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Shifting in her seat, Sakura considered her options.
Option number one: she left the lecture theatre. This was the one Sakura most desperately wanted to do, but it meant that every pair of eyes in this theatre would turn on her and see her flushed face and shaking legs. Plus, she would undoubtedly disappoint Professor Hatake, who kept shooting her discrete looks when he turned, gesticulating as he lectured on the fundamentals of chemistry.
Option number two: she endured it. This was the one Sakura was currently acting upon, squirming in her seat as the vibrations inside of her ebbed and flowed. When Kakashi began describing a more complex topic, she saw him reach into his pocket, and suddenly the vibrations were stronger. Sakura swore the people sat on either side of her could hear it.
Option number three: she used it. This seemed like the best option: she could take advantage of the situation and use it to drive Kakashi wild, and they could suffer together. However, Sakura wasn't certain what she could do; Kakashi was already paying lots of attention to her, and other people were bound to have noticed. How could she turn this on its head, and make this experience as torturous for Kakashi as it was for her? It wasn't Sakura's idea, after all, to have a remote-controlled vibrator inside of her during Kakashi's lecture.
With a pleased smile, Sakura decided to start basic. She began with the old pen trick, bringing the end of pen up to her mouth, and teasing it between her lips. She suppressed a surge of satisfaction as she saw Kakashi's gaze flicker to her before he resumed speaking, but was quickly punished with more intense vibrations. It was all she could do to resist moaning, biting down on her pen to hold it back.
Fuck, but she was so wet already, and Professor Hatake, with his keen nose, could probably smell it. She damned him for suggesting this idea, and for asking her to sit on the front row.
Despite her reservations, Sakura had to admit the vibrations were delicious, licking up her hips and spine. When had she gotten kinky enough to agree to this? Probably when she first met Professor Kakashi Hatake. She'd known him through a family friend, but never really interacted with him until she was in his class. That was when she suddenly saw just how handsome Kakashi was, and had begun imagining all the things he could do to her...
Abandoning those thoughts, Sakura tried to focus. She failed spectacularly as her eyes drifted toward Kakashi and his stupidly sexy low-slung jeans. With his eye-patch and that mask, it was so hard to concentrate, but Sakura curled her tongue around her pen and sucked it into her mouth, needing his heated gaze on her. To her immense pleasure, Kakashi actually stopped mid-sentence, but quickly cleared his throat and began anew.
This time when the vibrations turned up, they did not go back down.
Nipples peaking, Sakura fanned herself with her notebook, suddenly feeling unseasonably hot. The person next to her shot her a concerned look but she smiled and waved them off. After a couple of minutes of increasing heat—the vibrator inside of her just kept going, on and on, no matter how desperately she wished it would run out of battery—Sakura uncrossed her legs and removed her jacket. Her chest pushed outward as she moved, her pink locks falling down on to her shining skin, her low-cut dress showing moderately more than she would usually.
Yes, Sakura knew what a state she must have looked: mouth open, panting, a sheen of sweat all over her body, with flushed cheeks and glazed eyes. Anyone would think she had a fever, but the truth was that Professor Hatake was a sadist, and loved tormenting Sakura until she was desperate and begging for it. Despite her embarrassment and the fear of getting caught, she had to admit it had worked exactly as Kakashi had intended. If Kakashi dared to ask—with his dark voice and lidded eyes, leaning back on his desk with utter control—she would have gotten on her knees and sucked him off in front of all these people.
But that's not what he asked. "Aah, Miss Haruno," he said, his dark voice reverberating through the theatre. "Are you feeling all right? You look quite unwell."
Oh, fuck him, Sakura thought. "I-I'm fine, Professor," she said, her smile hazy. Her whole body itched. "Just—just a bit hot."
"I see," Kakashi replied. His voice was level, unaffected, but his gaze was scorching her skin. "Would you care to stay behind after the lecture? I'll give you the number to the on-campus clinic."
"Thank you, Professor," she said.
Kakashi nodded and resumed lecturing, a smirk curling at his lips.
