This AU kind of just... happened. Another drabble written for Frozen Fandom Month over on tumblr. This may or may not turn into a collection of drabbles. We'll see x3 This is all meant to be lighthearted humor. Only very little angst... I promise!

Disclaimer: I do not own Frozen or it's characters.

My Sister is a Dragon

Of all the secrets Anna had thought up in all the last thirteen years of her life of being separated from her sister–the plague, vampires, werewolves, a thing about dirt, bugs, an evil twin, a despite for building snowmen?–she would have never thought of this.

"Elsa…?" Anna felt the door click shut behind her as she leaned against it the moment she found herself a little claustrophobic, narrowly avoiding an icy wing that happened to be cramped within the confinements of the four walls of her sister's room.

Anna?

"Elsa, is that you?"

The dragon lowered its neck, leveling its crystalline eyes with Anna's shocked blue irises. It heaved a sigh, causing frost to manifest from its nostrils. A wintery scent filled the room as the temperature only continued to fall.

Anna's cheeks burned a light pink against the cold.

Anna–

"Oh Elsa, I knew it was you! Was this why you locked yourself away? Of course there's nothing to hide, I mean you could have told me you were…you know, a dragon! I just–wow!" Her eyes grew bright with awe as she reached out to touch her sister's icy scales.

Elsa pulled away, a gasp echoing in Anna's mind.

Anna–no, I could hurt you! she cried, recoiling from Anna's touch.

The princess frowned for a split second before a tiny smile adorned her visage.

"Elsa," she started and took a step closer, knowing eventually Elsa won't be able to avoid her. "It's okay. You're my sister, I know you would never hurt me." She continued to hold out her hand, but made no attempt to touch the dragon before her.

It was almost amusing to see such a powerful, beautiful beast try to curl herself into a tiny corner.

Elsa took a moment to regard her before she crouched to the ground until her belly brushed against the now frosted-over carpet and lowered her head.

Excitement coursed through Anna's being when she was finally allowed to rest her hand on Elsa's frigid muzzle. She scaled were not as rough as she had expected, but rather–they were almost soft. Soft and cold.

Elsa closed her eyes, and gave a pleasant rumble deep within her throat at Anna's gentle touch. Anna admired the peaceful expression that crossed her sister's face.

Then, the scales began to shrink–and so did her sister.

Anna withdrew her hand and watched in awe as Elsa stood on two legs, her form covered in a beautiful, extravagant ice dress and placed on either side of her shoulders, just below her shoulder blades, was a beautiful set of glittering ice wings. The wings of a dragon.

"Woah…" Anna breathed.

Elsa avoided her gaze, folding her wings as she wrung her hands and bit her bottom lip.

"Anna, you have to promise not to tell anyone."

"Wait what? Are you kidding?" Elsa shot her a serious, pleading look and Anna sighed. "Okay okay–under one condition!"

Elsa's eyes narrowed, but she waited and Anna grinned, placing her hands on her hips.

"I get to fly on your back."

A/N: Leave a review and let me know what you think! :D