Kara leaned heavily on the second floor railing which overlooked the control center of the D.E.O. and sighed. She could feel her lips turning into a frown and she actively forced the corners of her mouth upward into a trained smile. It was her TV news appearance smile, her meeting with the mayor smile. It didn't reach her eyes.

"What's up with you?"

Kara whipped around to face her sister. Alex glanced at her over the top of the tablet she was holding for a moment and then glanced down again, typing with an annoyed growl at whatever was written on the device.

"Up? With me?" Kara parroted back Alex's question and scoffed, "Nothing's up with me. I'm great… super even."

The elder Danvers finished what she was doing and lowered her device, locking her sister in her gaze. "Then why are you fake-smiling like a maniac and staring a hole in the back of Brainy's head?"

Kara scoffed again, even though she could feel a blush rising to her cheeks. "I'm not looking at Brainy… I'm just looking in a general downstairs-ish direction."

"Kara," Alex leveled, tired, not buying it for a second. "I still have things I need to do before I can go home tonight, so if you could please just spill."

"Okay," Kara relented with a huff, "I think Brainy is mad at me…"

The mild, obligatory interest Alex had been showing about her sister's mood turned to genuine curiosity at the thought of the usually level-headed Brainy being mad at anyone… but especially at Kara. Her eyebrows furrowed, "Mad about what?"

"I don't know," Kara threw her arms up as she spoke, walking away from the railing and toward one of the hallways that branched out from the landing, affording them some more privacy. "I wanted to thank him for the work he did with Lena- making the atmosphere safe for me again- so I was going to take him out for dinner, but when I asked if he wanted to go out to eat he got all weird and closed off! He said he had to work late and I should go eat without him... I even offered to get the food to-go and bring it back here and he said 'no thanks'!"

"He shouldn't be bogged down, he doesn't have any new-" Alex began, before something dawned on her mid-thought, "Wait, where did you ask him to go?"

"That pizza place he always wants to order from," Kara answered plainly, still annoyed and not understanding why that would matter at all. "The only place that will make him that nasty apple and olive pie."

Alex hummed at the response, her suspicion confirmed.

"What does that hmmm mean? Why are you making that face?" Kara asked, leaning in as her sister shifted awkwardly from foot to foot. "Alex!"

The redhead considered the best way to talk about this, a way which hopefully would not send her already agitated sister into one of her outbursts. "Well… there was an incident."

Kara's eyes narrowed, "What kind of incident?"

Alex sighed, "I'm not sure if this is my story to tell… but when Mercy was hacking L-Corp, Brainy's image inducer malfunctioned while he was picking up an order of pizza at that shop. The staff were… less than thrilled about Brainy being an alien."

"I'm going to give them a little talking to," Kara growled, her shoulders square and fists clenched in a way that suggested she might have something more than talking in mind.

Her sister grabbed her arm, "Whoa there, Supergirl. According to Brainy, they already got an earful from that new CatCo reporter."

"Nia?"

"Yeah."

"I am SO buying her a latte tomorrow." Kara deflated a little, "But why didn't Brainy tell me about this?"

"There was a lot going on… it was right before you got Kryptonite poisoning." Alex rubbed her sister's shoulder reassuringly. "You know how Brainy is, he can get pretty secretive when it comes to his personal life."

"Or he's mad at me," Kara sighed, unconvinced. "If the pizza place is the issue he could have just suggested we go somewhere else, instead he made up a lame excuse and basically told me to buzz off…"

Alex shook her head. Working so closely with Brainy had apparently given her some insights into his personality and way of thinking that her sister didn't have, despite the fact that she'd consider Kara to be closer friends with Brainy than she was. "You specifically mentioned the pizza place; he probably thinks that part of the deal is nonnegotiable."

"It's just a greasy pizza joint, there's dozens of pizza places like that in this city!" Kara laughed dryly, thinking Alex was trying to comfort her with a fib.

"It was his favorite greasy pizza place. It was his favorite and he can't go there anymore," Alex crossed her arms, holding her tablet against her chest as she spoke. She tried to put herself in Brainy's place. "He loved their food and he probably assumes you do to… and he doesn't want to spoil that for you by telling you about the way they treated him. And I doubt he was expecting you to ask him to get dinner, so he had to think quickly... he didn't have time to think emotionally or consider how you would feel about the situation."

Kara frowned. What her sister was saying made sense and certainly sounded like Brainy to her. "Since when did you become a Brainy-translator?"

"Part of the job," Alex shrugged and then patted her sister on the back. "I bet if you go back down there and ask him to go somewhere else for dinner he'll say yes."

Kara smiled a real smile and headed toward the stairs.

Alex turned her tablet back and looked over her remaining tasks with a sigh. She wished all of them were as easy as helping her little sister with boy trouble- wait, Alex thought for a moment, was this boy trouble? Kara was asking a boy- a man… a guy- to dinner. And she'd been upset that she'd been turned down. But the guy was Brainy, not exactly Kara's type. She went after guys like James and Mon El: leaders, hero types. Brainy was like Winn, a nerdy best friend type. But then again, when they were in high school Kara had a crush on Kenny Li- and he was as nerdy as they come! Maybe she didn't have a set type.

Besides, Brainy was a hero in his own right… he wasn't afraid to run into danger when the situation called for it… heck, she even had to ground him from doing so. And he was sensitive… maybe not in a way that he was able to express easily, but he felt things deeply, Alex knew this. He definitely cared for her sister, it was written all over his face whenever Kara was hurt or in danger. He cared about other people too, but when it came to Kara… was it more than friendship?

Alex put her device on sleep mode again and wandered back to the railing of the second floor, giving herself a bird's eye view of her sister approaching Brainy's workstation below.

The blonde put one hand behind her back and tapped Brainy on his shoulder with the pointer finger of the other. She seemed nervous, her posture tense.

Brainy turned with a start, almost falling out of his chair at the slight but unexpected physical contact. Kara put both hands behind her back, leaning away bashfully, her cheeks turning slightly rosy above her goofy smile. Brainy on the other hand looked terrified- a look Alex wasn't used to seeing on the usually confident and self assured agent's face. He looked at her sister with wide eyed wonder, as if he still couldn't believe he was lucky enough to be talking to Supergirl.

Yup, Alex thought to herself, it's boy trouble… even if the two of them don't know it yet. She strolled away from the banister to give them some privacy and attend to her work.

Downstairs, Kara laughed awkwardly, "Sorry, I didn't mean to startle you, I just- uh… would you like to go out for burgers?"

"Now?" Brainy asked, brow furrowing.

"Yes."

"I thought you were going to eat pizza."

"No," Kara stammered, "Well, yes… I was. But now I'm not. Now I want to get a burger… and I was wondering if you also wanted to get a burger? With me?"

Brainy blinked for a moment as he assessed the situation. "Y-yes!" he said a little too loudly, and then lowered his voice to it's usual calm tone, "That sounds quite agreeable."

"Awesome!" Kara grinned, offering a hand to help him up from his chair, "Let's go!"

He took her help up but then paused, "I would like to get changed first," he gestured briefly to his black D.E.O. uniform, "And perhaps you would like to change as well… Supergirl?"

She looked down and realized she was still in her uniform. "Yeah, good call," she smiled and noted the way his face mimicked the gesture immediately, breaking out into a grin, "Let's both slip into something burger appropriate and meet outside in 15 minutes?"

"Affirmative," Brainy nodded and headed off toward his quarters.

Kara added Alex to her mental list of people to buy lattes for tomorrow and jogged up the stairs toward the balcony. She didn't even wait for the door to close behind her before zooming off to her apartment.