A/N: Abridged summaries:
1. Sequel to "Extra Credit" and "Nailed It"
2. AU/AH Caroline explains what she sees in Klaus.
3. AU/AH Toddler!Klaroline (and twenty years later...)

For wanderlust-in-nyc, she-walked-away, chiaraforbes, and anyone else who wanted a part three to the Klaroline student/teacher things (Extra Credit and Nailed It). This is the last one, I swear.

After making sure her graduation robe was hanging neatly in her closet, Caroline checked the note that he'd pressed into her hand after the ceremony for what felt like the hundredth time.

138 Alpine St. 6pm.
Your dress would look better with nothing under it.
Keep the heels.

She had been fidgeting around in her room since she'd gotten home from the ceremony waiting until it was time to leave. She grabbed her purse and headed to her car, starting it and driving to the address she'd been given, having looked up the directions before she'd left.

She arrived in the nicest part of town and pulled up in front of what was practically a mansion. She parked and walked up to the door, ringing the bell.

The door opened after a few seconds, revealing Klaus in a henley and jeans-more casually dressed than she'd ever seen him-and he stood aside to let her in, shutting the door firmly behind her.

"Do you want some water?"

She gave him an incredulous look, and he shrugged. "What? I'm being polite."

"No, thank you, Mr. Mikaelson."

"Klaus," he said firmly. At her raised eyebrow he smirked and moved closer, his palms settling on her waist as he leaned over to breathe his next words into her ear. "I'm only Mr. Mikaelson when you're wet for my cock and want me to fuck you until you can't walk straight."

She shivered, and she could feel him smirk against her ear, taking her earlobe between his teeth. "Do you understand, love?"

She suppressed a wicked smile. "Yes, Mr. Mikaelson."

He made a sound somewhere in between frustration and amusement, his hands immediately diving under the skirt of her dress to grip her ass. "You're out of school, but I will still punish you for being smart with me."

She laughed quietly. "Sorry, Mr. Mikaelson."

He pulled away. "Here, come sit down. We need to talk for a bit."

She frowned but followed him to a couch, sitting down next to him. "Do you wish to continue our arrangement?"

"Yes," she said immediately, not even having to think about it.

"Past the summer?"

She bit her lip. "I'm going to NYU…"

He nodded. "I'm aware. Assume for the moment that location doesn't matter."

She shot him a confused look before nodding. "Then yes, I'd like to continue past the summer."

"Good. I'd like you to let me finish what I'm about to say before you talk."

She nodded.

"I have a house in New York which is fairly close to NYU. I come from a family of very old money, and it would be no consequence to me to drive or fly up most weekends to see you. If you manage to convince your mother, I would even be willing to lend it to you, with some conditions."

She sat silently waiting to see if there was anymore, and his lips quirked when he realized it. "I'm done now, love."

"You'd seriously drive the four hours to NYU to see me all the time?"

"As I said, I have some conditions, but yes."

She frowned. They'd had their 'arrangement' for more than a year now (she'd turned 18 in October of her junior year, and had asked for "extra credit" in early March of it), and she trusted him, but she wasn't quite sure why he'd go to all the trouble.

"Why me? And what are your conditions?"

He chuckled. "Because you're intelligent and beautiful, and I enjoy you."

She snorted and he gave her a chastising look, making her wince. "Sorry."

He ignored her apology and continued. "As for the conditions, they are mostly negotiable. Before I say anything, I'd like you to promise me that you will be honest in this conversation and ask questions if you have them. I'd also like for you to understand that should you accept this arrangement, you can stop at any time, but I want you to be sure that you want it, at least initially."

"Yeah, sure."

"Good. The first condition, which is non-negotiable, is that you will not let this...arrangement interfere with your studies."

She frowned. "Yeah, of course, but can you elaborate a bit more on the said arrangement?"

He laughed quietly. "Yes."

XXX

She let herself into the house after her last Friday class, hanging up the key on the coat rack and locking up behind her, and immediately stripped, folding the clothes neatly by the door.

Unless he specified otherwise, she wasn't allowed clothes in the house when he was coming to visit. Though he probably wouldn't be there until eight at the earliest-and that was if he left directly after the school day-she liked to be prepared just in case she lost track of time.

