A/N: Hey everyone... sorry it's taken me forever to update, but I was busy with holiday stuff, then I was sick, and then I was running low on ideas. But here's the new chapter, at long last. This is in response to klingy12's request that they have an encounter at school. Enjoy!

Chapter 10

Blair was seated on a bench in the courtyard, flipping through her French notes. She had a test next period, and she absolutely had to do well. She had even given up sex with Chuck last night to study! Needless to say, he had not been pleased. But she would find away to make it up to him - she always did.

"Hey," a familiar voice said, and Blair looked up to see Nate plop down on the bench beside her.

"Hey," she replied, somewhat surprised to see him. She was on good terms with Nate now, but they hadn't spent much time together lately.

"Studying for French?" he asked, glancing down at her notes.

"Yeah."

"D'you think you could help me review? I really need to do well."

Blair debated for a moment, wondering whether she could spare the time. But then again, wasn't teaching someone else supposed to be the best way to study? "Yeah, of course," she agreed.

"Thank you so much!" Nate said, smiling. "I really appreciate it."

They started going through words, but pretty soon Blair was giggling uncontrollably as she listened to Nate butcher the French language with his miserable attempt at an accent and poor pronunciation.

"Oh, shut up," he said grumpily, but he couldn't help but laugh too.

"You shut up! I'm the one trying to help you!" Blair laughed, slapping him playfully on the arm just as he took a sip of water. The water bottle tipped in his hand and some of it spilled on to his pants. Blair gasped, then started to giggle again. "Oh my God, I'm so sorry!"

"Don't worry about it," Nate said, trying to wipe off some of the water. Blair pulled out a handkerchief and started dabbing at his leg before she realized how close her hand was to his crotch. She looked up at him and blushed as he cleared his throat. "I've got it," he said, taking the handkerchief from her.

"Okay. I'm really sorry," she repeated.

"Seriously, it's fine," he assured her. "I'm gonna go try to dry this off in the bathroom," he continued, standing up. "Thanks so much for helping me."

"Any time," she said. He bent down, kissed her on the cheek, and then hurried off to the bathroom. Blair smiled to herself at the memory of their odd encounter and then resumed her furious studying.

xoxo

Chuck had watched the entire exchange between Blair and Nate from his favorite hidden corner of the courtyard. He had been on the phone with Eric when he saw Nate walk over and sit next to Blair. He thought nothing of it until he saw her practically patting down his crotch with a handkerchief. And then Nate had kissed her on the cheek before he left. Chuck couldn't believe that he was actually jealous, but Blair's relationship with Nate had always been a sensitive issue for him. She had already left him for Nate once, and he definitely didn't want that to happen again.

He slammed his phone shut with unncessary force and strode over to Blair, taking the seat on the bench that Nate had just vacated.

"Hi," she said, looking up at him with a smile.

He grunted in response, debating whether he wanted to say something to her. Chuck Bass was not the type to act like a jealous boyfriend, but he couldn't help it. When it came to Blair, he did a lot of things that were completely out of character. Such as falling in love.

"What's wrong?" she asked in concern.

"Nothing," Chuck said sulkily.

"Bullshit. Why are you mad?" She never took crap from him. It was one of the many things he loved about her.

"You seemed pretty friendly with dear Nathaniel a few minutes ago," he spat out, hating himself for sounding so pathetic.

Blair was shocked. "I was helping him study for French," she said.

"Really? Because it looked like you were groping him," he growled, even though he knew he was exaggerating.

"I spilled water on his pants and I was helping him dry it off!" Blair cried indignantly.

"Whatever," Chuck mumbled.

"I can't believe you honestly think I would go back to Nate! After everything we've been through!" she looked genuinely hurt, and Chuck felt a twinge of guilt, but for some reason he couldn't stop himself from responding angrily.

"It wouldn't be the first time," he said, knowing he was crossing a line.

"You are unbelievable," Blair hissed. "Thanks so much for trusting me." She slammed her notebook shut, stuffed it in her bag, and stalked off, practically shaking with fury. Chuck was left to contemplate why he had allowed his jealousy of Nate to provoke him into acting like such a complete douchebag.

xoxo

Two periods later, after having successfully taken her French test, Blair's anger had cooled considerably. She was still insulted that Chuck would actually accuse her of wanting Nate again, but she also knew that Chuck was secretly very threatened by Nate. He didn't have to be such an ass about it, but she knew he had only acted the way he did because he was jealous and afraid of losing her again.

She felt her phone vibrate against her thigh and slid it out from under her skirt, opening it under her desk. It was a text from Chuck. "I'm sorry. Just more jealous than I thought. -C"

Blair sighed and smiled to herself, relieved that he had apologized. Now she wouldn't have to go through the process of acting angry and avoiding him until they made up. Although their make up sex was always amazing... She was getting hot just thinking about it. Honestly, with sex like that, how could Chuck believe that she would ever want anyone but him? Still, it was kind of sweet that he was so insecure about it. Chuck Bass did not have insecurities - at least he liked to pretend he didn't. Blair loved that she was the only person who really knew his weaknesses.

