We get to see most of this chapter from Jim's POV and I hope it came out okay. I had to write the last half with my brother constantly bugging me to "watch this" or "look at this" so I'm afraid it might seem sort of disjointed but maybe its my imagination. I don't exactly have a clear idea for the next chapter so I'm open for ideas of things you want to see happen.

No, I do NOT own Castle.

"Yes! Now put me down!"

Being too busy trying to get him to put her down, she didn't notice that he started walking towards the pool's edge.

"Well… Alright, if you insist."

As soon as he agreed to it so easily, she knew he was up to something. Unfortunately, she only realized what was about to happen a split second before he leaned forward and she felt his arms remove themselves from around her. So, she did the only thing she could think of at the time. She held on for dear life. Her legs swung down until her toes grazed the water and her arms attached, rather forcibly, to his neck.

Completely not expecting that, Castle let out a strangled sound and tried to pry her arms off of him, which was something he never thought he would be doing but, she was crushing his windpipe. During his struggle to regain the ability to breathe, the laws of gravity kicked in just as he leaned a little too far over the pool.

A surprised squeak coming from his right had Jim Beckett rising up and opening his eyes to see what was going on. He looked over just in time to see a man wearing a pair of red and white Hawaiian print swim trunks lifting his daughter from her chair.

His first instinct was to stop the man and ask him just what the hell he was doing with his daughter but, when the man said something about 'his' pool and Kate crossed her arms and glared at him, he figured that they knew each other and his fatherly over protectiveness wasn't needed right now.

"Put me down, Castle!"

Kate yelled at the man and a light when on in Jim's head. This must be that writer that she is always complaining about, he thought. Truth be told, he had always wanted to meet this man, especially since every time he had talked to Katie in the last year, she would always talk about Castle this and Castle that. It was usually about the annoying things he did but, Jim knew that if he really annoyed her that much, she would have found a way to get rid of him by now. Kate always got what she wanted, one way or another, ever since she was a little girl.

"Are you sure that's what you want? Sure you don't want to spend more time in my manly, muscular arms?"

Jim could have sworn he saw a small blush appear on her cheeks, but that could have just been out of anger. Castle started taking small steps towards the pool and Jim wondered if Kate had realized it yet but, seeing as she was too busy yelling at him, he doubted she did.

From his position behind, and a little to the left, of them, Jim got a perfect view of the spark of realization that came over Kate's face as she finally realized what Castle was about to do. In hindsight, he really should have helped her, he could have prevented the whole thing but really, where was the fun in that? Plus, it had been years since she had been thrown into a pool, it was about time it happened again. When Kate was younger, and he was too, they had a public pool right near their house and it was his and Kate's little game for him to chase her around the pool then throw her in. But after Johanna passed, he didn't bother going to the pool anymore and by the time Kate forced him to care about the world again, he was too old for that stuff. So, now he would sit back and watch as someone else did it for him.

Jim was fully expecting Kate to get dumped into the water, then come back out of the pool and possibly attempt to murder this Castle person. Apparently that's not how the fates planned it though, as Kate grabbed on to Castle and pulled him into the pool with her, creating a big splash that managed to get his feet wet, and he was a good three feet away. He was watching the surface of the water so intently, to see what would happen when they both came up for air, that he didn't notice two women approaching him until one started talking.

"Please excuse my dad, he is such a child and he couldn't resist the opportunity to get back at Detective Beckett. Though, looks like his plan backfired a little bit."

Jim looked to his left to see a teen girl with long red hair, wearing a modest white and purple star print tankini, who was looking at the pool thoughtfully then turned back to him with her hand outstretched. "My name is Alexis Castle and you're Kate's dad, right?"

Jim stood up and shook the girls hand with a smile. He has a daughter? "Yes, my name is Jim Beckett but, you can just call me Jim."

Any further conversation was cut off as Castle and Beckett surfaced and Beckett started yelling incomprehensible things at Castle who was trying to calm her down. Alexis grinned while walking over to the edge of the pool and handing Beckett the foam floating board thing that she was carrying.

Kate accepted the board gratefully with an evil grin that gave even Jim the cold chills. She raised it over her head and Castle started backing away as fast as he could while yelling at Alexis.

"Alexis! How could you! You're supposed to be on my team!"

"Sorry dad, you kind of deserved it."

Jim became aware of the other woman who had approached with Alexis as she walked around him and sat in what was Kate's chair, turning to address him.

"Hello there, I apologize for my son. He really doesn't mean any harm. Martha Rodgers, Richard's mother."

Jim turned and shook her hand and replied. "Jim Beckett, Kate's father. Um, are they always like this?"

Martha gestured towards the pool with a dramatic flourish of her hand. "Richard doing something incredibly stupid and Detective Beckett getting annoyed and getting back at him one way or another? Yes."

Jim and Martha made pleasant small talk while they enjoyed the cool breeze and watched Castle and Beckett try to best each other in the water. With Alexis as the referee, they were seeing who could race the fastest, not that it was a fair race though as they kept trying to pull each other under to get ahead.

After a few more races, no one was sure who the winner was, Castle went over to the other side of the pool and made a big show of jumping off the diving board while Kate and Alexis moved safely away from him and ended up back near Jim and Martha.

Kate was floating in the water with her back turned towards Jim and he couldn't resist the opportunity. He carefully got out of his chair, trying not to draw her attention, then snuck up to the edge of the pool.

"Cannonball!" Was the only warning the two girls got before he jumped into the pool next to them, knocking them over with the force of the waves.

"Dad! Geez, you are just as bad as Castle!"

"Someone say my name?" Castle swam over to them, and Kate couldn't help but respond. "I thought you were busy showing us your lack of diving skills?"

"Oh har har, very funny. You guys just wanted to have fun without me didn't you?"

So I'm thinking 1 or 2 more chapters after this, depending on how many ideas you guys give me lol. Its hoooooooooot~ I wanna go swimming...