Her name was Lydia. She had strawberry blonde hair and emerald green eyes. Loki had been watching her from afar for months now. Lydia was a troubled girl he had learned, but she was also incredibly intelligent though she acted as if she wasn't. Lydia had noticed him watching her a few times. She would smile at first but then started to get suspicious. Loki cloaked himself with an invisibility spell so he could continue to admire her. He hadn't spoken a single word to Lydia but he could tell that he was in love with her.

Lydia's parents were on a holiday in Hawaii so she as alone for the week. Loki watched her sleeping. She looked so peaceful when she slept. He watched her chest rise and fall in a rhythmic pattern for a few minutes before he softly kissed her forehead. "Goodnight my love" He whispered. Lydia must've heard him because she started to awaken. Loki backed away quickly. He fell over one of her discarded heels and smacked his head against one of the bed poles.
"Hello?" She called out. "Who…who's there?" She cautiously slid out of her bed trying to look around for whoever had kissed her. Loki stared at the girl in wonder and amazement as he massaged the wound the pole had made on his forehead. She picked up her tennis racket from the corner of the room and gripped tightly, ready to swing. She used her free to switch on the lamp that upon her bedside table. Her eyes flicked over to where Loki stood. "Who are you?" She walked closer to him. He remained silent, his eyes fixated on her. She poked him with her tennis racket and Loki froze. She could see him, the cloak must've turned off when he hit the pole.
"My name is Loki and I am the-"
"God of Mischief…." She finished for him.
"Ah, so you've heard of me" She stared at him in fear for a moment. She put down the racket warily and slowly walked past him. She took hold of the book that lay open upon her desk. She flicked through a few pages then held it up for him to see.
"This is you" Her words were barely a whisper. On the page was a hideous drawing of Loki that was obviously drawn by a worthless Midgardian that didn't know much about Norse. "Wait, is this a prank because gods and magic doesn't actually exist. I know there a werewolves but I don't believe such a thing would be real." She tried to speak with confidence but it failed her. "I'll call the cops" She said when he didn't respond.
"My dear Lydia, I can assure you this is no prank, although that is what I am known for" He longed to touch her lips with his, to feel her skin beneath his hands but Loki was wary that she was still afraid of him. If he didn't play this right she would never feel safe with him.
A cold gust of air blew through the open window, causing Lydia to shiver. Loki picked up the blanket that lay on the bed and wrapped it around her. "Here, you look cold my love" Fear still swam in her emerald eyes. He leaned forward and softly kissed her forehead. Lydia blinked and he was gone.
"Mother was right, I shouldn't read Norse Mythology late at night or I'll get nightmares" She slid back into the bed and within minutes was asleep.

Sidenote: For those of you who watch Teen Wolf, this takes place inbetween season 2 episode 10 and 11