Hiro was mentally a ten year old, but not physically. Strange enough Hiro didn't mind it at all, it kind of felt like a really fun dream, he had super powers and the only adult watching him was grown up Ando, really a ten year old couldn't ask for more.
Hiro was at the moment happily flipping through a comic book, thinking of good examples of showing Ando the true meaning of justice when he got to the end. Ando was wandering around peering at the rows of comic books trying to remember what the had last read in the different series. Hiro darted his eyes toward him before glancing back down at the picture before him. Below the Heroine had just declared her love for the Hero and they embraced in a hero worthy kiss.
Hiro's ten year old mind pondered again why ten year old Ando would never let him kiss him. He loved Ando after all, and all the greatest Heroes loved to use this greatest form of affection with their best friends [thought Hiro had noted most of their best friends were girls…] to show that love. It was probably because Hiro hadn't been a hero then Hiro reasoned with excitement. Grown up Ando was probably expecting a kiss from grown up Hiro now! With a gleeful giggle at his discovery Hiro shut his eyes very tightly and opened them to find the shop frozen in time.
He put the comic down and rushed over to where Ando stood. Ando had been bent over a row of Hulk comics. It took a few seconds to straighten Ando up but he managed. Hiro squeezed in in front of Ando, closed his eyes tightly and kissed Ando straight dab on the mouth. The time flow unfroze and suddenly Ando's mouth was instinctively moving against Hiro's. The kiss was warm and sweet, innocent just soft lips moving against each other. It only lasted a few seconds because it took Ando that long to figure out what was going on before jumping away from Hiro. "What do you think your doing!" Ando yelped, wiping his mouth with his arm. Hiro cringed and meekly said "Showing affection?". Hiro squirmed under Ando's disbelieving stare as the adult's mind raced to make sense of this.
Then it snapped together, ten year old Hiro had been obsessed with showing 'affection' to Ando until he was elevenwhen he had gotten a talk from his father. Which was soon followed by a crush on a classmate called Rukia who Hiro had decided he wanted to show affection to more.
Ando groaned out loud before turning his attention back to poor Hiro, who looked like he was going to burst into tears. "I love you too Hiro" He explained carefully "Like a brother" His heart tug at him for the half truth "And brothers hug not kiss" Hiro's face fell with disappointment "Because its faster, superhero's like you don't have a lot of time to show anymore affection than that see? Especially since we have this mission to complete. Now lets finish looking for the next chapter of the 9th wonders alright?" Ando grinned and Hiro nodded in agreement. Ando bought Hiro a comic afterwards and soon Hiro was bouncing around with his usual smile.
Ando waited until Hiro was to busy to notice to reach up and run his hand over his lips. Hiro tasted like syrup from the waffles he had just eaten. It hadn't been horrible. Beyond weird, but not horrible. If they ever got the real Hiro back he wouldn't mind trying that again, he admitted, if only to himself. But for now he needed to focus on getting Hiro back, he placed his hand on Hiro's shoulder and said Hiro "Lets go."