Come on," he urged her, "let's get your underwear back on."

With a blush, Katy pulled up her panties while Leo watched the curve of her hips, thinking to himself, "She's really grown up!"

"Cousin... can I ask you something?" Katy hesitated, "Will I... damage myself if I do this?"

"What? How would you damage yourself? Don't think such nonsense!" Leo reassured her.

"But, I feel different than before!" Katy exclaimed.

"How are you different?" Leo inquired.

"I don't know, I just feel different," Katy replied.

"Alright then," Leo suggested, "Let me take a look and I'll tell you if anything has changed."

"No way!" Katy blushed even more.

"But I'm your older cousin," Leo insisted, "It's okay for me to take a look!"

Katy hesitated and finally agreed, on the condition that Leo wouldn't take advantage of her. Leo made a promise, and had Katy spread her legs while sitting on the bed. He knelt at the edge of the bed, looking closely at her lower body. Although Katy had put her panties back on, her shorts were still lying next to her. Leo admired her smooth, pale thighs and the slight swell beneath her beige panties, while breathing in her faint, youthful scent. At eighteen, her innocence was gradually ripening.

Leo reached for her panties, and after some resistance, Katy allowed him to remove them. He positioned himself between her legs, mere inches away from her intimate area, which was now clearly visible.

Katy had just started developing, and a few sparse, short hairs had grown in her private area. Her outer lips were still closed tight. Leo gently traced his finger over the area, causing Katy to grip his shoulder nervously.

"This is the labia majora," Leo explained, "It will continue to grow and thicken, and might even open up a bit more as you get older, you know?"

Katy nodded in agreement as Leo used his thumb and forefinger to gently part the labia majora, revealing the delicate, pink flesh within. He lightly touched the tender area with his finger, asking, "This is the labia minora, which will also grow. It's sensitive, right?"

Katy, squinting and gritting her teeth, nodded in agreement.

Leo's finger ventured slightly deeper, cautioning her, "When you're exploring yourself, don't go too deep or you could hurt yourself."

Katy's breathing grew shallow and rapid, her chest heaving quickly. Leo withdrew his finger and focused on her most sensitive spot, gently pressing against her small bud.

"Ah..." Katy couldn't help but let out a soft cry.

"This is the clitoris," Leo explained, "Stimulating it can bring a lot of pleasure, right?"

As he continued to caress her, Katy's hands went limp, and she fell back onto the bed, her face a picture of ecstasy. "Does it feel good?" Leo asked.

"Good... so good..." Katy panted, her body trembling from waves of pleasure.

Leo, who had interrupted Katy's self-exploration earlier, now devoted himself to making it up to her. He continued to gently caress her sensitive area while his free hand roamed her clothed chest, feeling her small breasts. Katy had never experienced a man's touch, and the pleasure was overwhelming. In no time at all, Leo's fingers were soaked.

"Big brother... so good... Ah... Ah... You're so good at this... it's so pleasurable... Oh... Oh... How can it feel this good... Ah... Ah..." Katy moaned.

"Do you want me to take you to the heavens?" Leo asked.

"Yeah... yeah... big brother...harder... ah... ah... I'm gonna die... ah... ah... I'm dying... oh... oh... dead already..." Katy's body was shuddering non-stop, clearly reaching her climax.

As her moans subsided, Leo climbed onto the bed and lay beside her. Katy turned and snuggled into his embrace. With affection, Leo asked, "Did it feel good?" Katy nodded. Leo continued, "So... what I interrupted earlier, I don't owe you anymore, huh?" Katy pouted, "I never said you owed me!" Leo chuckled as he looked at her.

Katy slowly closed her eyes, and Leo took the hint, leaning in to kiss her tender lips. Of course, Katy had no experience with kissing, but Leo guided her, their tongues swirling together in her mouth. Katy kept her eyes closed, looking utterly intoxicated.

