Imagine during the attack on New York Loki takes shelter in Stark Tower while The Avengers are fighting the Chitauri. You’re a maid working in the Tower, and end up walking in to find Loki standing in the middle of the room. He sees you, and ends up taking you as a hostage and locking you up in a bedroom.
While he’s not looking you try to escape, but the door creaks and he catches you. He throws you down on the bed and pins you down, and aggravated with your struggling, fists his hand into your hair and yanks your head back.
To his surprise you let out a loud moan, immediately flushing in embarrassment. For your little stunt, he decides to give you a different kind of “punishment”.