Over the past few months she'd learned that punishments didn't necessarily have to be pleasurable.

She pulled out her Anthropology textbook and a notepad and laid stomach-down on the couch, the book propped up on the armrest, swinging her legs in the air. She was so engrossed in taking notes that she squeaked in surprise when the book and notepad were pulled out of her hands, and she sat up to see Klaus looming over her. He sat down on the couch next to her and pulled her so that she was sitting in his lap, cuddled against his chest.

"How was your week, Sweetheart?'

"Fine. Yours?"

"Boring."

She hummed in agreement.

"How long have you been home?"

"Since about three."

"How long have you been waiting?"

Translation: How long have you been naked in the house waiting for me?

"Since about three, Mr. Mikaelson."

"Good girl," he praised, one hand stroking her ass, the other creeping in between her thighs to rub her clit.

She moaned, spreading her legs to let him run a finger through her wet folds. He obliged her for a few moments before pulling back. "Kneel."

She moved off his lap to kneel between his legs, licking her dry lips as he unzipped his slacks and pulled out his cock, stroking himself a few times while she looked up at him through her lashes.

"Do you want to suck my cock?"

"Yes, please, Mr. Mikaelson."

"Ask, then."

"May I please suck your cock, Mr. Mikaelson?"

"Hmm. Tell me what you want."

"I want you to fuck my face. I want to feel you hitting the back of my throat as I suck you and make you come down my throat and swallow it all. Please let me?"

She felt her core ache. He liked it when she begged, though usually it didn't go on for long since he liked her mouth on him more.

"Ask very nicely and I might let you."

She bit her lip.

"May I please pleasure you with my mouth, Sir?"

She resisted the urge to smirk as his eyes darkened a bit more. "Palms flat on the floor and open your mouth."

"Yes, Mr. Mikaelson," she said quickly, obediently planting herself on her hands and knees and parting her lips for his cock.

"I think I like 'Sir' better," he said quietly as he let her lips wrap around him, lacing his fingers in her hair. "Suck harder. More tongue."

She obliged, her breasts swaying slightly as her head bobbed on his cock, taking it further and further into her mouth until he hit the back of her throat. "Good girl," he muttered, tugging her hair slightly, making her moan around him.

"Mouth off," he ordered, and she pulled her head back.

"Finish me with your hand. I want to see my come dripping over your nipples."

She shivered at his words, wrapping her hand around him and sitting up on her knees, watching him lean back into the couch cushions and buck into her hand as she stroked him. He groaned when he came, his come coating her breasts. "Good girl. I think you earned a reward, don't you?"

"If it pleases you, Sir."

He smirked slightly, apparently happy she'd listened, and patted his lap again. She straddled him, and he cupped her ass, pushing it up slightly so that his fingers could find their way to her pussy.

He dropped kisses and bites on her neck, using the fact that it didn't matter whether he left marks anymore to the fullest, and let her ride his fingers until her pussy clenched around them. He pulled out his fingers and she licked them clean without being asked, earning her a small smile.

He nipped her ear lightly. "Have you eaten?" he asked, quickly pulling back into an affectionate boyfriend-ish role.

"Not since five or so."

"All right. I haven't since lunch. I'll make something," he said, gently pushing her off of him.

"Thanks. I'm going to take a quick shower. I should be done by–"

"No. I want to see my come on you while we eat," he said calmly, making her face heat up. "Finish whatever homework you were doing. I don't intend for you to have anymore free time tonight."

"Ugh. You're such a teacher."

He rolled his eyes and gave her a playful swat on the ass. "Go on."

XXX

They laid on their bed, her with her nose buried in a textbook, him on his laptop, one arm slung over her shoulder as he wrote emails one-handed. After her last final she'd only have one more year to go. She finished the chapter she'd been re-reading and closed the book, dropping it with a loud thunk on the floor and leaning back into him. He followed her example, closing his laptop and setting it on the side table before pulling her to straddle him on the bed.

He cupped her face and kissed her softly, and she sighed into his mouth. His hands moved down to rest on her hips. She began to kiss his neck and he pulled her head back slightly. "Roll over, love."

"Yes Si–"

He touched her lips with his finger. "Klaus when I'm making love to you."

