Hi. I wanted to titillate you.

"Mama! Mama!" Sofia exclaimed, hopping up and down as she ran for the front door. "Mommy's here!"

Callie felt her stomach rollercoaster inside her. Suddenly, she couldn't breathe. It had only been a few months since they'd last seen each other—sure—but things had been different then. That was before they had started texting constantly. That was before Arizona had decided to move to New York—to move in with them.

"I'm coming!" Callie called. A sudden giggle caught in her throat. Somehow, she had never felt so nervous. Not ever.

Sofia ripped open the front door. "Mommy!" She launched herself at Arizona, hugging her with all her might.

Arizona laughed. "Hi, sweetie." She gave her daughter a big squeeze, then pulled back a little to look at her. "I missed you!"

Sofia grinned. "I missed you, too. Come in! We have leftover pasta if you're hungry, and I built a fort earlier if you want to play in there..." She walked back into the apartment without a look back, just assuming her mom was following close behind.

Instead, blue eyes were fixed on brown, as Callie and Arizona took each other in.

Arizona smiled shyly. "I missed you."

Again, Callie felt her stomach flip-flop. "Me, too," she breathed.

Without any thought, the two of them simultaneously stepped forward, wrapping their arms around each other. Arizona pulled tighter, feeling Callie's warm body flush against hers.

Callie exhaled an uneven breath. She lifted her hand to the back of Arizona's head, inhaling the sweet scent of her hair.

Neither one wanted to let go but, finally, they did.

"Mommy," Sofia complained, making a point to cross her arms and pout out her lower lip. "Come on!"

Callie and Arizona shared a smile, and then Callie reached out to grab Arizona's suitcases as they followed their daughter.

Sofia danced through the apartment. "Mom, can I give you a tour?"

"I've been here before, silly!"

"Or are you hungry?" Sofia piped up. "Or thirsty? Do you want a jacket? Mama has a lot."

Arizona reached down and smoothed Sofia's hair. "I'm happy, kiddo. Thank you, though."

"Let's put on our pajamas and watch a movie in the fort!" Sof suggested.

"That is an awesome idea. Let's do it!"

Quickly, the three of them changed into their pajamas. Callie and Sofia went into their rooms, and Arizona shut herself in one of the bathrooms.

When she emerged, Sofia was in the living room, dragging blankets and pillows into the fort.

Callie came up behind Arizona, watching Sof work. "What are we watching?"

"Home Alone?" Arizona guessed, already knowing their daughter's favorite movie.

"Yes!" Sofia giggled. "My favorite."

The three of them crawled into the fort made of blankets and sheets.

"Mama, you sit there," Sofia pointed, "and, Mommy, you sit there, and I'll sit here."

As they got comfortable—or at least attempted to—Sofia turned the volume on the laptop all the way up.

She turned to them. "You ready?"

Callie and Arizona nodded. "Ready."

Sofia clicked the space bar to start the movie.

As they watched, Arizona played with Sof's hair with one hand, while the other lay by her side—an invitation for Callie to take it in hers, maybe. Yes, their chemistry was undeniable—Arizona knew that—but she still felt nervous about putting herself out there and being vulnerable.

Callie looked down and saw Arizona's hand in the space between them, and then her eyes flicked up to the blonde's face. Her eyes were fixed on the screen in front of them.

Callie lowered her own hand and slowly edged it toward Arizona's. A minute later, she finally let their pinkies touch.

Arizona's lip quirked up, but she kept her eyes on the screen as she lifted her own pinky to run it over Callie's.

Callie shivered. Then, in a quick move, she flipped her hand over and entwined their fingers together.

Arizona squeezed her hand and pulled lightly, signaling for Callie to come closer.

Callie scooted toward her, close enough that their arms touched, their thighs…

Sofia ducked her head. "This part always scares me."

Arizona let Sof bury her face in her thighs, affectionately rubbing her back.

She met Callie's eyes, and they shared a warm smile. She lifted their hands up to her lips and dropped a gentle kiss on Callie's. She let her lips linger and, when she exhaled a warm breath, she saw the way it made Callie's skin prickle with goosebumps.

After Sofia ran off to bed, Callie and Arizona continued to sit in the fort, their hands still clasped tight.