Leo began to unbutton her shirt, one by one, then traced his fingers over her chest for a while. Reaching behind her to unclasp her bra, he found nothing - this naughty girl was wearing a front-opening bra. Leo fumbled for a while, unsure how to handle it. As Katy continued kissing her cousin, she skillfully pressed the front of her bra, and the cups popped apart with a "snap!"

Leo gently caressed her small, bun-sized breasts, barely more than a bump, topped with tiny pink tips. He stopped kissing her and looked down at the little mounds that formed a cute bowl shape, their pink tips telling Leo of her unblemished youth. "Recently, it's been really painful!" Katy said. "Of course!" Leo replied. "You're growing up!"

Leo bent down and took a pink bud into his mouth. Her nipple had already hardened, and he licked it gently, sucking it continuously with his lips. Katy hugged his head, letting out delighted moans. "Oh... oh... mmm... mmm..."

Kissing his way down her body, Leo used his tongue to trace a path from her navel to her lower abdomen and finally reached Katy's sacred entrance. Revisiting this familiar place, his tongue eagerly sought her sensitive bud. Katy had no idea this area could be kissed, and the sensation was so different from self-pleasure that she couldn't help but scream. Leo quickly stopped, whispering, "Keep it down, Katy."

Katy tried to hold back, but still whimpered softly. Afraid of overstimulating her, Leo began with light licks around her delicate lips. Katy grabbed a pillow to muffle her face, fearing her moans would escape. Patiently, Leo kissed her way along the crease, waiting for Katy's enthusiastic response before sucking on her tender bud again. This time, Katy wasn't as overwhelmed, and she arched her hips, welcoming her cousin's tongue. Copious amounts of her juices flowed out, and Leo couldn't keep up, some of it running down her butt crack.

Leo was quite the tease, turning Katy over and urging her to raise her hips, which she obediently did. He extended his tongue, sensually licking her from her clit, gliding over her lips, all the way to her backdoor, making her giggle with pleasure. He continued his erotic exploration, leaving her feeling weak and drained, only to focus back on her clit with intense attention. Katy was in ecstasy, writhing and trying to escape, but Leo held her firmly in place, eventually making her climax again.

"Oh... oh... oh, Cousin... you're driving me wild... ah... ah..." Katy moaned.

Her juices squirted out, drenching Leo's face, but he didn't mind, eagerly savoring her until she was finished. Afterward, he fetched a tissue to wipe his face clean.

Katy lay exhausted on the bed, her body limp and spent. Knowing she wouldn't recover quickly, Leo let her rest undisturbed. After catching her breath, Katy couldn't help but lay there, still looking dazed. Leo fetched her underwear and handed it to her, asking, "Have you had enough, little vixen?"

Katy playfully pouted, "You're teasing me..."

Leo helped her put her clothes back on, saying, "Rest up, and get up when you're ready. I came here to play video games with you. Your mom said you just got a Nintendo."

Katy lazily lounged on the bed for a moment before mustering the strength to sit up. She asked Leo, "Have you ever played Nintendo before?"

"No, is it the one that connects to the TV?"

"Yes!" Katy excitedly pulled a game console from under the table, "It's so fun! Let's play Super Mario. I'll teach you!"

She connected the console to the TV, and the two of them began playing, the room filled with noise and laughter.

"Cousin! Eat that mushroom... watch out... that turtle is coming... jump... jump... eat the flower... hit it... keep hitting it..." Katy enthusiastically coached Leo.

"Katy! Leo! Don't go crazy!" Katy's mom entered the room, announcing, "Leo, I called your mom. You'll stay for dinner and then head home. It's ready, come eat!"

"Alright!" Both Leo and Katy responded, their fingers still mashing buttons.

"Come on now, you can play more later!" Katy's mom urged.

Reluctantly, they paused their game and went downstairs to eat. They quickly wolfed down their food, barely touching their plates, declaring, "We're full!" before rushing back upstairs to resume playing.