She felt her face heat up, but couldn't keep the smile off of her face and rolled off of him, letting him pull of his sweatpants and settle on top of her, his already hard erection pressing into her thigh.

"Klaus," she breathed as he entered her, her body shuddering with his uncharacteristically slow movements.

The next morning, he spanked her for referring to him so casually when they woke, and she enjoyed every second of it.

AU/AH. None of her friends understand what bright, happy Caroline sees in dark, dangerous Klaus. She tries to explain it to them.

"I don't get what you see in him, Care."

"That seems to be the trend," Caroline said unhappily, taking a sip of her iced tea and pushing the basket of fries towards her best friend, who picked one up and shoved it in his mouth.

"Ew. Stefan. Close your mouth when you chew."

"Sorry, Care. Look, give me one good reason."

"He chews with his mouth closed."

"That automatically makes him a keeper," Bonnie mumbled sarcastically next to Stefan before taking a bite of her salad.

Caroline let out a harsh breath. "Look, do you remember the boy advice Elena's mom gave us in the seventh grade when Matt ditched her at the dance?"

Bonnie snorted and imitated Miranda Gilbert's drawl. "Smart, cute, and funny, pick two and a half."

"He's all three," Caroline said simply, before sighing at the immediate scoff that emitted from both Stefan and Bonnie's mouths at her words. "No, seriously. He is."

"Look, Care, it's not that we don't trust your judgment–"

"That is literally exactly what it is, Bon."
"No, it's not. We're just worried about you," Bonnie insisted.

"Why?"

Stefan sighed. "He's dangerous."

"So's your brother," she pointed out, rather unkindly.

Stefan pressed his lips together. "Yeah, well, Damon's better now."

Caroline shot him a glare, and Bonnie jumped in, seeming to sense that Stefan was not helping.

"Look, we're not saying that you're making a bad decision, we're just–"

"Saying that I'm making a bad decision," Caroline finished irritably, taking a large sip of her drink.

"I was going to say concerned."

Caroline sighed, trying to figure out how to phrase her next statement. "I appreciate you guys looking out for me, I really do, but this is something that I need to explore for myself. He's been asking me out for the past year, and I've said no because you guys don't like it, and I want to try. It might end up going badly, or it might end up being the best choice that I ever made, or fall somewhere in between. I just don't want to kick myself for the rest of my life because I didn't give him a chance."

Stefan nodded slowly. "I think I get it."

Caroline sighed in relief and looked at Bonnie, who shrugged. "You know I'll support you no matter what, right?"

"Thanks."

They were quiet for a moment, each lost in their own thoughts before Stefan spoke again. "Care, can you promise me something?"

"What?"

"If you ever feel unsafe, even if it's something small, tell us as soon as you can, okay?"

Caroline snorted. "Yeah, I know."

"And don't try to fix him," Stefan added.

"I won't," Caroline said, grinning slightly.

She liked Klaus just the way he was, and she had no intention of trying to change him, especially since he wouldn't want to be changed.

Plus, she found the bad boy thing sort of sexy,

Okay, more than sort of.

Stefan excused himself to go to the restroom and Bonnie took a deep breath. "So, how was your date, then?"

"You mean dates?" Caroline asked, grinning slightly.

"More than one?"

"Four. So far."

"Okay, and?"

"I really like him, Bon."

Bonnie nodded. "Yes, I got that."

"No, like I really like him."

"Oh my god, you totally had sex with him, didn't you?" Bonnie asked excitedly, almost bouncing in her seat.

"Maybe," Caroline mumbled, fighting the blush.

"How was it?"

"Incredible," Caroline admitted.

"As you know, I'm not fond of him as a person, but if he can make you smile like that..."

"Yep," Caroline agreed, a small smirk on her face.

"Tell me!"

"Best I've ever had by far."

"Better than Tyler?"

"Tyler who?"

Stefan slid into his seat, his hands clapped over his ears. "Tell me when you're done."

Klaus Mikaelson: Spilling art supplies on childhood best friends since 1995. (For Gail)

"Caroline, put that down!" Liz ordered from the other side of the living room.

Caroline pouted but obligingly dropped the phone and sat down. "When are they coming?"

"Twenty minutes."

