Disclaimer: They're still not mine.

A/N:Here's the second oneshot, I hope you'll enjoy, please read and review :)

Two

It's been a month since That Night. And it still hurts, sometimes.

Twenty-nine days since Derek left. And she's not waiting for him anymore.

Twenty-five days since Addison went back to work. And the gossip still hasn't died.

Three weeks since she finally stopped avoiding Mark. And she regrets not doing it sooner.

Sixteen days since their second kiss. And he says it was even better than the first.

Two weeks since they woke up together for the first time. And he still can't believe his luck.

Nine days since he told her he loved her. And she told him she wasn't ready yet.

One week since he gave her a key. And she smiled and kissed him.

Five days since she used it for the first time. And they couldn't be happier.

And, thankfully, they're not feeling guilty anymore. Not that they don't know they hurt Derek. They do know that, and they feel guilty about that. But not about this thing they're doing – whatever you want to call it – that's making them feel happier than they had in years.

Mark stopped feeling guilty the moment she kissed him back. As far as he's concerned, Derek lost the right to make them feel guilty the moment he left her. The moment he physically left her. Because, emotionally? Derek left his wife somewhere between their 7th and 8th anniversaries. And, if Derek had stayed – if he'd done anything to prove he still loved his wife – Mark would definitely be feeling guilty. For loving her, for kissing her and for being impossibly happy with her. But Derek left, and Mark's not feeling guilty.

He did, at first. When she avoided him, and he heard the nurses talking about Dr. Shepherd going into an on-call room to cry. He felt guilty back then, because he thought he'd hurt her by ruining her marriage. But, as soon as they talked, and as soon as he kissed her and she kissed him back, he forgot about feeling guilty and focused on feeling happy instead. And on making her feel happy. Because she had a harder time dealing with the guilt.

Addison still feels guilty from time to time, but it's getting better. The guilt almost didn't let her breathe in the first couple of weeks. Every time she saw the empty space on their closet, every time she heard the nurses talking about it at the hospital, every time she saw the new head of neurosurgery... it was almost too much. And, then, she realized he was gone. For good. He wasn't coming back to make it work, he wasn't coming back to yell at her, he just wasn't coming back. He didn't care enough to scream at her. And the guilt started fading away.

There are still some moments, every once in a while, when she can't help but feel bad. Moments when she almost forgets there was a Derek. Moments when, even though she knows this started as adultery, she feels so happy she doesn't really care. But she's getting better at that too, and she doesn't feel guilty about snuggling into Mark and feeling safer than ever anymore. Most of their kisses are also guilt-free, and she's proud of herself for that. She still can't tell him she loves him, though. But she's getting there.

Mark Sloan is experiencing many new things lately. He's never been in love before, and he wonders if he'll ever get tired of feeling like this. He's never lived with a woman before, and he's loving every minute of it. Of course, living with Addison has its bad things – the ever-growing amount of shoes in his closet being the biggest one – but, all in all, Mark wouldn't change it for the world. He likes finding out new things about her. Small details that no one who's never lived with her would know.

Like the way she always sets the table, even if she's the only one who's eating. Or the way she likes to have something to read while she has breakfast – he caught her reading the ingredients in the box of cereal once – and gets cranky if you interrupt her while she's reading. And, his personal favorite, the way she always has a chocolate chip cookie after dinner and before going to bed. Only one, with no milk. She says she's been doing it since she was five.

That small ritual fascinates Mark. The way she takes her time to eat her cookie, savouring every bite as if she didn't have one every single night. And, right now, as she looks at her munching on her nightly snack while reading a shoe catalog, he thinks he's never wanted anything as much as he wants a bite of that cookie. He knows there's a box full of identical cookies in the cupboard, but he needs that one, because that's the one she's eating, and the scene in front of him is almost too much to resist.

So, Mark leans over the table and takes a bite, earning himself a smack and a death glare. "I don't share my nightly cookie!" Mark chuckles and sits back on his chair, looking at her. "Come on, Addie. Give me a bite." She takes off his glasses – and he knows she did it just to punish him, because she knows how much he loves those glasses – and cocks her eyebrow at him. "You go get your own cookie, Sloan." He crosses his arms across his chest, her trademark smirk appearing on his face. "Sharing is caring."

