"It's raining!" Saeyoung called, banging his fists against his brother's room's door, "Saeran, come on! It's raining!"

Saeran opened the door and saw his twin jumping up and down in his red plastic raincoat, his one year old niece waddling in a matching raincoat.

Saeran's niece turned to his and grinned wide, "Rain! Rain!"

Saeran sighed, smiling weakly, "Yesterday it was lava, now it's rain, what's up with you?"

Saeyoung shrugged, "Nothing, nothing. Now come on, Ji Seo's waiting."

Saeran went back inside to look for his raincoat then went back outside after a few minutes wearing a clear one.

"Where are they?" Saeran asked you who was preparing four mugs of hot chocolate

"They went outside," you answered, "Go on, play with them. Saeyoung will be really glad."

"What's up with him? Is he told that he has a few days left to live?" Saeran asked

You turned around, smiling at your husband's twin, "Well it's your birthday soon and Saeyoung really wanted to make it special this year."

"It took you one and a half year to fully accept your brother and this is the first birthday that you'll actually be celebrating," you explained, "Saeyoung told me about how you couldn't properly celebrate birthdays when you were kids so he planned a full week of celebration to make up for it."

"He… doesn't really have to do that," Saeran said, "I mean, I would really appreciate even if it's just a cake or ice cream or something."

You sighed happily, "You know Saeyoung. He's pretty extra."

"Well I gotta go there now," Saeran stated

"Yeah, watch them for me for a bit, okay?" You responded and he made his way to the door, "Oh, and, Saeran?"

The red head turned to look at you then you continued, "Try to have fun."

Saeran opened the door and watched as Ji Seo slipped, falling on her butt. The one year old looked up to her father then her eyes started to water and her face signalled that she was about to cry.

Saeran ran to his niece then fell like how Ji Seo did in front of her. Her tears subsided and smiles and laughter took place. She laughed happily at her uncle's misfortune until Saeran pulled her up to her feet.

"Are you hurt, Ji Seo?" He asked, checking her knees for injuries, "Where's papa?"

"Ji Seo! I'm back!" Saeyoung called from the side of the house

Saeran glared at his brother, "You left her here."

Saeyoung went over to his daughter, "She slipped didn't she?"

"Well duh!"

Saeyoung frowned then hugged his one year old, "There something wrong, baby? Tell papa."

"Papa, balloon," Ji Seo spoke weakly then giggled, "Play play!"

"Alright, water balloon fight it is then," Saeran declared, pulling the empty balloons from his twin's hand, "And I get Ji Seo."

Saeyoung hugged his child tightly, "No fair! Get your own kid."

Saeran chuckled, "Brother, you would like it that she's with me. Now come on, let's fill this up and give me my niece."

•••

"Fire!" Saeran grabbed the water balloons with one hand, throwing it with full force at his brother while his other hand held his niece who was sitting on his shoulders

Ji Seo imitated his uncle's words which only came out as "far" matched with a lot of laughter and giggles from the child. Saeyoung desperately covered his body from all the attacks but failing, only making himself even more soaked with water.

"No fair, you knew I wouldn't throw when Ji Seo's with you!" Saeyoung said through laughter, "Bring Ji Seo to the side and we'll play this like real men!"

"Hah! No way," Saeran retorted as he continued throwing, "Ji Seo and I are winning this together. Isn't that right, baby girl?"

Saeran looked up and regretted doing so when he left a water balloon collide with his face.

"I wasn't looking! That isn't fair!" Saeran called

The front door opened then you saw the water balloon war in the midst of all the rain going on.

"Guys, come on in! The rain's to heavy!" You called, stopping the fight, "And I have hot chocolate!"

"Choco!" Ji Seo cheered, pulling at his uncle's red hair

"Ow. Yeah, yeah, Ji Seo, we're going in," Saeran stated before entering the house

You stayed behind and opened the door for the duo to enter then turned to your husband, "Feeling good?"

"My child and my brother are teaming up against me," he stated, "Of course I feel good! Do you remember the time when you and Saeran pranked me that you were pregnant? It felt great and now he's bonding with actual family. I feel awesome!"

"Perfect! Really glad that your plan's going well Saeyoung," you replied, "Now let's go inside. It's getting quite cold out here."

Saeyoung nodded then rushed over to you, "There's one tiny problem though."

"And that is?" You raised a brow

"Saeran always wants to spend time with Ji Seo that I can't even so much as hold her when she slipped," Saeyoung spoke, "Can we maybe have another baby so I could have one on my team?"

You stared at him for a moment before closing the door in his face.

"I'm kidding babe, kidding!" Saeyoung laughed from outside

You opened the door to let him in.

"Or am I?"

The door was slammed shut in his face again.