This story came up in my mind as I was working on my other story, Detention. This is the uncut version of Detention. Shinichi and Shiho are still going out in the beginning. This is an AU fic. Lemon warning in the story.

Disclaimer: I do not own Detective Conan. It belongs to Gosho Aoyama.

Summary: Shinichi and Shiho became a couple. That was until Shiho became Shinichi's chemistry teacher and now they're keeping it a secret.

After School 'Punishment'

It's a normal day at Teitan High, students' passing notes in class, teachers giving out class work. A couple of class periods went by and now it's the last class of the day. However, Kudo Shinichi, famous high school detective, was actually excited to go to the last class hour, which was chemistry. Other than Shinichi, the whole male population that was in that class was also excited. The reason was 'the hottest teacher of the school,' Miyano Shiho. Miyano Shiho is a seventeen year old student teacher with the fully developed body. Her short, strawberry blonde hair, slim body, beautiful aquamarine eyes, full pink lips, curvy hips, and finally that smirk that's permanently attached to her facial features. Everyone calls her the 'ice queen' because of the cool, detached expression on her face. But she does have a fun side of her; she's funny and really loves to tease her number one student/secret boyfriend, Kudo Shinichi. As all the male students ran inside the class room, Ran caught up with Shinichi, who was trying to get into the room. 'Aw great, what does she want now? I just broke up with her seven months ago and she still doesn't understand that we're through. I mean we're still friends and all but she's too clingy.' Shinichi thought as he groaned when he saw Ran in front of him. "Hi. Shinichi, I was wondering would you like to go on a date with me."

'Here we go again.' Shinichi rolled his eyes, obviously aggravated. "Listen, Ran, we took our chance at a relationship and it didn't work out. Can you just accept our friendship and move on?"

"No." She said firmly. "I will never give up my love for you, I will wait for you."

The bell rang for class to start, Shinichi and Ran entered Miyano-sensei's chemistry class while the girls was silently carrying conversations and the boys looking at Shiho, full of lust. She was wearing a tight red dress that stopped an inch above her knees, showing her curves and an appropriate amount of cleavage, with matching red heels and her usual lab coat. 'Damn, she looks amazing. I wonder how can I get her alone today?" His pants felt slightly uncomfortable. When Shiho was writing the class assignments on the board, she turned around and the class' heads in their books working on the assignment except for Shinichi. She smirked when she saw his red face, with an 'out of space' dazed look in his eyes, and his legs crossed uncomfortably.

'Ah, it seems that detective is in a complication.' Shiho thought amused.

'Umm, think about cold water, no, umm puppies…arrgh, Genta and eels…ah there we go.' Shinichi thought, finally getting under control.

Shiho strolls over to Shinichi's desk and decides to play with his head. Everyone watched as she approached Shinichi with a small smile on her face, Ran and Sonoko also watched; Ran felt a pang of jealousy. "Why are you flustered, Kudo-kun?" You should really start working on your assignments instead of fantasizing of certain things." She stared at him amusingly as she saw him switched to a confused expression to a scowl on his face. It's a game that they play, Shiho always embarrass Shinichi when he gets into this 'predicament,' that's why she occasionally wear these appealing dresses, just to tease Shinichi. As for Shinichi, he always teases her back but he said something that the students, Ran, or Shiho thought he would never do.

"Sorry about that Miyano-sensei. I was just looking at your amazing body with that sexy red dress on. You must knew that red is my favorite color, you tease." Shinichi said while licking his lips slowly, staring at her with a predatory look in his eyes. Everyone was shocked and was thinking, 'Did Kudo Shinichi actually said that to Miyano-sensei.' Shiho was also shocked as she felt a shiver run down her spine from the look that Shinichi is giving her but the person who was in most shock was Ran. 'Is he flirting with Miyano-sensei? I'll probably ask him after class.' Ran thought, desperately wanting to find out the answer. Shiho was pleased that he felt that way but was mostly filled with rage that he said that in front of everyone.

She wanted to slap him, HARD, but she thought of something else. "Oh, is that so, Kudo, well you're going to stay here after school and clean everything in this room as your punishment," she said in a very icy tone. The students gasped because Shinichi never got in trouble before, well that was before Miyano Shiho came along.

"No fair! You can't do that, it's your fault for wearing THAT!" The young detective exclaimed.

"I can and I will, and for that outburst, you're going to stay an extra hour here and will be writing a 1,000 word essay on chemistry." Shinichi groaned, 'Great, another hour, it can't be that bad because she's going to be here with me.'

"Now, since everything is under control, you all are going to work in groups to create your own compound." The class paired up in groups of three, Ran and Sonoko approached Shinichi because they knew that he know these kinds of things.

