Title: "Brotherhood"

Rated: K+

Summary: In which Giotto and Tsuna were brothers—and the former had a huge brother-complex toward the latter while the latter was completely not aware of it.

Warn: AU, big brother!Giotto, little!Tsuna, ooc, weird four-year-old speech, dialog-heavy, absurd, weird, not beta'd.

Disc: I don't own KHR.

Note: "END" means the end of a chapter while "THE END" means the end of a story.

"Oniichan, can Tsu-kun ask oniichan a question?" fifteen year-old Ieyasu "Giotto" Sawada looked up from the Math homework his teacher had given him earlier today and looked straight at his four year-old little brother, Tsunayoshi Sawada.

"Sure thing, what is it Tsu-kun?" the little boy stared at the pair of orange eyes before smiling widely.

"Can Tsu-kun marry Kyo-chan?"

(If Giotto had drank something, he would've spit it out and coughing to breathe by now.)

"W–W–WHAT?!" said orange eyes bulged out in shock whilst his mother, Nana Sawada who just finished cooking for dinner a minute ago, giggled at her little boy's question.

"Aww, who is this "Kyo-chan" my little Tsu-kun wants to marry?" Giotto snapped his head toward his mother and shrieked.

"KAA-SAN. NOT. HELPING."

(It was a good thing his father, Iemitsu Sawada, wasn't here at the moment; or else the two of them would freak out even further and his mother would have kicked them out for the night without dinner.)

"Oh shush Ie-kun—like you didn't do it when you were about Tsu-kun's age."

"B–b–but at least you knew who it is—you don't even know who's this "Kyo-chan" is, kaa-san! I can't have my baby brother be married to someone we don't know—let alone marry at the age of four!"

"Ieyasu!"

"B–b–but kaa-san—!"

Tsuna blinked, "…does that mean Tsu-kun can't marry Kyo-chan?"

Nana, who's still internally cooing at her adorable little son, shook her head, "of course you can, Tsu-kun—" while ignoring another shriek of "NO KAA-SAN!" from her panicking son, "—if you can tell kaa-chan who's this "Kyo-chan" you wanted to marry and why."

Blinking again, he nodded. "Un! Kyo-chan is Tsu-kun's friend at school and Kyo-chan is really nice to Tsu-kun—and Tsu-kun wants to marry Kyo-chan because Kyo-chan is nice to Tsu-kun when Tsu-kun's friends are being not nice to Tsu-kun; and when Tsu-kun asks Kyo-chan if Tsu-kun can be with Kyo-chan forever, Kyo-chan says Tsu-kun can't be with Kyo-chan forever because Tsu-kun and Kyo-chan aren't family; a–and Kyo-chan says if Tsu-kun marry Kyo-chan then Tsu-kun can be with Kyo-chan forever." Now looking at the mother-and-son duo with big doe-like eyes (which was filled with very pure child innocence), "c–can Tsu-kun marry Kyo-chan, oniichan, kaa-chan?"

Instead of answering, Nana squealed and picked Tsuna up; hugging the life out of him in the process while Giotto was having another panic attack and gaped. (Later, he burst out again from, now, just fully knew that his cute little brother were bullied by his friends and said to Tsuna if any of the kids ever bothered him again, he should talk to him or his mother.)

"You are so cute, Tsu-kun!" she gushed, "and sure—when you grow up to a very handsome man, okay, Tsu-kun!" as he nodded with a wide smile on his face.

"Un!"

END

A/N: A request from Natsu Yuuki (sorry if didn't meet your expectations), and would probably (maybe?) continue this in the next chapter—you can guess who "Kyo-chan" and Giotto's are, they can be either canon or oc. Also sorry for making another series rather than updating—having a WB and procrastinating for the moment right now. So, uh, reviews would be nice…?

~G L. [Jakarta, 10.07.2014]

Edited and added a bit. [Jakarta, 15.07.2014]