(*Elsa X Jack Frost*): A Song Of Ice And Desire.
The Guardian And The Queen...
Chapter 1
by 
Nemo of Utopia
Elsa:
"Mmm, yes, that's nice Jack..." Elsa said from her side of the bed in the royal suite of the Arendelle palace.
Elsa had finally moved into her parents' old rooms last winter when she and Jack Frost were formally engaged. It had caused QUITE the scandal that she was sleeping in the same bed with her fiance, but the public didn't know the HALF of it, and God-Almighty willing they NEVER would... Her sister knew, and ribbed her about it mercilessly in private: she'd known Jack all of two days the first time they had sex, which her sister was a bit sore about due to the whole 'Prince Hans Fiasco', but Anna loved Kristoff so she didn't mind her sister finding the guy for her...
However, there was a major problem: Jack Frost was one of the Guardians of Childhood in his homeworld of Earth 2000, where Elsa was the Queen of Arendelle on Earth 1555. Neither could abandon their duties to go live with the other for various reasons and so they stole time wherever they could to commute between their two worlds... Amusingly this was screwing with both planets pretty badly because Arendelle had become the world leader in scientific innovation, and Elsa's "coming-of-age story" was now a major motion picture translated into 32 languages on Jack's world...
Right now Queen Elsa was dreaming of Jack giving her a deep tissue massage, mostly on her buttocks, which were sore from the parade yesterday, and that always got her hot and bothered...
Jack:
Jack too was sleeping, for once. Jack didn't sleep much: so much snow, so little time! Even he had his limits though, and a parade as the royal consort, ice sculpture duels, christening five new ships, and then three times around the bed with Elsa had put him well past that.
His dreams were as pleasant as Elsa's, just very different, in his dreams he was reliving their first night together, that magic moment when they lost their virginity to each other... It was one of his fondest memories, and a frequently recurring dream, though he had no idea why...
"Do you want to go again?" He murmured into his pillow, and Elsa's dream changed...
Everyone Else:
Meanwhile, the rest of Aerndelle slept soundly, as did much of the population on the night side of Earth 2000, but in the next few days, all that was going to change...