Family
(Prequel)
It was at a family reunion when Loki finally figured it out.
"Daddy, how come every one had blond hair and blue eyes and I don't?" He whined to his father, who shushed him quietly.
So he went to his mother instead.
"I'll tell you," She replied, "If you promise to keep it a secret."
Loki nodded and she sat down beside him on the bench. The garden was in full bloom and the smell of the barbeque wafted over head. His mother took his hands in hers.
"Loki, the reason you look so different..." She sighed and looked at him. "Its because you're adopted."
Loki shook his head, trying to come to reason with what she had just told him. "No. No. Thats not true."
Frigga smiled sadly. "I'm afraid it is, Loki. We adopted you when you were a little baby. But we have always, always," She emphasized the last word. "Always, loved you."
"No." Loki shook his head violently. "No. You don't love me. You never will. Because I'm not your son!" He gasped, realization coming over his face. "Thats why you love Thor more. Thats why he'll inherit more. Because he's your real son." Loki spat the words out, tears welling in his eyes.
"Loki, its not like that-" She tried to explain, but he was already gone, running away from her down the garden path.
Loki never really forgave them for keeping it a secret from him.