"How was the flight?" Callie whispered—something about the muted light and rainy night made her feel like she should speak quietly.

Arizona shrugged. "We all survived it. That's a win by my standards."

Callie let out a cynical chuckle. "By mine, too. How depressing is that?"

"I'm glad I'm here, though," Arizona offered. Absentmindedly, she ran her fingers down Callie's forearm.

Callie squeezed her hand in agreement. She met Arizona's adoring eyes. "God," she chuckled. "When you smile at me like that, I feel like we're at the beginning again. I keep getting butterflies."

Arizona reached up and tucked a strand of hair behind Callie's ear. "Like now?"

Callie gulped. "Yeah."

Arizona briefly thumbed her cheek, then ran her fingers down Callie's neck. "Now?"

Callie offered a tight nod.

Arizona smiled, her hand running up Callie's thigh.

Callie squeezed her eyes shut.

Arizona edged closer, her lips a hair's breadth from Callie's—so close that Callie could feel the vibrations of Arizona's voice when she breathed, "How about now?"

Callie slowly opened her eyes and reached up to cup Arizona's cheeks. "Butterflies. Millions of them."

At last, she pulled Arizona face to hers, and instantly their lips were pressed hard, their mouths opening to try to swallow more of each other, to try to swallow as much as they could.

And—after so long, after so much wanting—Arizona didn't even try to swallow the moan that bubbled up in her throat. "God, Callie."

Callie smiled against her mouth, pleased that Arizona wanted her as much as she wanted Arizona.

Arizona pressed closer, forcing Callie down onto her back.

"Ow!" Callie yelped as she lay down.

"What's wrong?" Arizona worried.

Callie reached under her back and came up with a stuffed dog with hard beads for eyes. "This little guy was stuck under me."

Arizona laughed, remembering where they were. She looked around her. "We're making out in a blanket fort. It's like junior high sleepovers all over again."

Then, thoughtfully, she stared at Callie. "But this is a lot better."

Callie agreed: "Hey, I didn't even kiss anyone until high school, so this is definitely better.

Distracted by the warm curves beneath her and the thigh that had found its way between hers, Arizona brought her lips back down to Callie's jawline, moving down until she reached the hollow of her throat.

"Arizona..." Callie groaned.

Arizona felt her stomach clench at the way Callie said her name.

Arizona used her arms to sit up, inadvertently pressing herself harder against Callie's thigh.

But she forced herself to stay focused. "I've never wanted anyone like this," she confessed. "I mean, the way it is with you. You touch me and I go crazy."

Callie ran her hands down Arizona's hips. "You know I feel the same way." She sat up and kissed Arizona's shoulder. "I always will."

"And I want to..." Arizona paused. "Be with you... in that way—in every way, really—but I was thinking, maybe, we could take things slow."

Callie nodded along with her. "I was thinking the same thing."

"Really?"

"Yeah. Like, why not make it special?"

"And we're different than before," Arizona added. "We're different people, to a certain extent. I want to get to know you again."

"I want that, too. But I still want you to move in. No matter what anyone else says."

Arizona's brows furrowed. "Did someone say something?"

Callie shrugged. "Just Meredith trying to look out for me. Asking what if we don't work again and how that'll be for Sofia."

"Do you have any what ifs?" Arizona worried. She was all in.

"No," Callie swore. "You?"

"No," Arizona vowed. "I'm not going anywhere. Except right now." She stood up.

Callie pouted out her lower lip, and she looked so much like Sofia had earlier. "Where?"

"Your guest room. If I don't leave you now, our 'moving slowly' will end in seconds."

The mere thought in her head almost made Callie moan aloud. "True."

Outside the fort, they began walking down the hallway side-by-side.

"Well, I guess this is where I leave you," Callie lamented as they stood in front of the door to the guest room.

Arizona nodded, forcing herself to be strong. How badly she wanted to give into what her body hungered for: Callie's.

Without thinking, she stuck out her right hand. "Well, goodnight."

Hesitantly, Callie met it with her own, and they shook hands. "Goodnight, Dr. Robbins." Something about the handshake made her feel like she had to be formal.

Arizona grinned and dropped her hand. It tingled by her side. "I'll see you in the morning."