If Our Love Is Wrong

A/N Ok so we are entering the secret relationship stage, so this is sort of a mashup of moments from that. Get the telling Derek thing over with because it's getting annoying.

Seattle Grace Hospital, Seattle, WA 2009 - S5E13

Mark fell asleep with Lexie's head tucked into his neck. He was embarrassed, still so humiliated. If anyone found out about this he wouldn't be able to face them again. But then again, she was still here. Nothing seemed to frighten this girl off. Her fingers brushed over his brow and into his hair, he felt caressed and cared for. She was soft and gentle with him, she cared about his feelings. How had he ended up in this position? Ok, he knew how but this was only meant to be once.

He was like some sort of teenage crush who snuck out the window after they made out for an hour. He was sneaking around past Derek, sleeping with Meredith's little sister in an attic. Now he was laying in a hospital bed and they were basically cuddling. And he was enjoying it. He liked her being around, she wasn't clinging or desperate, she let him have enough space, and she wasn't afraid of him. He was safe in her arms and a part of that almost scared him, it scared him how much he liked her. What was he going to tell Derek now?

Seattle Grace Hospital, Seattle, WA 2009 - S5E14

The elevator doors clunked shut. She smiled at him and took his hand in her own. For the brief five minute ride of the elevator it was just the two of them in the world. Even with no sex allowed it was still great just being with her. She had this vibrant excitement to her, or was that just because it was Valentine's Day. Oh crap, he thought, it's Valentine's Day. Is she expecting something? What even are we?

"Hey Lex," he said stopping the elevator for a second.

"Yeah?"

"I'm sorry I forgot it's Valentine's Day, did you wanna do something tonight? I still can't-" he shot her a look, "you know. But we could get dinner or something." She nodded and gave him a kiss. She was thinking about all the ways this was perfect. Somehow she'd fallen into this relationship with him by accident. They didn't even need sex anymore to have a good time, something was happening here. It didn't scare her because she had decided to 'go with the flow' after George. But it did make her feel a little hidden. Maybe it would nice to be more official, she couldn't keep all of this goodness to herself for too much longer. And she couldn't exactly talk to George about it.

Callie! Callie knew and it would be fine to talk about it with her because she was Mark's best friend, she would understand. She would have to listen because she was the only one who knew.

Seattle Grace Hospital, Seattle, WA 2009 - S5E17

Mark told Derek about us! He got his hand busted and face all beaten up and he looks like a sick puppy but he did it. He's proud enough of me to tell Derek. He wants us to be together. I kinda can't believe he did it. Though it was getting a little ridiculous, he was buying me secret coffee and feeling me up in the elevator. I want to sit on his lap on the couch and make out in front of movies. Now I guess we can do that. Lexie was thinking as she doodled all over her charts, there were little stars and hearts. Their names encircled with love.

Last night was the first time Mark stayed the night in the attic. He said it was like sleeping on the ground but she didn't mind it so much if she got to wake up next to him. She loved mornings, loved how soft his lips were after he'd just woken up. How he still smelled like he had last night and how his brow creased when he was dreaming. How his breath blew soft and warm onto her cheek. How she could trace her fingers over his chest and he would chuckle pretending not to be awake.

They were almost late because she couldn't drag herself away from him, once they got to work they had to act professional. At least now they could flirt a little and catch the occasional break in an on-call room without having to worry about being caught. Derek and Meredith knew about them now, okay maybe Derek wasn't totally happy about the situation but at least she could talk to Meredith about it if she wanted to. She could eat breakfast with him and talk about where they were going to sleep in front of her sister and her friends.

Seattle Grace Hospital, Seattle, WA 2009 - S5E18

"Hey Lex," Mark said, catching up with her as she strolled calmly down the hallway. "That was quite a kiss, are you sure it was just for the interns' benefit?" He smirked, that usual grinch-like curved lip smile that she knew meant he was reply images of her naked in his head like he was at the theater. She stopped and turned around to face him, a grin creeping onto her face as she placed a hand on his chest.

"Well, maybe it was a little for me too."

"Thought so," he replied, taking the opportunity to sneak in a quick peck of her lips before discreetly smacking her ass with the chart he was holding. Before taking off down the hall and not looking back. Lexie stood there in stunned silence, almost running to catch up with him.

"Hey," he stopped when he heard her voice, "you can't just do that and run off!" She said with false anger.

"Why not? Unless you don't want me to." She couldn't argue with that, he was too good to resist.