"Come on Shinichi, let's finish this assignment since you know about this stuff," snorted Sonoko.

"Alright, alright, I'm coming," he grumbled.

Shiho watched the group working on the assignment. She was actually watching Shinichi; she began dating Shinichi four months ago. They met at a local park, they chatted, exchanged numbers, and started going on dates. Shinichi confessed to her when they came back to the park for a date and she confessed her feelings to him too. Miyano Shiho loves everything about Kudo Shinichi, his intelligence, his handsome face, those striking cobalt-blue eyes, and his smooth deep voice. They're still a couple but they don't express their love at school, well, try to. But she knows that this love is forbidden now, for he is a student and she, his teacher, but Shiho chose to ignore the forbidden love because she loves Shinichi too much to give up their relationship. Shiho knows that Shinichi loves her too, but he doesn't want Ran or the school to know his secret love for his teacher. Working on their compound assignment, Shinichi, not paying attention to Sonoko's and Ran's rambling, was day dreaming about Shiho, a very lustful day dream.

Day Dream

It was early in the morning, about 6:00 a.m.; school didn't start until 8:30. Shiho, who came early to type papers, was inside her class room looking at the sunrise through one of the windows. Out in the hallways was Shinichi, he came to school very early to give Miyano-sensei a 'visit' because he knew that she comes to the school around this time.

He saw her standing in front of the class room windows. She was wearing a baby blue blouse with a white skirt that stopped four inches above her knees. The sunrise highlighted her hair, giving it a red and golden glow. Her matured face having a calm and serene expression with her arms folded across her chest.

'She really is gorgeous,' Shinichi thought. He snuck into the class room, camouflaging with the shadows. Shiho's body tensed when she felt a strong arm wrap around her waist. She tried to fight back but he was too strong.

"Who are you and what do you want?" She bit out with a touch of fear in her voice; she never thought it was Shinichi because it's too early.

"It's me," Shinichi said seductively, "and what I want is you." He pressed his hard body against her soft one. Shiho blushed furiously for a quick second before it was replaced with her poker face. She shivered when she felt Shinichi's hand grazing her clothed stomach.

"Kudo, you know this isn't allowed." She said firmly.

"Well, it isn't, but it's not time for school to start yet and you're not teaching." Shinichi said while smirking, knowing that he got her attention.

He kept rubbing his hands across her stomach, now lifting it up to feel her skin.

"Kudo, if you don't stop I will rip your arms off." Shiho said half-heartedly, moaning quietly. She tried very hard to get his hands off of her but his grip is too tight. He chuckled lightly in her ear, "You're not going to get away from me that easily," he said licking the outer shell of her ear.

Shinichi's pants tightened and Shiho gasped as she felt his 'desire' press against her back. He started to slowly unbutton her blouse and began planting butterfly kisses on her neck. She grabbed the back of his head, urging him to continue his assault on her neck, whimpering, right then and there, he knew he got her. Shiho started to squirmed against him, his 'desire' growing bigger. Shinichi groaned loudly as he was feeling his teacher/girlfriend rub up against him.

"You must like that, huh, tantei-san." Shiho teased, turning around to see Shinichi face-to-face, her blouse unbuttoned showing a white spaghetti-strap tank top. He smirked, "Not as much as you going to like this." Shinichi swooped down and hungrily pressed his lips against hers, his tongue licking her lips asking for entrance. She parted her lips a little, just enough for his tongue to slither through. He played with her tongue, both battling for dominance. Kissing passionately, Shiho's hands wandered over Shinichi's body, she began to unbutton his blue blazer and his white shirt. After he was shirtless, her hands started to rub themselves against Shinichi's nipples, they erected under her fingertips. Shinichi moaned loudly in her mouth when she started to caress his muscled stomach, Shiho bit his bottom lip to keep him silent. Then her hands traveled past Shinichi's waist into his boxers and began rubbing his erection. His eyes opened and he broke the kiss, pleasure flowing through his veins.

He picked up Shiho and moved them towards her desk. Shinichi cleared everything off the desk and put Shiho on top of the desk. Moving in between her legs, Shinichi bit her neck, not so hard that it drew blood but enough to leave a mark. She moaned in ecstasy as she felt one of Shinichi's hands grab her right breast and his other hand caressing her below under her skirt. Not feeling enough skin, Shinichi took off her blouse and spaghetti-strap tank top, leaving her in her bra. Soon, he unhooked her bra, letting her breasts free. He caressed them until he felt her nipples erected, he leaned down and sucked on the tight pink bud on the right while his hand kneaded the left. A short moment later, he switched sides.

"Ahh, Kudo-kun, that feels so gooood," Shiho moaned out.

"Your breasts are so perfect and soft, Shiho or should I say Miyano-sensei," Shinichi softly growled out, his pants feeling very uncomfortable.