She didn't want him to be jealous of Nate though. She wanted him to know that she didn't want anyone but him. She would prove it to him tonight. But fuck, she was horny right now. An idea suddenly occurred to her. No, she couldn't - could she? She didn't know if she was brave enough. But English was just so painfully boring, and she already knew everything about the passage they were discussing. She could just pretend she needed to use the restroom, her teacher wouldn't notice if she was gone for an abnormally long time... Blair couldn't believe that she was actually considering this. But there was something so thrilling about doing something so forbidden, and she was feeling a little adventurous today. Chuck was in for a treat.

xoxo

Meanwhile, Chuck was sitting in Calculus, not paying attention and instead waiting anxiously for Blair to return his text. He knew he probably should have apologized in person, but he couldn't wait. He hoped she would forgive him.

"Excuse me, Mr. Smith?" Chuck's head snapped up at the sound of Blair's voice. She was standing in the doorway of the classroom, smiling sweetly at their pervert of a professor. With a jolt of anger, Chuck saw that Mr. Smith was eyeing Blair's body greedily.

"Yes, Miss Waldorf?" Smith said, eyes lingering on her chest. Chuck felt an overwhelming desire to jam his pen into Smith's eyeball.

"Could I borrow Chuck for a few minutes? It's urgent." She continued to smile even as she watched his eyes raking over her body. Mr. Smith was always creepy like that with his female students - she had just gotten used to it.

"Of course," Smith said, a hint of disappointment in his voice.

Chuck stood up, feeling very confused but also pleased that Blair had gotten him out of Calculus. He shot her a questioning glance, but she just turned and walked into the hallway. He wondered whether she was going to yell at him.

"What's up?" he asked once he had joined her in the hall.

"Follow me," she said. She grabbed his hand and led him upstairs and into the senior lounge, which was empty. She locked the door and then turned to face him. "I got your text."

He tried to gauge her expression. She didn't look mad, but it was always hard to tell with Blair. "And?"

"Thanks for apologizing."

He sighed with relief. "I really am sorry," he said.

"I know. And I'm sorry for making you feel threatened." She stepped towards him and took his hand in hers. "But honestly Chuck, how could you ever think I would go back to Nate?"

"Because he was all you wanted not too long ago," he said softly.

"He was all I wanted until you happened. And then you became all I wanted," she corrected him, stroking the back of his hand with her thumb. "Nate's nothing compared to you. He never understood me like you do. He never looked at me like you do. He never fucked me like you do. And he never loved me like you do." She leaned her forehead against his, and then planted a soft kiss on his lips. "I love you, not Nate."

"I love you too," Chuck whispered, pulling her closer to him. She was his, and only his.

Blair reached up and unbuttoned the top button of his shirt, kissing the exposed skin at the base of his throat. Chuck pulled back in surprise. "You're not serious," he said. There was no way Blair was going to fuck him while they were in school.

She raised an eyebrow suggestively. "Nate never would have fucked me in school," she murmured.

"That's because Nate could never fuck you like I do," Chuck growled.

"Exactly." She unbuttoned the next button and kissed the newly bared skin beneath it. "Only you can get me wet without even touching me." She moved to the next button. "Only you can make scream your name over and over again." Next button. "Only you can make me beg for more." Next button. Chuck could feel his erection pressing against his pants. "Only you know exactly where to touch me without me having to tell you." Next button. "Only you can fill me completely with your huge dick." Last button. "Only you can give me an orgasm that leaves me breathless and shaking every. Single. Time."

Chuck tilted his head back and groaned as she kissed the skin just above the waistband of his pants. She stood up and tugged his shirt off, then reached down to undo his pants. Slipping a hand down into his boxers, she freed his throbbing cock and began to massage the head. Then she slowly began to stroke his shaft, gradually picking up the pace as he leaned his head against her shoulder and grunted.

As she continued to stroke him expertly, he suddenly reached up and tugged her shirt out of her skirt, pulling it over her head. He left a trail of hot kisses on her collarbone and neck before reaching around to unhook her bra. She briefly let go of him so he could slide off her bra, then resumed her stroking as he cupped his hands over her breasts. He circled his thumb around her nipples, and a moan escaped her throat. Tilting her back slightly, he arched her back to grant his mouth easier access to her breasts. His lips closed around one of her breasts as his thumb continued the circling motion on the other. He sucked her breast and flicked his tongue at her pert nipple, enjoying the sound of her moans.

"See, this is what I mean," she choked out as her little hand worked him faster and faster. "You're making me wet without even fingering me." She felt him smile against her breast.

"And you're gonna make me come any second now," he groaned, and his hot breath tickled her skin.

She slid down to her knees and closed her warm mouth around his tip. He placed his hands on the door behind her, bracing himself. "Fuck, Blair..." he gasped. "I'm so close, baby, fuck..." Her tongue glided over him as she took him deeper into her mouth, stroking his balls with her soft fingers. "Fuck," he said one last time, and then he exploded into her waiting mouth. She swallowed it all, and then kissed her way back up his chest until she was standing. He leaned against her, breathing heavily.

"You are incredible," he breathed. Blair Waldorf had just blown him in school. He was the luckiest fucking guy in the world.

"And you," she replied as she tucked him back into his boxers and zipped his pants back up, "make me hornier than Nate ever could have."

"I can fuck you better than he could, too," Chuck growled. "And I'm going to prove it to you tonight."

"You've already proved that to me many, many times," Blair said with a smile, kissing him. "But I'm looking forward to it."