Azumanga Daioh Fan Fiction ❯ Azumanga H-Daioh Part One: The Experiment ❯ Dominant Allele ( Chapter 7 )

A/N: here, this should satisfy the masses who have been waiting for and update for so long. Also, don't worry about Yomi, folks; she'll be coming back soon…hehehe…

 

@silenteye: we should have a debate about this, hehe.

 

Azumanga Daioh: H-Series

 

By Ashura

 

The Experiment Part 07: Dominant Allele

 

“Mmmmm…” was all Osaka could say as her best friend devoured her lips. Chiyo-chan gently stroked Osaka's cheeks as they kissed. Osaka's lips slid gently over hers, both girls lips parting just enough to slip their tongues into each other's mouths, caressing each other's small tongue.

 

“Ahh! Chiyo-chan…” Osaka gasped, feeling Chiyo-chan rub her hardened nipple, and leaned down to lick and suck on it, lightly nibbling it in her teeth while pinching on the other and squeezing Osaka's breasts.

 

“Hehe, I hope this'll make them bigger,” thought Osaka, “Ohh…squeeze `em harder, Chiyo-chan!” she moaned, crying out when Chiyo-chan squeezed her small breasts hard, her gentle caresses progressing to rough sucking and tight squeezes. Osaka moaned all the louder. Chiyo-chan smiled as she proceeded to give her best friend a mixture of pain and pleasure. This was fun.

 

“Chiyo-chan!” she gasped as she felt her small breasts being slapped hard, Chiyo-chan's hand grabbing tight onto them as she did so. She arched her head, another gasping moan escaping her lips when her other breast felt the same treatment. Chiyo-chan attached her lips to Osaka's exposed neck, and the young girl shuddered when she began sucking at the tender flesh.

 

“Hehe, mine now,” Chiyo-chan giggled, licking at the obvious hickey on Osaka's neck. She brought her lips back to Osaka's breasts, nibbling on her hard nipple, continuing to squeeze hard on Osaka's small tits.

 

Suddenly she had an idea. She sat up, and lifted her own shirt over her head, her shorts soon following as well as her cotton white panties. She crawled back up Osaka's body, straddling her own wet pussy over Osaka's lips.

 

“Eat me,” she commanded, and lowered her hips onto Osaka's outstretched tongue, which began eagerly licking at her sweet juices. Chiyo-chan moaned, but managed to hold herself together enough to grab at the jar of pills that lay on the desk. She plopped one into her mouth and swallowed.

 

Yes, she had been hesitant at first, but after seeing Tomo and Osaka in action last night, she felt the burning desire to try the pill for herself. She had wondered how it would feel, when the cock grew from her pussy, or how it would feel inside a warm mouth.

 

“Keep it up,” she ordered, “Don't stop!” Osaka wasn't planning on doing either, and drove her tongue deeper into Chiyo-chan's pussy. Chiyo-chan suddenly felt a light tingling sensation moving inside her pussy, as if something was desperately trying to escape.

 

As Osaka licked her lover's pussy, she felt something hard poking against her tongue, pushing her out of Chiyo-chan's pussy. The new cock head slid out of Chiyo-chan's pussy, and gently touched Osaka's lips. Her lips slid around it, sucking the new organ into her tiny mouth.

 

“O-On your knees,” Chiyo-chan told her. Arms still behind her back, Osaka got down on her knees and stared at Chiyo-chan's new girl-cock, now fully erect sporting a pair of ball sacs.

 

“Wow…” Osaka gasped, “It's…bigger.” Sure enough, Chiyo-chan's own cock stood 7.5 inches, a bit larger than Tomo's.

 

“You like it? Lick it all over then for me, Osaka,” Chiyo-chan told her. Osaka didn't hesitate to lean forward and lick the head of Chiyo-chan's cock, running her tongue down the entire length. She licked and sucked on her friend's new balls, making Chiyo-chan emit the cutest moans she had heard yet.

 

“Osaka-san…suck…ahhhh!” Chiyo-chan was about to command, but Osaka's lips had already wrapped themselves around her cock and her tongue continued to lick around the head. She was rewarded with the taste of precum, urging her to continue her efforts. She slid her lips down, bobbing her head as she sucked gently on Chiyo-chan's cock.

