Loki was taking a shower. His eyes are closed as he moved his fingers through his hair, getting the shampoo in his hair thoroughly. He was singing an old Asgardian song that he was taught as a child, hearing Loki even humming is quite a rare thing. He hardly ever sings in the shower, even when you're not in the apartment.

Loki felt satisfied with the shampoo in his hair, so he tilted his head back and he begun to wash it out. He was still singing that old Asgardian song, and oh boy it sounds so heavenly when he sings it.

You were in the other room, doing whatever. Then, what caught your attention, was Loki singing. He's singing. You got up and out of your bed and you made your way towards the bathroom. You quietly leaned against the wall and you listened in as Loki sang. You felt calm as he sung. And gods, you wished he sang like that more often.