She shakes her head as she pops the last bit of her cookie into her mouth. "Maybe I don't care." He laughs and stands up, walking over to her. "Oh, but you do care. I think I deserve a bite of your nightly cookie from time to time." He leans in and kisses her, and she smiles when she pulls away. "I don't love you enough to share my cookie." The playful look on her face is all the encouragement he needs to kiss her again, and this time, neither of them pulls away.

It's been two weeks since Mark tried to take a bite of her cookie. And he still hasn't given up.

Ten days since she officially moved in. And she's happier every day.

One week since Mark said I love you for the second time. And she's still not ready.

Three days since their first kiss at the hospital. And the gossip is getting worse by the day.

He heard an intern talk about Dr. Shepherd making out with Dr. Sloan in the scrub room today. Which is complete bullshit, if you ask him. First of all, that wasn't making out, that was her wishing him luck before a surgery. Second, they weren't in the scrub room, they were going into the on-call room. And, third, she's Dr. Montgomery-Shepherd now, and he doesn't appreciate people forgetting that.

After a silent dinner in which Addison focused on the plate in front of her and tried not to make eye contact with mark, he stands up and grabs a cookie from the box, handing it to her. She smiles at him after taking the first bite. "Thank you. But I'm still not sharing it." He chuckles as he massages her shoulders, feeling her muscles relax. "I think I deserve a bite. I'm massaging your back and everything."

She lets out a small moan when he works his way down her spine, and he takes the opportunity to lean down and take a bite of her cookie, earning himself one of her famous killer glares. He shrugs and goes back to massaging her back. "At least you're not smacking me anymore." She giggles against her will, and pulls him down to kiss him. "I'm still not sharing." He smiles when she stands up, wrapping her arms around his neck. "Why not?"

Mark lifts her onto the counter, and smirks when she wraps her long legs around his waist. "Because I still don't love you enough to share my nightly cookie." She kisses him again before he can reply, but she pulls away when he tries to take the remaining half of her cookie from her hand. She quickly puts it in her mouth and tries to say something, but her mouth is too full to articulate. "You look like a chipmunk."

He smirks and she glares at him when he pinches her cheeks. "Swallow, Addie. I can't kiss you with your mouth full." She does what he said, and cocks her eyebrow at him. "I did not look like a chipmunk." He chuckles and kisses her again, his hands traveling under her shirt. "You did. It was cute." She tries to frown, but he's trailing sweet warm kisses down her neck, and that's very hard to resist. "Shut up, Sloan." And he laughs against her neck, sending shivers down her spine, because he knows he's won.

It's been one week since that night. And he's still trying.

Four days since his third I love you. And she replied with a kiss.

Two days since she referred to them as a couple. And he's still smiling.

Ten hours since she kissed him before his surgery. And she's missed him like crazy.

It's the first time since she moved in that she's having dinner alone. Mark has a very long, very complicated surgery, and he won't be home until around midnight. After having dinner and eating her cookie, Addison goes to their room and gets into bed, reading a medical journal until he gets home. She hasn't tried to sleep alone in this room, but something tells her she needs him next to her to fall asleep.

Mark walks into the appartment a few hours later, and kicks off his shoes before walking into the kitchen. He wants to eat something before getting into bed with her, because he knows if he goes to their room and sees her, he won't be able to walk away from her. And, let's face it, Mark Sloan needs his food, and not even naked Addison can replace that. But he'd never say that to her face. As far as she knows, she's all he needs to live. And it's close to the truth, anyway.

He looks inside the fridge and pulls out a milk carton, setting it on the counter as he grabs a glass from the cupboard. She really is domesticating him, two months ago he didn't really know if he had glasses in the house. He pours himself a glass of milk, and opens one of the cupboards to look for something to eat, when he spots a plate on the table. He walks over and picks it up, and a smile appears on his face when he reads the bright pink orange that's stuck to the plate.

It's a very short note – just "Welcome home" and a cute little heart as a signature – but it means so much more than that. Because, in the plate, there's a bite-sized piece of chocolate chip cookie, and he knows what that means. He pops it into his mouth and walks towards his room, crawling into bed next to her and grabbing the journal from her, throwing it to the floor.

He kisses her thoroughly, slowly and deeply, and pulls away only to take off her t-shirt. As she unbuttons his shirt, she smiles and moans slightly when he feels his teeth grazing her neck. "Someone's happy tonight." He smiles and nibbles on her earlobe, kissing it before whispering into her ear. "I love you too, Addie."

And she can't help but smile, because he understood.