 

“Harder, Osaka!” she screamed. Osaka took her friend's cock deeper, sucking harder and licking the underside of her cock. “Ohhh yes, just like that ahhh!” Chiyo-chan suddenly spied a large wooden object near the bed, and took it in her hands.

 

Osaka's eyes went wide, but she only moaned and continued her sucking. She sucked rapidly, almost begging, urging Chiyo-chan on, even as she raised the yuri-paddle and smacked it across Osaka's ass.

 

“MMpph!” she gasped, the sudden force causing her to take Chiyo-chan's cock down her throat. She coughed and gagged, but Chiyo-chan used on hand to hold her down. This felt too good to stop now. However, Osaka had frozen up, trying as hard as she could to relax her throat muscles.

 

“N-no! Don't stop Osaka!” Chiyo-chan yelled, placing both hands on the girl's face and forced Osaka's face up and down on her cock. Osaka grabbed Chiyo-chan's waist in a vain attempt to pull away for some breathing room, but it was no use. Chiyo-chan held her there and continued to force her friend's mouth up and down her girl-cock. With enough effort she was able to force all 7.5 inches past her friend's lips, and held her there, enjoying the feeling of her cock down Osaka's throat.

 

Osaka coughed and cried with Chiyo-chan's cock down her throat. She tried to relax her throat, but she was so in shock from her friend's actions that it had changed from difficult to almost impossible. She looked up at Chiyo-chan, a pleading look in her tearful eyes.

 

Chiyo-chan just smiled and patted her head, as if to say, “good girl.” Osaka sighed, relieved her friend had decided to take it easy on her…for now, at least. “Keep going, Osaka-chan,” Chiyo-chan begged, “You want to taste my cum, right?”

 

Osaka shuddered, and her throat finally relaxed. That's right, she did. This was all to taste Chiyo-chan's cum, and now she was determined to get it. Osaka pulled her head back up to just the head of her cock, licking the tip to tease Chiyo-chan, who let out a lovely moan. Osaka then thrusted her face back down, slamming Chiyo-chan's cock back into her throat.

 

“Oh Osaka!!” Chiyo-chan cried, her hands back on Osaka's face, pulling Osaka back each time she raised her head. Osaka was ready this time, and her throat loosened enough to let Chiyo-chan's cock to pass through, and even squeezed it affectionately. The hands that were previously pushing on Chiyo-chan's waist slid around to grasp her butt cheeks, the newfound leverage making it easier for Osaka to bob her head up and down the hard cock.

 

“O-Osaka-chan, I'm gonna…I…I…” Chiyo-chan warned her, only making Osaka suck harder and thrust her head faster up and down Chiyo-chan's girl cock. She could feel the hard member twitch in her mouth, tickling her throat.

 

“Ohhhhh Osakaaaaah!” Chiyo-chan screamed, arching her hips into Osaka's face, sending her cock all the way down her throat. Her hands held her in place, with Osaka's own hands latched onto Chiyo-chan. Suddenly Osaka felt warm liquid fill her mouth, most of it spurting down her throat. She happily gulped it all down, eagerly licking and sucking Chiyo-chan's cock as she came.

 

It seemed like forever before Chiyo-chan stopped cumming, and shuddered upon feeling Osaka's tongue licking up the remains on her cock. It stayed remarkably hard even after letting out so much, to both girls' surprise.

 

Chiyo-chan frowned, remembering what she had done to Osaka. She was her best friend, after all; how could she have forced her like that. But a part of her enjoyed it…a lot. And she wanted to do it again…and again…

 

“Kinda rough there, Chiyo-chan!”

 

“Yes, I'm sorry…but you did like it, right?” Chiyo-chan asked hopefully.

 

Osaka paused for a moment. Chiyo-chan gulped, hoping she hadn't acted too hastily. She wasn't even sure why she had done such a thing to Osaka, but for some reason she wasn't regretting it. Then Osaka smiled, “Yes, I did, Chiyo-chan.” she stated, and got up off the bed. Chiyo-chan dashed to the edge of the bed on her hands and knees, worried her friend would leave.