Shiho stood up and switched their positions, Shinichi is now pushed up against the desk. Her hands traveled to his upper body to his pants, she unbuttoned and unzipped his pants, pulling it halfway down to his thighs. Shinichi impatiently removed Shiho's skirt, grabbed her butt and grinded his boxer-clothed erection against her panty-covered core, releasing a needy cry from Shiho. He rolled his hips against hers, "You feel that," he thrusted his hips for emphasis, "that's how you affect me," he whispered hotly in her ear, groaning as he felt a pressure building up in his lower body. Simultaneously, both ripped off the last offending clothes on their body, their underwear.

Shiho stared at Shinichi's lean but muscular body, eyes going lower and stopped. 'Oh my…he's big!' Shiho thought, licking her suddenly dry lips, can't wait to feel him inside of her. She came up to Shinichi, pressing her nude body against his and wrapped her arms around his neck, she kissed his lips lightly. Shiho's tongue separated his wet lips, tasting his inner cheeks then his sweet tongue. Too caught up in the kiss, Shinichi didn't notice that Shiho laid him down on her desk and got on top of him. Shinichi broke the kiss and flipped their positions so he was on top.

He sucked on her neck while his fingers entered her, Shiho's eyes widened, begging for more as her right arm held Shinichi's head in place against her neck. 'She's so slick and ready for me.' Head still buried in her neck, Shinichi pushed in gently, waiting for her to adjust, then started a small rhythm. Shiho gripped his shoulders moaning out 'harder', 'faster' and he complied. Shinichi thrusted deeper and deeper into Shiho as she chanted his name softly, "Shinichi, Shinichi, Shinichi," screamed Shiho.

End of day dream

Shinichi snapped back into reality, blushing furiously, and pants tight, breathing heavily with beads of sweat on his forehead.

"Shinichi, are you okay?" Ran asked with a worried expression on her face.

Shinichi bowed his head and doesn't answer.

"Don't bother him Ran, look at him, his face is flushed, breathing irregularly, and he's EXCITED." Sonoko whispered, "You can tell that he's thinking about something dirty or you." Ran turned a deep shade of red, a spark of hope in her heart from Sonoko's words.

'I miss you so much Shinichi, I'll do anything to win your love back.' She doesn't even consider the fact that it could be Miyano-sensei having that effect on him because it's illegal but she realizes that Shinichi flirts with Miyano-sensei everyday and gives the teacher a loving, slightly lustful look.

"Kudo-kun, could you please meet me in the hallway, now?" Shiho said to save Shinichi the embarrassment.

"S-s-sure," he stuttered, following her out the door quickly as possible.

"So, Kudo-kun, please enlighten me why you are day dreaming in my class." Shiho smirked, teasing him.

Shinichi scowled, "I told you to call it's okay to call me Shinichi in school, it's bad enough that you call me 'Kudo' when we on a date in public whenever you see your colleagues or you students." He sighs then continued, "I think you should stop wearing the dresses too, you can wear it when we're alone but not in school, the guys are getting the wrong message and you belong to me."

"Oh, is that so, great detective, what makes you think that?"

"I don't think so, I know so." Shinichi replied cockily, placing a chaste kiss on Shiho's lips, the kiss ended quickly a few seconds later.

"That still doesn't explain why you are day dreaming during my class?" Shiho said but already know the answer.

"Okay, okay, I was thinking about one of my fantasies of you." Shinichi said nervously hoping that she wouldn't kill him, but what she said surprised him. "What was your fantasy about?" She asked, looking for anyone that could be in the hallway before wrapping her arms around his neck.

His nose almost bled when he told his dream to Shiho, eyes glazing over in lust, Shinichi grabbed Shiho's waist and brought her to a needy kiss. Without warning, she slapped Shinichi, HARD!

"Ow! What was that for?" He asked, rubbing his red cheek.

"You idiot, someone could've seen us and you would've been expelled while I'll be fired or arrested!" Shiho whispered harshly.

"Ah, sorry about that, I got carried away." Seeing that the hallways is still cleared, Shiho buried her head on Shinichi's chest, murmuring 'it's okay', Shinichi wrapped his arms around her body, caressing her hair, lightly kissing her forehead. They stayed like that for a couple of moments, feeling peaceful around each other.

"We should probably go back into the class room before anyone tries to eavesdrop." Shiho said not wanting to leave the warmth of Shinichi's body.

"Yeah, probably so, but after this," Shinichi looked around then enveloped Shiho in a soft, passionate kiss.

"I can't wait to torture you after school." Shiho said with a mischievous look in her eyes. The couple went back into the room, back into their student/teacher mode. Shinichi returned to his group and started on the compound with Sonoko and Ran. "What happened out there between you and Miyano-sensei," asked Sonoko.

