Disclaimer: I don't own OUAT , Frozen or the original Fairy Tales etc.

AN: One assignment down, two to go. First year of my 2-year part-time writing course nearly over. Whew. If only fan fiction hadn't taken over my life just before it started… So, a new story for 'the lost hour' - I hate it when the clocks go forward in spring, so I'm posting this as they change longing for winter again and also because we haven't had snow yet this year… I loved Frozen (I won't admit to how often I watched it) though I had a dozen different ways I wanted it to go. Anyway, this is my first crossover fic, so enjoy.

Flashback.

Even her tears were victim to her powers. Elsa gave up fighting to control the magic and let the drops of ice scatter at her feet as she cried.

"I tried to warn you."

She looked up at the sound of the Evil Queen's voice. Their kingdoms had always traded with one another and after loosing "Weasel Town", she couldn't afford to break with the White Kingdom once the new Queen came to power. She had never met Snow White. That had been part of her childhood where she was locked away. Regina had attended her coronation though. She had sought her out on the mountain, not afraid of her powers. Elsa had listened to her words, but they had been interrupted by Ana before she could finish their conversation. After she had found a way to stop the snow storm, Regina had returned home, keeping a cool Queenly distance. Until one month ago.

Elsa didn't bother to turned around. "I thought he loved me."

"You created him, you gave him life but you also gave him free will."

"I want to undo the spell."

"Are you sure?" The words were whispered over her shoulder, sending Regina's warm breath across her neck. "You know what that will mean."

She did. Olaf would cease to be human. He would return to being nothing more than a snowman and when that happened…. Well, it was summer and she wouldn't be there to protect him.

"Do it."

"It's your spell, you have to cast the reversal." Regina reminded her.

"Teach me."

"What do you say?"

Elsa frowned, she hadn't had to use that word since becoming the Queen. She knew Regina wouldn't help her unless she said it. At least as another Queen Regina was on an equal standing with her. That made it slightly less difficult. She turned around.

"Please."

Regina smiled and reached out her hand. She pulled Elsa in close, whispering the words in her ear to reverse the spell. When she finished, Elsa didn't pull away.

"Why are you helping me?" Elsa asked.

"Your frozen heart stops Olaf from loving you, but it also makes your powers stronger. That's something my mother taught me. Love is weakness." Regina unwound Elsa's hair with her magic and stroked her fingers through the white-blonde locks.

She reminded her a little of Snow White. Except that Elsa had grown up alone, pushing away those who loved her. It had been Elsa's ancestor who cast the terrible snowstorm the year Snow had been born.

"You've been so brave." Regina told her. "No-one else understands that, but I do."

She wanted to pull away as Elsa's skin grew cold against hers, but her own magic was quick to adapt and protect her. Regina planted a gentle kiss on top of her head and felt Elsa's surprise.

A moment later, Elsa spoke. "He shouldn't have run off with her. Ana was my sister."

"And now they will both learn what happens to those who cross the Queen."

She pulled away. "Yes. They will."

Elsa looked into Regina's eyes, as if unsure what the other Queen really wanted from her. When Regina smiled, all she could think was how much she wanted her approval. She accepted Elsa for who she was. She wasn't afraid of her gifts. Most important of all, she didn't recoil from her touch.

Shyly, Elsa held out her hand, palm up. A swirl of ice gathered above her skin and within seconds formed in the shape of an apple. She held it out towards Regina.

"Thank you."

Present.

Emma added another log to the fire and watched Regina turn the page of her book. There was a soft red blanket tucked over her lap and two cups steaming on the coffee table. Henry was upstairs; it was long past his bedtime, so the two of them were completely alone.

"Are you going to sit there staring all night?" Regina asked with a smirk, raising the blanket as an invitation for Emma to rejoin her.

"I can't help it." Emma stood up and stretched her body as she tried to fight back a yawn. "You're too gorgeous. I think the firelight just makes it harder to look away."

"Pfft." Regina shook her head, smiling as she watched Emma cross the room towards her. "I think we need to change Henry's book and start calling your Princess Charming."

Emma snuggled in next to her and adjusted the blankets to cover both of them. "If you do I'll have to think up an equally ridiculous nickname for you."

"You wouldn't dare." Regina closed her book and put it out of the way so that she could wrap her arms around Emma.

"Oh, wouldn't I?" Emma closed her eyes as if she was trying to think.

"Uh uh. I'd have to withhold cooking those desserts you like."

Emma opened her eyes and grinned. "Is that all?"

"What would be a more appropriate threat?"

"I can think of a few things. Like…" Emma leant in to kiss her.

"But that would be punishing me too." Regina told her, stroking a stray lock of hair from Emma's face. "I like kissing you."

And to prove it, she kissed Emma again.

"Do you think it will snow soon?" Emma asked, resting her head on Regina's shoulder and turning back to the fire.

"Maybe. I wouldn't worry about it too much. Storybrooke weather is usually quite mild. If it snows it doesn't last more than a couple of weeks and the town carries on as normal."

"So, no snow days?"

"You'll still be expected to go to work if that's what you're asking?"

"Yeah, and wondering if you wanna build a snowman with Henry, or have a snowball fight?"

"Henry and I build a snowman every year in the garden. I make sure he wraps up warm and when we've finished we have hot chocolate to warm us up."

"What about snowball fights?"

"I leave that to his friends. If he has them at school and I don't know about them…"

Emma smiled. "So you've never thrown a snowball at anyone?"

"Not in this land."

"I bet you throw like a girl."

"I am a girl." Regina reminded her. "Though my aim was always pretty accurate."

"Maybe we could have a private battle? When Henry's at school."

"Really? Like a competition?"

Emma nodded. "With a winner, and a prize."

"What kind of prize?"

"I have a few ideas." She twisted and climbed onto Regina's lap, straddling her.

Regina felt the blanket fall away and adjusted her arms so they were above Emma's hips. "Perhaps you could demonstrate now?"

"I think that would be a good idea."