"No," Caroline said, grabbing a few blocks from the basket in the corner and starting to stack them.

Liz sighed. Caroline was obnoxious, precocious, and energetic, which was, in her humble opinion, one of the worst combinations of traits for four-year-olds. She had a short attention span and was very rigid about things that she wanted, and was always running around doing something.

She couldn't wait for Esther to arrive with her son Niklaus (though they all called him Nik because of the collective problem all of the children seemed to have of pronouncing 'Klaus') so that Caroline would calm down a bit. He was easy-going and quiet, a direct contrast to Caroline's excitable nature, but while Caroline threw tantrums every now and then that were more for show than anything, Nik's tantrums were worse, though he didn't have them often.

The doorbell rang and Caroline clambered to her feet, looking at her mother expectantly and following her to the door. "Esther, it's good to see you."

"Hi, Liz," Esther said tiredly, moving aside so Nik could walk into the house,

"How are you?"

"It's been one of those weeks, but I'm all right," Esther said, rubbing her very pregnant belly lightly. "This one wants out, and frankly I agree. It's a good thing that Elijah and Finn aren't a huge handful or I wouldn't know what to do. I only have to run around for Nik and Kol."

"Can I get you anything?"

Esther smiled. "No, thank you. I should go. I can't leave Mikael with Kol by himself for more than half an hour before he's hiding in his office."

"Would you like me to drop off Nik so you don't have to drive over?"

"Yes, that would great actually. Is four all right? That way I can already have picked up Elijah and Finn."

"I can do that."

Esther gave her a grateful look. "Thank you."

"Of course! I'll see you then."

Liz walked Esther out and then turned to go back to the living room to finish the report she was filing and keep an eye on Nik and Caroline.

"But it would look so much prettier if each floor was a different color," Caroline was saying as she carefully positioned a red block on the tower.

Nik just shrugged and obligingly put down the blue block he'd been about to place on the tower and picking up a red one.

They continued that way for awhile until they were out of blocks and had built a rather unstable but tall block tower.

"Mommy we're done. Come see."

"It's really great, guys!" Liz said tiredly, taking one look at it before turning back to her work.

"Can we do play-doh?" Caroline asked.

"Why don't you let Nik have a turn picking."

"But Nik likes play-doh."

"Well, that doesn't mean that he wants to play it right now. Nik, do you want to pick something to do?" Liz said kindly, determined to help Caroline learn the concept of taking turns.

"Play-doh," he said quietly, edging slightly towards the small table on the side of the room, which was usually where they played.

"See?" Caroline asked irritably in an I-told-you-so tone.

"Yes, Caroline, I see," Liz said dryly, wondering if Nik was just doing what Caroline wanted to do, but deciding not to pursue the subject.

She set them up with the different colors on the table in the corner and then returned to work, listening with half an ear to the conversation.

"What are you making?" Nik asked, his hands already separating the play-doh into neat circles.

"A puppy. What are you making?"

"I don't know yet."

They worked in silence for a few minutes before Caroline made a frustrated sound. "I can't make the legs work."

Nik glanced at her play-doh creation and smiled slightly before grabbing it.

"Hey!"

"Wait. I'll fix it," he said, pulling the tiny sticks Caroline had made into legs off the 'dog' and squishing them into smaller pillars, reattaching them carefully and handing it back. "Now it stands up."

"Thanks," Caroline said happily, setting it on the table and looking at it for a few seconds before balling it back up to make something else.

Klaus just rolled his eyes at her Caroline-ish behavior (he was used to it by now) and continued on whatever he was doing.

Caroline had made a flower, a cloud, and a butterfly by the time Klaus had finished his elephant (and Liz was rather impressed by how much it resembled one, taking in Klaus's age), and then Liz had them clean up, which Caroline did while Klaus sat there and watched. "Nik, do you want to help Caroline clean up?"

"It's okay, Mommy. Nik did mostly the blocks."

"Nik cleaned up almost all the blocks," Liz corrected automatically, before realizing that Caroline was packing in the last jar of play-doh and Nik was just sitting there, smiling slightly.

"Can we paint?" Nik asked quietly after Caroline had pounded the cap on the jar with her palm.

Liz checked the clock and was saw that they had about two and a half hours left.

"Yes. I'll get everything out."

