Their friendship started when they were five. All thanks to Uncle Tim. He'd brought his nephew, Sam, to the surprise party he and Ziva planned for Tony's thirtieth birthday. Sarah had begged Tim to look after Sam for the day to study for her LSATs.
"All right Sarah," he'd said, "I'll do it. It's perfect actually. I'd told Blaine that they would be going to the same school this year, and ever since then, he's been dying to meet Sam. I'll watch him all weekend if you need me to."
Sarah had sighed. "Thank you so much Timmy. I owe you one."
"It's fine. I love spending tome with Sam." He smiled, and turned to go inform Sam about their plans.
At ten Saturday morning, Ziva opened her front door to see Tim holding a sleeping, blond child. "That's not Sam is it," she whispered as she stepped back to let them in.
"It is," Tim responded. "Can I put him in Blaine's room?"
Ziva nodded. "Of course. Blaine is still sleeping, so don't worry about him waking up." She stared at their retreating forms, and waited for Tim to come back. "He's so big now," she enthused. "How is Sarah by the way? I haven't spoken with her in a while."
"She's doing good. She's studying for her LSATs this weekend, so I'm hanging out with my number one man Sam. I was thinking I could take Blaine. Give you and Tony some time alone…"
"That would be great. Thank you Tim." Ziva smiled at him. "Should we start setting up before everyone gets here?"
"Yeah, Gibbs took Tony to the shooting range right?"
"Yes, I'm not sure that was the best idea though. You know how Tony gets. No matter what though, Gibbs is keeping him out until one." She went to the closet in the foyer, and retrieved all the decorations for the party.
Together, they covered the backyard, kitchen, and living room in streamers and balloons. Ziva then retrieved a plastic crown and pin from Blaine's room.
"Mommy," Blaine said sleepily, "is it time for daddy's party?"
Ziva turned to Blaine, smiling. "Not quite yet matek. Daddy is still with Uncle Gibbs. They will be here soon, okay?"
"Okay mommy. Who else is coming to surprise daddy?"
Ziva put the crown and pin on the dresser, and sat on the bed by Blaine's feet. "Dod Ari is bringing Rachel, Auntie Abby is coming, Sabba Eli, and Uncle Tim. There are a few neighbors that might come as well. And the best part is that Uncle Tim brought his nephew with him."
Blaine's eyes lit up. "Really mommy? I get to meet Sam," he asked excitedly.
"Yes matek." She smiled at him. "You're going to spend the night at Uncle Tim's with him, too. Are you excited?"
"Yes! He and I are going to be the bestest friends in the world forever," Blaine exclaimed. "Where is he mommy? When can I meet Sam?"
Ziva looked at Blaine, stood up, and checked the top bunk. When she saw a pair of bright green eyes, she grinned. "Hello Sam. How are you," she asked.
"I'm okay," he mumbled shyly. "I can't get down."
She held her arms, and helped him down. "There you go." Ziva turned toward her son, and saw him practically bouncing off his bed. "Sam, this is my son Blaine, Blaine, this is Uncle Ti-"
"Hi," Blaine exclaimed, quickly hopping out of bed. "Hi," Sam said timidly.
"Do you like race cars? Or superheroes?"
Sam nodded. "Uh-huh."
"I have action figures of all of the Avengers, and the Justice league. Want to play with them," Blaine asked earnestly.
"Yes," Sam said with a bright smile. "Can I be Captain America? He's my favorite."
Blaine nodded. "Okay." He pulled Sam with him to the toy chest on the far side of his room.
Ziva walked back to the dresser to grab the crown and pin. Looking at the boys once more, she smiled, and walked out of the room to find Tim.
A/N: I started this story some time ago and thought posting it on here would force me to actually take the time to finish it, so alas, here we are.