A/N: I saw this wallpaper explaining what all the gestures and things mean so I decided to do a series for all of them.

…

Kiss on the forehead= I hope we're together forever.

Her name was Casey. She had been seventeen years old with chestnut colored hair and a genuine smile. She liked art class and loathed English. Her love of cats, Japanese cartoons, and skateboarder boyfriend Tyler had made Cristina remember her. She used to play piano just like Cristina before she was diagnosed with cancer. Cristina had operated and Casey hadn't made it.

It seemed that deaths should only happen at night. If it happened at night, grieving parents would at least have the minute comfort of sleep. But when death struck mid-afternoon, parents were forced to walk around as ghosts until the day was over. It only seemed to add insult to injury in Cristina's mind.

The resident, on her part, was attempting to continue with her day. She had her earphones in contently listening to Fall Out Boy. The music was quiet enough for her to hear her pager as the gravelly voice of the lead singer tried to erase her mind. She didn't want to see the girl's cold body on that table in that OR, but she did every time she blinked.

Cristina shivered as she remembered Casey's mother as she told her. She had been hysterical: crying and clinging to Cristina's scrub top as she begged for her daughter's life. The woman looked just like Casey and amber eyes filled with such grief. It had been one of the most heartbreaking things she'd ever seen.

"It's not your fault ya know." She looked up and sighed. She hadn't seen Meredith approach.

"Then whose fault is it?" She removed her headphones and closed the chart she just completed. She would have to leave soon to get test results back. Casey wasn't her only patient. Casey. She mentally shook herself. Why was this affecting her so much?

Meredith gnawed her lower lip in thought. Her hair was tied in a messy bun and her clothes were all rumpled. She looked exhausted.

"Don't worry about it. Go sleep somewhere." Meredith looked at her friend in confusion.

"You look like Hell warmed over."

"Gee, thanks." The Asian woman shrugged unapologetically and watched as her friend turned away.

"We're still gonna talk about this," Meredith said as she walked away, hopefully to an on-call room.

"Yeah, yeah," Cristina mumbled as she glanced at her wristwatch. The lab tech told her the results would be done in an hour and only thirty minutes had elapsed.

"She's right you know." Cristina looked up, startled.

"Dammit Erica, should I get you a bell?" She didn't like being snuck up on. It was one of the reasons she hated surprise parties so much. She liked having control.

The blonde attending simply cocked an eyebrow. Truth be told, she enjoyed sneaking up on the resident and did it quite often much to the other's chagrin.

"A bell? I don't think so." Hahn answered the decidedly rhetorical question. Cristina scowled at her.

"A collar on you however…"

"Shut up," Cristina hissed and blushed despite herself. She looked around quickly. Except for the nurses that were milling around, they were alone. God, she hated when she did that. The constant toying with her at work was getting on her nerves.

"What do you want?"

"Dr. Yang, do I hear insubordination?" The look on the resident's face was almost comical. It was a cross between a deer in the headlights and an indignant kitten.

"Look if you haven't noticed my day has been utter crap," Cristina said. She was getting annoyed.

Erica's eyes softened. She looked around and very quickly leaned over and pressed a kiss to the resident's forehead.

"I know." Cristina looked up in surprise but the attending was gone.

She checked her watch with a stupid grin plastered to her face. Minus well see if the lab tests came back early…