The next two seconds were pure bliss for Sakura, who gasped as the vibrations stopped altogether then returned with a vengeance. She actually swore under her breath, hands gripping desperately at her thighs. Oh god, she thought. She was actually going to come in a lecture theatre filled with more than one hundred people. Oh god, oh god, oh—
Her body seized, legs clasping tightly together as she tried frantically to swallow her moans, eyes clamped closed. The orgasm rampaged through her body, wrecking all of her senses and launching tingles from head to toe. She recovered slowly—heaving, red and dizzy—and saw that the person next to her had moved up a seat. It was so embarrassing, but somehow the idea of being caught aroused Sakura even more. Even having just came, she wished fervently Kakashi would just fuck her now.
Apparently, Kakashi agreed. "I'm afraid I have just remembered that I have someone—aah, something very important to do," he said. "Read chapter 13 and I'll schedule another lecture to catch up." When everyone paused, looking confused, he tipped his head to one side and said, "Leave."
There were no complaints. The hall cleared quickly, apart from Sakura, who was rendered overly-sensitised and inarticulate as the vibrations continued relentlessly pulsing through her. She could barely focus on Kakashi, her vision hazed and swimming.
"I hate you," she panted, relieved she was finally able to moan as the vibrations strengthened.
Kakashi smirked. From his pocket, he removed a small, black remote, which was set one level below its highest setting. "You love me," he said. "And you love this."
Sakura licked her lips and shuffled in her seat. She was so wet that she could feel it smearing on the tops of her thighs. "Are you going to fuck me, yet?" she asked. "Or are you going to be a bastard about that, too?"
His eyes narrowed. "My office," he said. "Now."
She was forced to walk by his side, down the hall and up a flight of stairs, with the damn vibrator reigning terror inside of her. She tripped twice, at which Kakashi chuckled deeply and caught her by the elbow. By the time they were inside his office, the door locked behind them, Sakura was feeling humiliated and unbearably horny. Her hands trembled as they hooked into Kakashi's belt and pulled him close, breathing in his soothing scent. She was grateful when he pulled his mask down.
"That was awful," she breathed. Her clit was throbbing. "I came in front of everyone!"
Kakashi laughed again, looking inordinately pleased. "Mmm. And you loved it."
"What? No, I—"
Quickly, Kakashi pressed her against the wall, his hands on either side of her head. She could feel the warm puffs of his breath, the tickle of his hair as he leaned down, so close that their lips were brushing. "Say it," he said huskily. "You loved it."
Sakura was entranced. He captured her with just his words, his voice, his body pressing close up to her. When she didn't reply quick enough, he turned off the vibrator entirely, and Sakura suddenly felt weak and empty.
"Oh, god, please," she gasped roughly, struggling as Kakashi caught her wrists and trapped them against the wall to stop her touching herself. "You can't just—"
"I can do whatever I want, Miss Haruno. But if you just say the words..."
Sucking up all her pride—who had time for it, anyway?—Sakura pressed up against him and admitted defeat. "Yes, yes, I loved it, it was so hot! Now, please touch me!"
Kakashi smiled, his eyes dancing as they caught hers. "Good girl," he murmured, and flicked the vibrator back on.
The praise sent arousal shooting through Sakura like a thunderbolt, followed swiftly by the pleasure of the vibrator. She sagged against him as his free hand trailed lightly up her bare leg, lifting her dress and teasing at the edge of her thong. He ran a finger over the lace, ever so faintly tracing her clit—yet still, he didn't turn the vibrator up any stronger. He was trying to kill her, Sakura was certain.
"You're so wet." Kakashi smiled as she struggled in his hold, lowering his face into her neck. He bit her hard, making her squeak, then gently soothed it with kisses, tonguing at her pale skin. "I have to admit, I didn't expect you to come. I suppose I underestimated how desperate you are, hm?"
Fuck, she hated that Kakashi ever figured out her humiliation kink.
"I'm sorry," she breathed, knowing what was coming. She tried to press up against the hand teasing her but he pulled back every time, ensuring he drove her mad.
"Aah, I don't think you are," said Kakashi. "Maa, maa, Sakura, what is our only rule?"
"That—" Sakura gasped as he pinched on her clit, almost losing her concentration. Kakashi wouldn't like that. "That I don't come unless you say I can."