Five minutes later, the two of them were set up with heavy paper and child-safe paint, which Nik immediately stuck his hand in and started brushing across his paper. Caroline wrinkled her nose at the paint and Liz put a box of crayons in front of her daughter, who immediately began coloring.

"All done," Caroline said about fifteen minutes later, holding up her picture.

It had two stick figures, one with blonde hair and a pink body and the other with tan hair and a green body. "This is you," she said unnecessarily pointing to Nik.

He smiled and returned to his finger painting, which was mostly just streaks of paint on a paper rather than any actual shape.

Caroline grabbed another paper and started drawing again, and a few minutes later Nik pushed away the paper he'd been painting and was about to get up from the table by the time Liz realized that he was done (and covered in paint).

"Wait, Nik. Let's get you cleaned up."

He shrugged and started walking past Caroline with a mischievous smirk on his face, and pressed his paint-covered hand against her dress.

"Hey! You got paint on my dress."

Nik just gave her an innocent smile and started backing up towards the bathroom.

"No. You can't ruin my dress. Meanie."

"I did though."

Caroline's eyes filled with tears. "I like this dress. It's pretty and you ruined it."

"It's okay, honey. It'll wash out," Liz said quickly, trying to nip the coming tantrum in the bud.

"Nik was mean," Caroline hiccuped, and Liz turned to ask Nik to apologize when he beat her to it.

"Sorry," he muttered quietly before bolting towards the bathroom.

"Whatever." Caroline mumbled.

"Can you put the crayons away, Caroline?"

She pouted but walked over to do as she was told while Liz made sure that Klaus didn't have anymore wet paint all over him.

"Can we watch something?" he asked when they returned to the living room.

"Sure. What do you want to watch?" Liz asked, heading towards the television.

"Aladdin," Caroline said decisively at the same time as Nik voted for The Lion King.

"Well, you'll have to decide."

"Aladdin is fine," Nik said, and Liz sighed exasperatedly at his immediate agreement with her daughter.

It was always interesting to watch the two interact because they often disagreed on things, but seemed to immediately realize that they disagreed and one of them would cave, though it was Caroline who more often than not got her way.

She had brought Caroline over to the Mikaelson's to play before, and Nik would argue until the cows came home with his siblings about things he wanted to do, not backing down for a second, but when Caroline wanted something, usually she got it.

She hadn't known it was possible for a child to be spoiled by another child until Caroline and Nik became friends. Honestly, she often wondered if they'd grow up to be one of those rare best friend pairs that ended up dating and getting married, but she'd shake herself and remember that the odds weren't in their favor. It was nice to think about though, especially since Esther was one of her best friends.

20 years later…

"Nik, seriously?" Caroline shouted from across the apartment, making Klaus wince from the part of their bedroom he'd turned into his studio where he'd been sketching.

His girlfriend stormed into their bedroom and gestured to the fabric of the skirt of her dress, which had a large streak of green paint on it. "You can't just leave your art stuff all over the house! It gets on things."

"The jar wasn't even open, Caroline. I don't know how you manage to–"

"Because the paintbrush had paint on it, and I was walking through the kitchen and it fell on my dress."

He shrugged, setting his sketchbook down, resigned to finishing the conversation. "I'll try not to do it again, all right?"

She rested her hands on her hips, glaring at him. "I don't know how much that will help, since you have literally spent almost your entire life spilling art supplies on me."

"Maybe I like the way it looks on you.

"Well, I don't, so stop," she snapped. "My dress is ruined."

"Sorry, love."

She huffed. "I don't want you to be sorry, I want you to stop it. This is like, the fourth time this month you've spilled paint on me."

His lips twitched. "It wasn't me, love. You walked into the paintbrush. It was just sitting there minding it's own business."

She snorted, crossing her arms over her chest, and he smirked, walking over and putting his hands on her waist, squeezing her arse lightly, making her shiver, and leaning down to nuzzle her earlobe. "I rather like spilling on you, anyway."

She snorted derisively at his innuendo, though she tipped her head to the side to let him plant light kisses down her neck. "You can't make me stop being angry with sex, Nik."

"No, but I can try."

A/N: Remember to review and tell me if you liked them :)
Hugs!
-Angie