This is a two-chapter story that I wrote for manny-arr, my Secret Stana :)
It's my first fan fiction ever, so I am not sure it is going to be good... but I did it with my heart! Hope you like it! :)
English is not my first language, so I'm sorry for the limitations and mistakes!
- Nina (swan-queener)

After a particularly busy Friday at the 12th precinct, Castle and Beckett arrived home to an eerie empty loft. They had been together only for a few months; she was spending more time at his place than at her own and this intimacy resulted in them having set their own routine. But as soon as they went to their bedroom to have a shower to celebrate that Kate wasn't on call that weekend, Alexis stormed into the room, her delicate face red with excitement.

"Oh my god dad, you won't believe this!"

Alexis threw herself at his arms and wrapped her arms on his neck, Castle was caught on surprise; he had no idea what was going on.

"Oh dad I am sooooo happy! Please say yes!"

"Yes to what?" He swiftly removed himself from her embrace and looked to his daughter with apprehension, his writer mind already thinking about the billions of possibilities of what Alexis would ask him that would make her feel the need to sugarcoat him this way. She noticed his hesitation and threw him a puppy look, undecided whether she should worry that he wouldn't say yes to her question or if he was actually ok and not ready to pass out. But her silence actually made things more awkward.

"Oh God, don't tell me you're pregnant..."

"I've got front row tickets to Lady Gaga's concert tomorrow night... would you come with me?" Alexis blurted out almost concomitantly with his question.

Castle was so numbed by the prospect of his young adult daughter (still a child in his eyes) being pregnant that he couldn't even process her question.

"I've got tickets for you, me, and Kate of course... by the way, hi Kate" said Alexis, only now acknowledging Kate's presence in the room.

"Hey" Kate did her best poker face to not give away how much she didn't want to go to that concert. In the early days, she even felt sympathy for Lady Gaga, but as she rose to stardom Kate totally lost the interest for her work or anything related to her.

"So, what do you say?"

"Well"... Castle looked to Kate, who had a half-hearted smile by now. He sensed she wasn't up for it, but how he could say no to Alexis? "Yeah, sure honey, we would love to!"

She hugged him; he looked back at his girlfriend, who was now in the full mode "mad Kate". Uh-oh.

"So, you have to be by 8 am at the Madison Square Garden, near the gate 13, for floor entrance, right?"

"What... wait, 8 am?"

"There's a line, you know..."

Castle sighed, Kate had her arms crossed by now, not wanting to say anything to interfere in their conversation but hoping that he would somehow talk Alexis out of that idea.

"And I really want to see her up and close, maybe even go on stage! Oh, I would give anything to have her pick me up from the crowd to sing with her onstage! I am even working on a very awesome costume!"

"Ahmmm... costume?" now Kate's eyes are wide with fear, she wasn't liking the way the conversation was headed.

"Yeah, it would be cool if you actually dressed up as well, you know, Lady Gaga's little monsters... Oh, by the way, I gotta go, here are your tickets, be there at Madison Square Garden by 8 am. EIGHT, ok?"

Alexis put two small tickets in her father's hands, quickly kissed him goodbye, leaving happily and bouncy.

"Castle, what the hell? Going to a Lady Gaga's concert?"

"Oh, c'mon, it will be fun!"

She just roll her eyes, it was pointless to argue against it. "Ok, but I am not wearing any monster costume or whatever".

Next morning, 8 am sharp, Castle and Beckett arrived at the meeting point proposed by Alexis. It was a cold, grey morning, that usually asked for a sleep-in and breakfast in bed, but there were already thousands of people standing in front of the concert venue. Alexis was one of the first people on the line, she was standing by a tent; it was obvious now that she had spent the night on the line, trying to guarantee the best spot near the stage.

"Hey dad!"

"Did you spend the night here?" he was a bit concerned, and a bit astounded that the previous night she had omitted the part where she would be sleeping on a tent on the street.

"Actually, yes" she answers, blushing. "But dad, hey, the first here get a chance to be in the Monster Pit... by the way, where are your costumes?"

"I'm sorry, but Kate and I talked and... it is a no"

As he said that, some guy from the concert production stopped right beside them. Alexis put her best smile on her face on the hopes the producer chose her to be able to stay at the monster pit. To be chosen for the monster pit, a person had to be either one of the first on the line or be dressed in an outstanding costume. As he was putting the bracelet on Alexis, Castle spoke.

"Hey, do we get one of those? I'd like to stay with my daughter"

The guy looked to Kate from up to down and then to Castle, a hint of recognition then was on his face.

"Are you Richard Castle? The writer?"

"Yeah, that I am."

"Your books are awesome! I am such a fan! Here, the monster pit bracelets" Chase puts the orange and black bracelets on Castle and Beckett's wrists. "Hope you enjoy the concert!".

"Yeah, sure... thanks." Castle was doing this for Alexis. Only. Not that he didn't know the lyrics for half of her songs, but still, only for Alexis.

That said, Chase moves to the next of the line.

"Dad, Kate, you can go now. The gates won't open until 4 pm, so you have time to do... whatever you want."

"Wait, so why were we here at... 8 am? God Alexis..." He hated waking up early in the weekend, especially when Kate was off duty... and he was certain that Kate could have used the rest (especially after a very active Friday night). But, again, this was his daughter.

"Well, 8 am was the time they would choose the fans who will be at the monster pit! And we are in! Yay!"

Alexis hugs again her father, and before she changed her mind, Castle and Beckett decide to leave only to return later. When they were walking in the sideway, they start paying attention to the fans that were there. The majority of them were using custom made costumes, some very creative, some creepy, but no matter what, it was amusing to see all those people expressing love, united because of one artist.

"You know what, Castle? I think I am going to dress up for tonight..." Smirk from Kate, a grin from Castle... this was going to be fun.

"If you are, so am I."

"3:30, meet at the line?"

"Yeah..."

They parted ways, each one going to their home to prepare for the concert that night.