Odin looked down at the tiny Jotun child cradled in his arms. He hadn't known it was alive until it breathed a wisp of cold air into the Allfather's face. He felt pity for it: abandoned in a temple. It was freezing, as was usual for one of it's kind. Odin was about to put it back onto the floor when his fingertips accidentally brushed the side of its face. He stared on in astonishment. Slowly, it's deep blue skin tone ebbed away and a pale, chalky pallor, much like his own, replaced it. It's blood red eyes dissipitated, leaving a only white, much like the snow surrounding them. Uncertain of what to do, he walked back out with the child and stood with his steed as he called Heimdall. There was a flash of light, and then they were in the Realm Eternal.
When Odin looked back down, the child's eyes were a sparkling green.
Frigga was worriedly standing on the Bifrost. The rest of her husband's fleet had returned, victorious, so why hadn't he? She saw the swirl of light that indicated someone passing into Asgard, and heard Heimdall's greeting. Odin came into sight. She sighed with relief, but the breath soon caught in her throat as she saw his mangled eye. She picked up her skirts and ran to him.
"I am so glad that you returned to me!" She embraced him tightly. "We must get you to the Healers-" her voice was cut off by a tiny cry emanating from within the Allfather's cloak. She stepped back as Odin withdrew a wriggling baby from his drapes.
"He was abandoned. A Frost Giant. I would never force such a thing on you, Frigga, and Thor destroys everything in his path-"
As if on cue, the two year old stumbled down the Bifrost, clinging tightly to Fulla's supportive hand. The Allfather looked at his wife as she turned and whisked the child out of his arms. She turned back to the toddler tugging on her skirts.
"There's someone I'd like you meet, Thor darling." She presented the baby at his eye level. "Meet Loki. Your new baby brother." Odin's eyebrows rose as he tasted the name on his tongue. Loki. Mischievous. His mouth quirked up slightly.
His wife was an interesting woman.
Thor's hands clenched and unclenched, reaching for the squirming bundle. Frigga half put the baby in his arms, but still supported within her own. Thor's blue eyes widened as he took in the babe before him. The Allfather looked on at the scene, almost smiling, before Thor roughly headbutted his adopted brother in the head.
Frigga pulled back, shocked but laughing. She stroked Loki's head. "You have to be gentle, until he can play with you."
Thor scrunched his eyebrows together. "How loooooonggg?" he whined, stomping his feet. Heimdall laughed alongside Fulla.
"Not long, child." Frigga stroked his hair and smiled. "Not long."