And as said, Gabriel left with a satisfied smirk played on his face. Kayla kept on holding onto her daughter letting out stray tears to fall while pressing her lips against her daughters head. Ava was holding onto her mother wanting to cry but...she was so strong that... not even a tear slipped. "I missed you mummy" Ava cutely said. Kayla let out a soft chuckle "I missed you too sweetie... so much" 
"Hey sweet treasure, How about we..." Cas interrupted the scene but froze.. "Ava?" he choked. 
"Daddy!!" the girl now officially cried out running up to him. Castiel said no other words.. he ran up to her and caught her in his arms... engulfing her in a tight embrace and kissing her head all over, letting his tears fall. "Oh my baby girl!!!" he sobbed out. Ava tightened her hold in response crying into his chest. "I'm sorry daddy. I didn't mean to leave you and mummy"
"No!! no it's alright baby girl! But you're back!! You're back! That's all that matters" Castiel said not letting go of her. He looked up at Kayla and reached out to her with one available arm. Kayla smiled a teary one before she was in the group hug now. She was finally complete. 

"This is gonna be a huge surprise for everyone" Kayla said through a smirk still with tears brimming her eyes. Cas chuckled and nodded "how are we gonna do this?" he asked with a soft smirk just the same as his wife. 
"Hm... we keep Ava in our room. Then whoever arrives, we tell them if they can fetch us something from our room and they can find her there. Then we can see their reaction from behind the door. 
"Love it! Ava, are you in?"
"I'm ready!!" She exclaimed through a grin. 

The door opened up. Kayla's eyes widened with a smirk "gogogo!" She whisper yelled to rush Ava into her room. 
"Kitty! do we have any pie?! I think we need to buy some!" Dean chimed from behind the door entrance.
"Uh! no, we have pie! but.. how about we still go buy some... the wallets in my room, can you get it for me, then we'll be on our way" she said acting like she's doing something in the kitchen. Castiel rushed back in with a mission accomplished smirk.
"why don't we use mine?" Deans voice boomed.
"my treat!! Come on!! go get my wallet!!" Kayla said with an eye roll before giving a look towards Castiel which he chuckled softly at it. Dean was heard sighing before his footsteps walked towards her room. Kayla and Cas ran upwards to reach their room to see the reaction. 

Dean walked into Kayla's and Castiel's room. "Kitty!!!! where is your wallet?!?!" he shouted with volume. 
"Under the make up cabinet" she replied before she arrived along with her husband behind her door.
"Hello uncle Dean!!" Ava said naturally sitting on the bed with her legs swinging in and out. 
"Oh hey aves!" he said plainly before he continued to look for his sisters wallet. He froze and turned... "ava?" he asked through a shocked and confused look. The girl grinned a toothy grin along with a chuckle. 
"D...Do... Does your mother and Cas..."
"Uh huh!!" 
"And you're not a.."
"Nope!!!" 
"So you're really?"
"Yep!!" 
Dean actually teared up before he ran up to her and lifted her up in a hug. He treated her like his own daughter.  Kayla didn't expected this...She was actually waiting for more of a funnier reaction. She just covered her mouth and teared up. Ava was also shocked... she buried her face in her uncles neck and just stayed there smiling. A few sobs escaped from Deans lips. Kayla was literally awe struck. Castiel was also shocked about this. "wow" he softly said through a chuckle. "Did you see that sweet treasure?" he whispered before pressing a kiss on her head. She nodded before she got up and went up to her brother and daughter. 
"I don't know how she got back but.. she's back.. it's all her" she spoken ever so softly tears brimming in her eyes. Dean's head bolted up and seen his sister in front of him. He gently pulled her in his arm still including his niece not wanting to let any of them go. Kayla let out a soft chuckle before she looked over at Cas and gestured him to come over.
Castiel... with no words, walked up to them and just enveloped everyone in a hug. 
"Hey! What's all the group hug about?" Sam's voice interrupted the moment. Ava gasped "Uncle sammy?!?!" she exclaimed. Sams face turned shocked "Ava?" she ran up to him and jump hugged him. "holy sh... Oh f... wh..." he stammered tears brimming Sams eyes holding his niece ever so close. "It's me uncle Sammy!" Ava cooed nuzzling her face against his neck. Sam tightened his hold ever so close. 
"Does anyone love me because they love me or because I make them?!" Dean asked with a pout. 
"what do you mean, puppy?" Kayla cooed rubbing his arm.
"I had to go towards her to hug her, but she jump hugged Sam" Dean said with a pout sounding like a jealous 5 year old. Kayla giggled and kissed his cheek "trust me puppy. she loves you more than anything. She just wants to be cool in front of her uncle Dean. So she doesn't do anything like that in front of you" she reassured. Dean smirked satisfied kissing his sisters head. "Thanks kitty." 

Dean faced the 2 still hugging each other. Sam and Ava hadn't let go. Ava automatically pulled away but her hands were still on Sams chest. "I missed you uncle Sammy" 
"I missed you too Ava" he said kissing her head before he let go of her. "so.. what do you wanna do?"
"Prank my brothers!" she grinned. Kayla and Dean burst out laughing together along with Cas. "Yep!! That's my girl!!" Kayla exclaimed through her laughter. Sam chuckled before he shook his head "Uncle Dean really effected you. No pranks... for now" he smirked. Kayla and Dean's eyebrows raised themselves. "Oh really? Not now huh?" Kayla asked.
"I still have something under my sleeve, bunny." He joked. Kayla grinned before she nodded. "Alright... How about when everyone comes.. we'll have a prank war?"
"Alright! I'm up for it! who are the teams?" Sam asked 
"Me, Dean, Cas, Gabriel and dad versus you, Jack, Ava, Rosie, Nathan and John, How about that?" Sam raised an eyebrow 
"did you just place me with children and put me against my boyfriend?" he asked with a small frown. 
"Yep! but the kids are mischievous and you have an extra member, so... your choice.." Kayla smirked. Sams face turned into a challenging one "alright then. I'll take that! what happens to whoever wins or lose?" 
"If we win, we will get free burgers and pie from your team for a month"
"6!" Dean exclaims. Kayla turned with a raised eyebrow and a smirk "6 months" Kayla corrected. Sam rolled his eyes. "alright!! fine!! but if our team wins.. we get to go to DisneyLand" 
"Sam, we don't have that kind of money." Kayla stated with a bit of a pout. "we can do anything! just not that involves a lot of money" Sam sighed "alright! If we win" he stopped to think before a very sly and cunning idea came into his mind and said "I'll get to drive the impala for 6 months"
"WHAT!?!?!! NO!! THAT'S CRAZY!!! KITTY!!!! STOP HIM!!!" Dean yelled going behind Kayla and holding her arm in a squeeze. Kayla was also scared for Dean but she kept cool and pressed a comforting squeeze in return. 
"Relax! no one is gonna drive baby besides you. Cause... we're gonna win" She said smirking at her brother.
"You have exceptions too, don't forget! but If we loose, it's on you" Dean said before he plainly kissed her head making her chuckle. 
"Deal!" Kayla said taking out her hand. Sam smirked and shook it... 

Twin Prank war.... who will win? Sam? or Kayla?