Note* I beta my writing the best I could. If you see a lot of errors and can't handle it, please inform me!
Loki was no stranger to jealously, he had always felt its vivid burn as he and Thor grown up. Thor was forever the favored brother, preferred prince, first choice warrior; his list goes on and on. Thor met Darcy far before Loki was introduced to her a few days before his brother's wedding to Dr. Jane Foster. He heard constant stories of her wit, mischievous ways, and passion for justice from his older brother weekly visits to Asgard. He supposed she was interesting, for a lowly mortal; however, Loki thought Thor was marrying the wrong woman by the ways he praises Darcy Lewis. Yet, when Loki watched his emotions run across his face, Thor's eyes never glazed over liked they did for Jane.
When he finally met Darcy Lewis he commented on how sadden she must be to see Thor wed another woman who is not her, just like the other women he's seen since his brother's engagement. Her reaction to his assumption was not what he expected, she laughed. She called him ludicrous and asked him what has he been drinking, he abstains that he liked her from that very moment. As the wedding came closer he gravitated towards her for company. Their conversations went back and forth, she kept up with him and she kept him on his toes. Loki lets himself go, telling her everything he could think of, she was genuinely interested to listen to him. She spoke of her family and how she ended up working for Jane Foster (desperate for college credits), he enjoyed her voice as she talked. He dragged Darcy everywhere he could think of, the lavish royal library, the bustling market place, and the scholar and warrior academies. He wanted her to see of all of Asgard in her short stay.
Soon the wedding came and to Loki's dismay, he didn't see Darcy until the reception, even then he couldn't get to her. He watched her dance with every male that came her way. The burn of jealously was all too familiar as he was continuously intercepted by someone for her sole company. It was ridiculous that he craved a mortal's presence but hardly cared now.
He was talking with his mother when he saw her from the corner of his eye heading to the refreshment table, alone. Loki gave his mother a quick excuse and stride to Darcy's side. As he was four feet away the light-elf prince from Álfheim swept in front of him.
Loki finally snapped as the elf placed a hand on Darcy's smooth shoulder and leaned close to her ear. Loki's teeth gritted in anger; he stalked forward, grabbing the hand off Darcy's shoulder he turns to the Álfheim royal. Loki placed his hand on the other prince's face and shoves him away roughly; the elf lost his balance and topples over. The guests around them move away instantly from the scene in watchful silence for what will happen next.
Darcy gasped at Loki and asked him if he was insane, he smiled at her.
"Yes."
He took the cup of wine from her hand away, placing it on the table. Loki grabbed hold of her now free hand and dragged her away from the party to show her more of Asgard and have her company all to his own.