Kakashi smirked, moving to look directly into her eyes, although Sakura could barely stand to hold his gaze. "Then, what do you say?"
Her knees almost buckled beneath her. After a moment of hot silence, she whispered, "Please, spank me, sir."
With a hum, Kakashi released her hands to hold her waist, tracing the shape beneath her breasts. "Pitiful," he said. "I think you can do better than that."
Her arousal was out of control, and Kakashi knew it. She'd do anything he asked. "Spank me. Please, sir, I—I deserve it."
And Kakashi laughed. "Good girl," he said. "Over my lap."
He sat on the desk, pushing paper and files out of the way. When he pushed himself up on the desk and saw her standing there, he raised his eyebrows and patted his lap for emphasis. Sakura went to him, and was shocked when he upturned her until she lay on her stomach across his lap, dress pooling around her hips, so her backside was exposed to the cool air. It reached the hottest part of her, and made her arousal all the sweeter.
"You're going to count to ten," said Kakashi. "I am going to spank you on each number. If you miss one, you are going to restart. Am I clear?"
Sakura gulped. Tried to hold on to her thoughts. "Yes, sir."
"Then count."
"One," she said, and when his hit landed, she could feel the blood bloom on her skin. Internally, Sakura was very pleased by her lack of hesitation, but she knew Kakashi took it as an invitation to be ruthless. "Two."
The second hit was worse than the first, and the third even harder. It wasn't only strength that he employed, but positioning, aiming for her more sensitive parts and repeating in places that stung. When she reached six, her entire body was shuddering, her hands clenching at the desk so tightly that her fingers turned white. On seven, she squeezed her eyes shut, and realised her cheeks were wet with tears.
"Oh gods, please stop," she hiccupped. When Kakashi hesitated, Sakura thought she'd won. "Please, Kakashi."
The spank that hit her reverberated through her legs. Her back arched involuntarily, trying to escape.
Kakashi said, "Start again," and Sakura did.
How could something like this feel so good to Sakura? It hurt, and it hurt badly, but somehow the pain was sweet. She felt like she was high. She loved surrendering to him, taking whatever he gave her. In fact, when Sakura reached seven for the second time, Kakashi gave her a small reward by spanking her so hard the world spun, then kissing it softly, making her feel like she was floating. She almost forgot to continue, so caught-up was she, before she said, "Eight," and the next slap rung in the office.
On nine, Kakashi spanked twice, and that was unfair, but it sent Sakura into a lustful, trembling mess. When she finally reached ten, Kakashi instead plunged a finger into her, stroking her wet folds as he entered. Sakura seized up, then relaxed, needy little keens dropping from her lips. She was so caught up in the feeling of Kakashi pulling the vibrator out from her that she barely noticed when he grabbed her wrists and tied them together behind her back.
"You're being so good, Sakura," he said. He palmed at her opening, rubbing circles around her clit, and Sakura choked. "You even put on my favourite thong..."
She had, and she'd done it just for him, no matter how nervous she had felt this morning. She loved him, and she loved this, and—
"Please, fuck me," she begged. She heaved as he pushed her panties down her legs, two fingers dipping in and out of her. "Please, Kakashi!"
Sakura hoped he would let that infraction drop, and he did, pulling his fingers from her in favour of bending Sakura over the desk. She heard his pants unzip and backed into him, but was instead met by a hot tongue that licked up the length of her. Her knees threatened to buckle beneath her but Kakashi held her firm, tugging her up by the ropes that bound her, then holding her hips with almost vicious enthusiasm.
"Stay," he said, firmly, his breath fanning over her folds, before he drove right back in and nipped gently on her clit.
Kakashi was unfairly talented with his mouth. He sucked on her clit before plunging his tongue inside of her, moaning against her skin. She shivered at the sensation, mirroring his noise. Her whole body quaked enough that she was glad she had the desk beneath her to hold her up, no matter that it pressed into her stomach, the cold wood sending goosebumps up her restrained arms.
"You can come whenever you like," Kakashi whispered, and Sakura whimpered at the thought.