 

Instead she giggled and walked over to the desk, “I was just wondering how to pay `ya back,” she giggled. Osaka opened the jar of pills and pulled one out and swallowed. Soon Osaka was also sporting a cock of her own. It was a bit smaller than Chiyo-chan's, about 6.5 inches, but was very thick around the base, especially at the tip.

 

“Hehe, your turn, Chiyo-chan!” Osaka said, and before Chiyo-chan could say or do anything, Osaka had forced her new cock into Chiyo-chan's mouth. She gasped in surprised, not expecting this so quickly. She was still drained from cumming in Osaka's mouth, and now had to keep up with Osaka's thrusts inside her mouth.

 

Her body shuddered and tingled all over each time Osaka thrust into her mouth. She closed her eyes and sucked at the intruding member, her tiny lips squeezing it for all she was worth. Osaka wasted little time. Down her throat it went, and she waited for Chiyo-chan to gag like she did.

 

She did a little, but after only two or three coughs, her throat eagerly sucked the large cock inside, stretching itself around it. Her throat burned and ached, but she wanted it all the same, loved feeling that cock thrusting inside her throat.

 

“Ohhh ohhh Chiyo-chan!!” Osaka cried, and before both girls knew what was happening, Osaka came inside Chiyo-chan's mouth. She licked and sucked up all the cum, but Osaka's cock twitched so violently it popped out of her mouth and spurted cum on Chiyo-chan's face.

 

“Oh wow, don't you look cute like that, Chiyo-chan?” Osaka giggled, leaning down to lick up all of the extra cum. Chiyo-chan giggled back, and turned her head to kiss her best friend, starting a wet tongue dance with each other.

 

“Hey, we can't have sex now, can we?” Osaka stated sadly, pointing down to their two cocks standing straight up. She was right; their cocks were in place of their pussies and the pink slits had disappeared entirely.

 

“That's okay,” said Chiyo-chan, smiling, “We can try something else.”

 

“Like what?” Osaka asked curiously.

 

Chiyo-chan just smiled and took a bit of the cum on her face to her finger. She reached down around Osaka and with her other hand spread one of her ass cheeks.

 

“Chiyo-chan!” Osaka gasped as Chiyo-chan inserted the wet finger into her ass. Chiyo-chan wiggled the digit inside her friend's tight hole, thrusting in and out.

 

“I started looking around this morning, and I found this book my grandpa kept hidden,” she told her, enjoying the moans and cries from Osaka, “It talked about `anal' sex and how it…”

 

“Chiyo-chan! Ohhhhh!” Osaka cried as Chiyo-chan added a second finger.

 

“…feels really good,” she finished. She leaned down to kiss Osaka, who opened her mouth and responded tongue and all. Chiyo-chan closed her eyes and continued fingering Osaka's ass hole, squeezing her ass as well.

 

“Mmmph!” Chiyo-chan gasped in their kiss, feeling Osaka's finger probing her ass as well. Osaka moaned louder when Chiyo-chan's own fingers picked up the pace, fucking her friend's ass.

 

“Ohhh Chiyo-chan yesss mmmMMM!!” she moaned and cried, begging Chiyo-chan for more.

 

“Want more, Osaka-chan?”

 

“P-Please!”

 

Chiyo-chan suddenly flipped Osaka over, and squeezed both her ass cheeks hard. The girl moaned as her ass cheeks were spread, and prepared herself to feel Chiyo-chan's fingers enter her. Instead, she felt something soft and wet at her hole, pushing inside.

 

“C-Chiyo-chan…” she shuddered, “W-what are you—ahhhhh!” she gasped as Chiyo-chan's tongue pushed its way inside her. “Ohhhh ahhhh yesss mmmMMM!!” Her friend's tongue wiggled inside of her, licking all of her insides. Chiyo-chan moaned as well, her face pressed between Osaka's ass cheeks. She pressed her lips to her friend's ass hole, pushing her tongue deeper, licking deep inside.

 

She had been curious about doing this ever since she saw it in that book. She was scared how it would taste, but it wasn't that bad. For one, Osaka's ass had already been clean. For another, she had just fingered her best friend's ass using her cum, and it tasted delicious.