Shinichi gave her a lazy look, "Nothing happened, she just told me that she has a lot of work for me to do after school."

"Sonoko and I will be waiting for you outside until you're done." Ran said. Actually Ran and Sonoko is going to spy on Shinichi to see what really goes on after school with Miyano-sensei since he's been getting in trouble with her every once and a while.

"Okay, okay that's fine." Shinichi said, not caring at all. Ten minutes later, the bell rang signaling the end of school. Everyone left the class and all the boys sent Shiho a wink, Shinichi glared at them as they left. Ran and Sonoko were the last to go and they hid in one of the rest rooms, waiting for the halls to clear and Miyano-sensei's door close. After the coast was clear, they ran back up to the door, unfortunately Shiho pulled down the blinds, they peeped through a tiny slot of the blinds. Shinichi, still in his seat, watched Shiho as she walked seductively to him. She leaned over his desk and whispered softly in his ear, "Ready to be punished, tantei-san?"

Shinichi nodded his head, his hands gripping the desk, anticipating for what was about to happen, lust-filled eyes staring into equally lust-filled aquamarine eyes. "Stand up for me." Shinichi stood up from his desk; Shiho cupped the back of Shinichi's head and crashed her lips upon his. Wanting more, Shiho deepened the kiss and entered her tongue in his mouth. She coaxed his tongue to play with hers; he responded and wrapped his arms around Shiho's waist. Breaking the kiss several moments later, Shiho's hands started working off Shinichi's buttons on his shirt. With his shirt off, Shiho placed hot kissed on Shinichi's nipples and trailed lower to his stomach. Shinichi brought Shiho's head back up and pressed his lips against hers, backing her up against the wall. Shiho wrapped her long legs around Shinichi's waist, moving her hips erotically against him.

"You're killing me, Shiho." Shinichi panted in her ear, pushing his hips along with Shiho. Shiho removed her legs from his waist and pushed Shinichi against the wall, pulling his pants down ever so slowly. He was in his boxers, his erection poking out through the slit of the underwear. Her mouth enveloped him, Shinichi moaned uncontrollably, fisting his fingers in her hair to get a good rhythm. She stopped abruptly before he came.

"Why did you stop?" Shinichi asked needing a release.

"Remember what I said about your punishment," she roughly pushed Shinichi onto her desk and began stripping her clothes off. Now fully nude, Shiho removed Shinichi's boxers and climbed on top of him. She ran her fingers over his dusky nipples, nibbling on his ear in the process. The lower part of his body throbbed painfully, wanting to be deep inside of Shiho. Shiho stopped her assault on Shinichi and impaled herself down on Shinichi's erection. He hissed in pleasure as he was covered in warmth as Shiho started a slow rhythm.

She's torturing Shinichi, slowly riding him, not increasing speed or taking him deep inside her.

"Please, Shiho, go faster, this is torture." Shinichi moaned, getting an idea.

He grabbed her breasts, his thumb sliding over her nipples, sitting up to suck on her nipples while his other hand played with her other breast. Shinichi rolled his warm tongue over her then blew cool air making it tighter. Shiho pushed Shinichi back down on the desk and started to pick up the speed, a loud moan escaping her mouth as Shinichi caressed her breasts again. As Shinichi started to feel a release coming, he flipped their positions with his hands beside her head, and thrusted into Shiho. She bit down on her lip to contain the scream that was threatening to come out. Shinichi began to thrust deep inside of her, increasing speed as she tightened around him.

"More," she moaned, one of her legs wrapped around his waist. Shinichi buried his head in the crook of her neck, pressing his body firmly against hers. Shiho met him thrust to thrust, they screamed out their release together, crying out each other's name. Shinichi, still inside of her, reversed their positions and pulled Shiho up to lie on his chest.

"Maybe I should get punished by you even more." Shinichi chuckled, exhausted. Shiho snuggled closer to Shinichi, "You would like that," she said sarcastically, "let's clean up this mess and get ready to go home." Shiho said getting up to put on her clothes. Shinichi followed suit and started cleaning up their mess. About ten minutes later they finished cleaning. Before they went out the door, Shinichi put his arms around Shiho's waist and kissed her cheek, "I love you," he whispered in her ear.

"I love you too," Shiho said, laying her head on his shoulder. Shinichi opened the door but was met face-to-face with Ran and Sonoko.

"You disgust me," said Sonoko, angry at the detective that has his hands around Miyano-sensei.

"How could you, Shinichi," Ran said, tears welling up in her eyes,

Ooo. A cliffy.

Read and review. Also, review if this should stay a one-shot or if it should have an ending to it. Remember to review !