A/N: I seem to be into writing longer stories. I'm sure you guys don't mind xD Anyway, so my prompts used to be like 300 words and now we have this one and it's like 600. Well, who's complaining.

Since I haven't written a prompt for yurface9311 for ages I decided to move this one a bit up the line. She prompted me to do something with Caskett and prom. Well, I've never been at a prom yet (mine will be 28 April) but it sounded like fun.

I'll write the five I have left sometime this week, and then, well, I hope I'll have new prompts by then ^^

I hope you'll like this new prompt! :)

Why she had told Castle about her horrible prom, she could only imagine. Maybe the amount of tequila shots she'd thrown back had something to do with it. Yes, she was pretty sure it had.

Anyway. Alexis would be going to prom soon and Castle had her to help Alexis prepare. Beckett had kindly declined but he'd pushed on. The following evening, when they were at a bar, she'd told him her story.

It should have been perfect. She had the perfect dress and the perfect date. She'd been looking forward to it so much.

When she put on her dress, a seam ripped. It took her mother ages to sew it back together. But that was fine. Her date was late anyway.

When they finally arrived, she immediately lost him out of her sight. However, her friends were till there, so she hung out with them.

The next time she saw her date (and her best friend, too, she hadn't been standing with Beckett's group of friends) they were making out furiously in the hall. She'd pretended not to care but she died a little inside and vowed she would never let anyone hurt her like that again.

Castle'd looked at her when she was finished with her story. She knew that look. He wanted to make it better.

'Don't even think about it, Castle,' she'd warned him. He'd ignored that. Of course he had.

Two weeks later, on the day of Alexis' prom, Beckett'd found a package in front of her door. There was a card on it. It said, in Castle's handwriting: 'An extraordinary night for the extraordinary KB.'

The package contained a prom dress.

Now, she could claim that she didn't love the dress. That she hadn't been looking forward to whatever Castle had planned. But that would've been lying.

She'd worn the dress. Castle had picked her up at 9 pm. He'd been speechless when he saw her. She'd loved that, of course. It didn't happen often that the writer couldn't say anything.

'Let's go?' she'd asked. He had offered her his arm and together they'd walked to his car.

'Where are we going?'

'Alexis' high school.' He'd leaned back with a mischievous glint in his eyes.

'Why?'

'Because we're going to crash that prom.'

Beckett's mouth had fallen open.

'You're mad, Castle.'

'About you, yeah.'

She'd blushed and looked out of the window.

This prom was infinitely better than her first one. She had fun, bickered with Castle, felt naughty, in short, she was exactly who she loved to be.

'I always knew there was a Nikki Heat in you,' Castle'd murmured in her ear, and then he'd pressed his lips to her temple. She couldn't help it. She'd smiled.

'And how many girls have you told that already?' she'd teased.

'Only one, actually.'

He'd sounded so sincere. She hadn't been able to stop herself, but tugged on his jacket until he turned his head to her and she kissed him.

That was what had led to her current situation. She was in Castle's bedroom, the writer struggling with the zipper on the back of her dress. When he managed to open it all the way, she let the dress slide off of her and undressed Castle.

They kissed feverishly, hands trailing over hot skin, bodies pressing together, neither going to stop anytime soon.

That was their first night together. And many more would follow.