 

Chiyo-chan reached up and gripped Osaka's cock in her hand as she ate her out, moving her hand up and down on the rock-hard cock. As Osaka moaned louder, Chiyo-chan took the rest of the cum left on her face and slipped it into her own ass. Oh what a feeling! She moaned into Osaka's ass, licking her out faster as she pumped her friend's cock and dug her fingers deep into her own ass.

 

She sighed and moaned at the touch of her own finger. It felt surprisingly good, to have her ass poked like this. So much so, that she almost forgot about her pleasuring Osaka, who looked back to see why her friend had stopped. She smiled and crawled back to Chiyo-chan, pulling her fingers out and replacing them with her own. Chiyo-chan cried louder, her tiny ass sucking Osaka's finger deeper. Osaka bent down and kissed Chiyo-chan as she fucked her ass with her finger, lightly twirling their tongues.

 

“Osaka, I need you,” she begged, pulling her fingers out of her slick anus, turning around on her hands and knees. “Please, I can't stand it…”

 

Osaka smiled, and grasped Chiyo-chan's ass cheeks in her hands, aiming her hard as steel cock at Chiyo-chan's entrance. She poked through her ass cheeks, resting the head at the tight hole.

 

“How do you want it, Chiyo-chan?” she asked in a teasing voice that made Chiyo-chan shudder all over.

 

“Fuck me,” she begged, “Do me hard, Osaka!”

 

A second later, she screamed. Osaka's cock tore through her ass a full four inches, forcing her hole to open wide for the engorged cock. As fast as she had thrust into her, Osaka pulled out and slammed back in again another inch. Chiyo-chan moaned and screamed, tears forming in her eyes, but she made no cry to stop.

 

Osaka's hips pivoted back and forth relentlessly into the girl, and she moaned loud at the friction between them. She loved how Chiyo-chan's body arched forward from the force of their fucking, and loved how she screamed and…

 

“Osaka!! Ohhhhhhhh God YES!” Chiyo-chan screamed, “Oh right there Osaka! Harder, right there MMMM!!”

 

…begged for more.

 

Then Osaka noticed something as Chiyo-chan's body kept moving back and forth of it's own accord. Chiyo-chan's pigtails flopped back and forth as well with each thrust, and she had the sudden desire to take them in her hands.

 

“Osaka?” Chiyo-chan asked curiously feeling her friend's hands leave her ass. Osaka kept thrusting into Chiyo-chan, and suddenly grabbed onto her pigtails.

 

“Osaka!!” she cried, feeling her hair being pulled as Osaka thrust in and out of her. The rough tugging of her hair, combined with the hard thrusting inside of her ass was driving Chiyo-chan crazy! Her cock was twitching like mad, precum flying off the tip with each thrust.

 

Osaka moaned louder, and her thrusts became faster, harder. The rapid thrusts screamed of urgency, their moans becoming louder and more desperate.

 

“Chiyo-chan!” she begged. Chiyo-chan's ass tightened around her, pulling her deeper inside, holding her tightly inside her own ass.

 

“Osaka-chan!” she begged, Osaka thrusted violently inside her, shoving all 6.5 thick inches into her. In and out in and out it went, faster and faster.

 

“Osaka, I'm…I'm…!”

 

“Chiyo…Chiyo-channnn!!”

 

“AHHHHHH!!” the girls screamed, and with one final thrust both of their cocks erupted and a stream of hot cum. One stained the bed sheets, the other coated the inside of her tight ass. The two girls shuddered and cried as they rode their orgasms, finally collapsing on top of one other.

 

Chiyo-chan's own cum now stuck to her chest as she lay on the sheets, but she didn't care. Osaka, still inside her, flipped her over and wrapped her arms around her, pulling her into a deep kiss. And, as Chiyo-chan felt her own cock twitch and Osaka's lightly thrusting in her ass, she knew this wasn't over just yet.

 

A/N: Hopefully this makes up for the lack of futa lately. I know, Chiyo-chan's OOC here…deal with it! Phew, can't believe I just wrote six pages of pure Chiyo/Osaka sex at 7 in the morning. Now to study for my Japanese final exam…

 

Next up is Sakaki/Kaorin...with a twist! Review more to get it sooner!