(Tadashi X Reader) Pubescent Mood Swings

“Shhhh! He’s coming this way!”

“Ow! (y/n)! Tha-”

“Shh!”

Hiro looked around the lab, trying to find the source of the muffled whispering. Shrugging to himself, he just continued walking towards the elevator. Once you two heard the doors close, you emerged from behind a desk.

“He’s gone. Finally,” you let out.

“That was my foot!” yelled Tadashi.

“I’m sorry! You were talking too loudly, and he was coming this way,” you said.

“I get that but- oh come on!” he said looking at your face.

You were trying to give him your best puppy eyes, and it looks like it worked. Because you had Tadashi wrapped around your finger, so to speak.

“Unbelieveable,” he groaned. “Ugh, I can’t stay mad at you forever. Come on, let’s go stalk my baby brother.”

Squealing, you kissed him on the cheek and skipped to the elevator, while dragging Tadashi behind you.

“You know, if we get caught, and I’m blamed. I’m going to punish you even worse than that night you two went bot fighting,” he threatened as you pushed him inside the elevator.

“I wasn’t bot fighting,” you said in a sing song voice. “And I was looking after your brother. I wasn’t betting or anything.”

Fixing his cap, Tadashi just let out a puff of air as you both waited for the doors to open. Once they did, you pulled his arm and ran out the door, just in time to see Hiro make a right turn.

“Where is he going?” you muttered.

“Why are you so concerned? He’s my baby brother?” Tadashi asked.

“Didn’t you know? I though you would’ve noticed sooner,” you said as you both made a right turn.

“Baymax scanned him and I was reading through his data log. Turns out, Hiro has ‘pubescent mood swings.’” You said with air quotations.

Before you knew it, Tadashi was laughing while holding onto you.

“That’s what Baymax said?”

“Yep. OH shush! I see him walking towards us with someone!!!!” you said excitedly.

You both sat on the nearest bench and tried to look inconspicuous. When Hiro passed by you two, you had a gut feeling he would look back. So you grabbed Tadashi’s cheeks and pulled him in for a kiss. He bit on your lip as payback for the sudden kiss, but you didn’t mind. Giggling, you smiled against the kiss and felt Tadashi pull you into his lap. Only to be interrupted by Hiro’s throat clearing.

Breaking the kiss, you two looked at Hiro with a ‘WTF’ face.

“You two following me?” he asked, clearly mad.

“Uhh, we heard you had pubescent mood swings,” you said.

“Unbelieveable. (y/n), it’s on you,” Tadashi groaned.

“Hey! You’re part of this too!” you retorted, crossing your arms across your chest.

“HEY! I was talking first. Anyways, I uh- I uh-” Hiro hesitated.

“Spit it out!” you said.

“I want you guys to meet someone. I really like her and we’ve known each other for a while, so I though it would be okay for her to come here and see you guys,” Hiro said sheepishly.

“OH MY GOD! BAYMAX WAS RIGHT!” you squealed with happiness and you and Tadashi both stood up and hugged Hiro.

“Guys, this is Anna. Anna this is my brother and his girlfriend,” he said politely.

A girl beside Hiro stepped forward and waved.

“Hi! I’m (y/n) and this is Tadashi,” you say kindly.

She smiled at you and you smiled back.

“We gotta go now, I promised Aunt Cass I would introduce her!” Hiro said as he grabbed Anna’s hand.

“Bye! Take care!” you yelled as they got further and further away. 

Tadashi just stared after Hiro and his girlfriend before processing what just happened.
“Unbelieveable. My brother has a girlfriend. My Brother HAS A GIRLFRIEND! THIS IS AMAZING!” he said, picking you up and spinning you around.

When he finally calmed down, he was still so excited, you were sure he was going to start hyperventilating.

“Tadashi, we kinda have to go back to your place as well. The dinner? Remember?” you said, lightly slapping his cheek.

“Yeah. Gahh, let’s go,” he said grabbing your hand.

“I still can’t believe Baymax was right about the pubescent mood swings,” you said laughing in the elevator.

“(y/n). We still got caught,” Tadashi said.

You looked at him with a ‘no shit’ face.

“You’re so gonna get it,” he taunted as he ran his hands up and down your sides.

“Oh yeah? What are you gonna do about it?” you asked as you turned your head around to face him.

“This,” he said and picked you up and ran to his private lab.

And let’s just say, you were both late for the dinner.