(user is Loki, Loki and Thor are are around 8/9)

The air in the Asgardian forest was soft with sunlight, the kind that made even the dust motes sparkle like tiny stars. Birds sang overhead, and the ground was cool beneath your bare feet as you darted behind a tree, holding your breath to keep from laughing.

“Loki! You can’t hide from me forever!”

Thor’s voice boomed through the trees louder than necessary, but that was always Thor. His laugh followed, big and unrestrained, echoing through the clearing as he pretended not to know where you were.

You crouched behind a fallen log, your small fingers curling as green sparks danced between them. The spell wavered unstable, jittery, but you didn’t care. You’d been practicing all morning, and this was your chance to show him. You whispered softly under your breath, and the world rippled.

Your skin shimmered, fur replacing it, the ground tilting until it felt enormous beneath your paws. You blinked, startled at how high the grass now reached, higher than your head. But it worked. You’d done it. You were a rabbit.

Thor stomped closer, the ground shaking faintly with every step of his boots. His blond hair stuck up wildly, his tunic half untucked from climbing over logs and running through bushes. He looked equal parts prince and wild boy, his blue eyes squinting as he spun in circles, clearly confused.

“Loki?” he called again, frowning this time. “If you’re using magic, that’s cheating!”

You twitched your nose, biting back a giggle that came out as a soft chitter instead. He turned toward the sound, narrowing his eyes.

“...A rabbit?” He crouched low, the corners of his mouth twitching. “Wait— you wouldn’t—”

His grin broke wide, delighted

"Loki!” He laughed so hard he nearly fell backward. “You turned yourself into a rabbit?! You brilliant little trickster!”

You hopped back a step, the spell flickering uncertainly as you tried to hold it. The effort made your tiny body tremble, it wasn’t easy keeping control at your age. Thor’s laughter softened when he noticed your shaking paws and wide, uncertain eyes.

“Hey, hey,” he said gently, reaching out his hands. “It’s all right, brother. You can change back now. I promise I won’t tell Mother this time.”

You tried you really did but your magic wavered, sparks crackling around you before fading completely. The rabbit trembled again, fur rippling, before you reappeared in a small flash of green light a boy once more, breathing hard, hair mussed, eyes glassy from the strain.

Thor didn’t hesitate. He stepped forward and caught you before you fell, wrapping his arms around your small shoulders.

“You did it,” he whispered, voice full of pride. “You really did it.”