This time, they played for more than two hours, thoroughly enjoying themselves. Eventually, Leo said he wanted to leave, to which Katy clung to him and pleaded, "You have to come back tomorrow, big brother!"

Leo leaned in and kissed Katy, their eyes locking. Suddenly, he asked, "Katy, do you want to take a look at me?"

"What?" Katy was puzzled.

"Take a look at this!" Leo guided her hand to touch his crotch.

"I... I... I'm scared..." She said she was scared, but she didn't say she didn't want to.

"Well, I've seen yours, so it's only fair that you get a look at mine too!" Leo said.

He unbuckled his belt, slid down his pants, and then pulled down his underwear, revealing his dark and erect manhood. Katy looked at it shyly, and Leo encouraged her to squat down for a closer look.

"Wow, so much hair!" Katy exclaimed as she squatted down. "So... this is what a man looks like...?"

"Yes... this is... this is the 'grow-up mushroom'," Leo joked.

"A grow-up mushroom? If I eat it, will I grow up?"

"Yes! If you eat it, you'll grow up!" Leo laughed, "Go ahead, give it a try!"

Katy hesitated, but then she thought about how pleasurable Leo had made her feel, and decided not to refuse him. She hesitantly opened her mouth and took just the tip into her mouth, tentatively licking it a few times. Finding it not as scary as she thought, she proceeded to take it all in.

"Be gentle, little sister, don't bite me!" Leo quickly warned.

With his member in her mouth, Katy looked up at Leo and smiled seductively, making him flush with excitement as he grew even harder.

"Ah!" Katy quickly spat it out, "You tricked me! It's actually the mushroom that grows!"

Leo laughed triumphantly, while Katy stared at his fully erect member, glistening and throbbing, seemingly nodding at her.

Leo began to teach her how to stroke him and how to lick the tip. Katy's small mouth could barely fit the head, but she eagerly sucked on it. After a while, Leo taught her to lick a specific sensitive area, and she asked him while doing so, "Does it feel good, big brother?"

"Very good!" Leo replied.

However, since Katy lacked experience, she only made him harder without making him climax. Leo's lust grew, but he was hesitant to go all the way with her. Realizing that something had to change, he asked her, "Katy, do you want to watch a man masturbate?"

"Um?" Katy stopped and looked at him, puzzled.

"Come on!" Leo led her to sit on the edge of the bed, and while stroking himself, he said, "Like this... you have to do it really fast..."

"Ah! So that's how it's done?!"

As Leo pleasured himself, he pulled Katy closer and kissed her lips. She immediately engaged him in a passionate tongue battle. Leo's right hand stroked himself more aggressively, while his left hand slipped under Katy's arm and gently massaged her small breast. He simultaneously enjoyed pleasure from three sources, his arousal building to a crescendo. Feeling that he was about to climax, he quickly pulled away from Katy's lips and said, "Katy, quickly, lick me!"

He applied pressure on her shoulders, pushing her down. Katy obediently opened her mouth, just about to take in the tip, when suddenly a stream of white, sticky fluid shot out from his slit. Some of it splashed on her face, while some went directly into her mouth. Leo held her in place, making her take him in her mouth as two or three more spurts of his seed filled her oral cavity.

With her mouth full of his warm essence, she couldn't spit it out, and Leo encouraged her, "Good girl, swallow it."

Holding her breath, she swallowed in one gulp. Leo then instructed her to clean him off, and as she gazed at his now wilting manhood, she remarked, "The big mushroom is broken!"

Leo embraced her, reassuring her, "It's not broken. When you grow up a bit more, it'll give you even more pleasure!"

Katy understood Leo's meaning and said, "Mmm, I'll grow up quickly!"

Leo pulled his pants back on, and he and Katy went downstairs together. Leo's uncle had returned, and was watching TV in the living room with Leo's aunt. Leo said his goodbyes to them and rode off on his bike.