He kept up his slow, languid pace as he ate at her, his fingers bruising her thighs. His tongue circled her clit, dipped inside of her, then repeated, leaving wet trails behind until Sakura was a begging, desperate mess. With a laugh, he finally stood and tugged her back, so smoothly that she slid onto his entire cock in one hard motion. Instantly, she came apart, her insides tightening and then releasing in one hot, tingly sensation that made her shout his name. Kakashi had to muffle her noises with his hand, chuckling in dark satisfaction.
"Good girl," he murmured. "Now my turn."
The pace at which he fucked her was relentless. Again and again, he drove into her, fully clothed. Sakura felt so used, unable to stop herself from moaning as her bound hands bounced on her back, the silk rope chafing her skin from how tight Kakashi had tied it. She was just returning to the full-force of her desire when there was a knock at the door.
"Kakashi!" said a female voice. "I know you're in there!"
Kakashi's breath hitched. He sealed his hand over Sakura's mouth to prevent her making any noise, his hips continuing to drive forward. "Maa, Tsunade, I'm a bit busy right now," he said, and smirked as Sakura's back arched. "If this is about the mid-term test, I don't wanna hear it."
The doorknob rattled, and Tsunade huffed loudly. "You stupid brat," she said. "Fine. Meet in me in hour to discuss your abysmal marking."
Without checking to see if she'd left, Kakashi pounded back into Sakura with his previous voracity, fast and hard, as they liked it. It was when Kakashi pulled her hair and thumbed at her clit simultaneously that Sakura came again, furiously muffling her cry as Kakashi followed her not long after, groaning deeply into her ear. Together, they lowered to the floor, boneless and breathing raggedly. Her bonds must have been removed, for Kakashi pulled her into his arms until she was sitting in his lap, her legs wrapped around his waist, her head nestled in his shoulder.
He stroked her hair and soothed her until she felt like she was grounded back to earth. "You okay?" he asked after a moment, and Sakura inhaled his scent, feeling utterly calm.
"Yes," she said. Her voice was hoarse. "Thank you."
Kakashi kissed her temple, and said, "I'm going to clean you up now."
When Sakura nodded and tried to get up, she found she couldn't; instead, she grabbed onto Kakashi as he lifted her up and lay her down on the floor. He took his time in caring for her, wiping her down with the wet wipes from his drawer until no evidence of their sex remained—well, apart from the marks he'd left on her body. As he finished, he tugged her panties back up and zipped up his trousers, and Sakura finally felt more like herself. Still, she was pleased when he pulled her into another hug, their backs pressed against the wall.
It was amazing just how good Kakashi could make her feel. He never failed to make her more relaxed and carefree, separated from the worries of her real life.
"I love you," she said, ear pressed up against his heartbeat.
Kakashi gently kissed the top of her head, his arms tightening around her. "I love you too," he said. "Are we still on for dinner at your parents house tonight?"
Sakura rolled her eyes. As sexy and wonderful as Kakashi was, he could sometimes be so stupid. "Kakashi, I've been married to you for four years. You've got to stop being scared of my mother."
"Hey!" With a pout, Kakashi looked down at her with his one uncovered eye. "What kind of woman threatens to dye a dog's hair green? Poor Pakkun was traumatised."
"Actually, Naruto did that." The memory still made Sakura smile, recalling just how serious Naruto had looked when he said it. "She was the one who threatened to set Naruto on you. Either way, it was over six years ago! You've got to forget it!"
Kakashi grumbled but conceded defeat, pulling her in for their first kiss since the beginning of their tryst. It was soft and sweet, and reminded Sakura again of why she loved him so much.
"Thank you for joining me in my lecture today," he said when they separated.
Sakura giggled. "I haven't been your student in years, but somehow it took me back. Except you weren't reading porn while lecturing this time. Any reason why?"
Despite himself, Kakashi laughed too. "I had my eye on a certain pink-haired lady in the audience. She was all the porn I needed."
"Kakashi!" said Sakura, scandalised. She hit him on the arm but couldn't stop her smile. "If you ever want me to sit in on one of your lectures again, I'll do it. Just, please, don't make me orgasm next time. The girl next to me looked horrified."
"Maa, maa, Sakura, don't tell me you didn't like it?"
The worst part, Sakura thought, was that she really couldn't. Somehow—at some point—she had become just as big of a pervert as her husband. And, most damnably of all, she didn't really mind.