"So let me get this straight?" Meredith said as she tried to rack her head around everything she had just heard. "You and your ex-wife are friends with benefits, no strings attached?" Meredith questioned.

"Well it's been two years now. I need a little something something, she obviously needs a little something something and who better to give it to her than me? I mean I know what she likes and she knows what I like. It's the perfect situation" I explained to Meredith hoping like hell the mother of three could see my side of the story. "I agree, with anybody else this might not work but we work together, we work ridiculous hours, we have a kid together so if she is around it's not weird. It works, our schedules match and she is GREAT Meredith. Like great."

"I don't need to know all about you two mashing your genitals together. All I'm saying is you two have history. What makes you so sure it's no strings attached."

"Well I know she is kind of seeing this nurse from the psych ward and I've got this whole maybe, maybe not thing going with Blake so it's not like we don't have other people. Its physical Mer. I scratch her back and she scratches mine."

Meredith shook her head furiously trying to get the terrible image out of her head. "I don't want to know anything about y'all scratching one another's backs. All I'm saying is you should be careful." Meredith explained to me as she folded her children's washing into piles.

It had been a couple of weeks since Arizona and I had drunkenly hooked up at the staff Christmas party. Things had started off quite awkward, at first we avoided each other, then we ran into each other and pretended it never happened, until it happened again. This time we weren't drunk. I had gone around to pick Sofia up from Arizona's but Sofia's field trip had been delayed due to weather and she wasn't expected to arrive for another hour. Unlucky, or lucky, depending how you look at it. It happened quite quickly but one minute she was doing yoga in front of the television, sweat dripping from her beautiful body and the next minute we were doing an alternative form of yoga in the bedroom. Arizona and I had always been good at the physical part of our relationship, incredible even. It was the communicating part that we had struggled with.

Today Arizona had text me and asked me if I wanted to come around after she had put Sofia to sleep. It would be the first time they would be meeting since their last encounter and this time, the encounter was planned. I wasn't 100% sure where this was going but I wasn't opposed to a purely physical relationship with Arizona. The girl sure did know how to get down and dirty.

I arrived at Arizona's house just after 9:30pm and like always I knocked. It didn't take long until Arizona came to the door.

"Hey, come in. I've just got to take Sofia's vitamins to her, she had a bit of a silly afternoon so it took a while to wind her down" Arizona explained as she grabbed the vitamin C tablet and the fish oil tablet that the young 6-year-old has taken every night for years. It had started out as a way to build her immune system as a premature baby and eventually turned into a nightly ritual that Sofia couldn't sleep without.

"Ohh my baby is still awake is she?" I said as I headed towards Sofia's room.

"Mummy!" Sofia's tone was so full of excitement, it was moments like that, that made all the stressful moments as a mother well and truly worth it.

"Hey baby" I said as I placed a light kiss to the small girl's forehead.

"What are you doing here?" Sofia asked curiously.

Arizona walked into the room holding a small glass of water and the two pills. Sofia instantly sat up and grabbed them, taking them like a pro. She then took a large gulp of water and handed the water back to Arizona.

"Mama, are you sleeping over?" Sofia asked as she slipped down into her bed and made herself comfortable.

"No baby, mummy is just here to see your Mama for a bit" I said in a soft tone causing Sofia to giggle lightly. I kissed her one last time before heading out of the room allowing Arizona the chance to say her goodnights too.

After finally getting Sofia settled in and ready for bed Arizona finally came and sat down on the couch beside me. One of my favourite things about Arizona was her love for our daughter and I saw that every day in the way she worried, in the way she dropped everything to be with her. Arizona may not have wanted to be a mother when Sofia was conceived but there was no denying that Arizona was a mother now.

"She asleep?" I asked as I snaked my arm around the back of the sofa my body facing the blonde on the other side of the couch.

"She is not far off, she's exhausted. You should have seen her today Callie; you would have been so proud. Sofia has this new thing with her friends where she tells them she will miss them when she leaves. Every time, she will just hug them and tell them she will miss them but she will see them tomorrow."

I couldn't help but smile. Sofia was probably so used to doing that between Arizona and I that it was a normal gesture for her. "That's our baby" I said happily as I kept my eyes locked on Arizona.

"Look Callie" Arizona said quietly, her voice low for the main purpose of letting her daughter sleep. "The other night was great, like really great."

"I know, I know" I interrupted, "You're going to say it shouldn't happen again because you've got the nurse and me and Blake are… I don't know what Blake and I are but I do know that you and I have great sex" I said bluntly.

Arizona blushed and hung her head slightly. "We do have pretty great sex don't we" Arizona agreed. "I just think if we are even thinking about doing what I think you are suggesting we do that there needs to be rules."

"Rules" I repeated. "I agree."

"We can't stay over. We can't have Sofia getting confused and thinking that we are getting back together when we are not" Arizona stated.

I nodded in agreement, "and we can sleep with other people."

Arizona nodded, "absolutely, this isn't a relationship. This is just two adults that have similar schedules that have great sex together" Arizona chuckled cutely.

"No dates, no going out for dinner or lunch or coffee unless its Sofia related" I said firmly.

"I agree, and lets not tell anybody. Nobody needs to know. People will get weird then this situation will get weird. And texting beforehand. The last thing we need is someone showing up unannounced and the other one having company of sorts."

I nodded in agreement to both her points as a soft smile graced my lips. "Can I take you to the room now? Seems like a good way to legally bind this little arrangement."

Arizona bit down on her lip lightly silence looming before she slowly nodded "one more thing."

"What?" Callie asked with a playfully inpatient tone.

"If any of us start to catch serious feelings and things get complicated this has to end" Arizona said in a serious tone. That was a serious risk of their situation. There were already feelings there. The women had a been through so much together, had so many memories together and were lucky enough to have a daughter together. Those underlining feelings were what made the sex so great between them. But both women knew the difference between feelings and feeeeelings.

I didn't even respond to her question, instead I just leant forward and kissed her lips my eyes falling shut as I did so. Kissing Arizona felt like home.

"Can I show you my room?" Arizona mumbled against my lips as she took my hand and lead me through to her room.