“Put a symbol (or several) in my ask box, and I’ll give you a headcanon for our muses/character(s). Yes. Do it.”
☾ - sleep headcanon
Loki is a nap whore—less because of the actual sleeping, and more because he will ensnare one or both of the boys and curl up with them in a manner that sits somewhere between limpet and cat.
★ - sad headcanon
The moment Loki knew he was in deep shit was the moment the very thought of James dying knocked the wind out of him and turned him ice cold. It was when he knew he truly loved the old soldier, which was frightening in and of itself, but it was also the moment he was forced to face the fact that he had fallen in love with a mortal. Someone who, unless he found a way to stop it, would be taken from him no matter how hard the god fought to keep him safe.
It similar with Steve: the moment he saw the Captain bloodied and beaten after a mission and felt his stomach twist, felt the same desire to care and protect that he did with James, was when he knew he was doubly fucked—triply, really. He had a true need to care for and protect both of his boys not only for his own sake, but for the sake of the other, too.
☆ - happy headcanon
Loki loves to hang back and watch Steve and James with their friends. Nat, Eli, Clint, Sam, all of them. He loves to watch them laugh, loves to watch the way their eyes light up, loves to see them relax.
☠ - angry/violent headcanon
Another kind of sleep headcanon: Loki is not exactly the kind of person you wake out of a nightmare haphazardly. Depending on how deeply dug in he is, or what kind of nightmare it is specifically, there’s a decent chance he’ll wake with his hand clamped around your throat and murder in his eyes before he comes back to himself.
✿ - Sex headcanon
As much as Loki loves to be the one taking both of his boys in at once, he’d very much like to see someone else take a turn.
■ - Bedroom/house/living quarters headcanon
Loki doesn’t shower with his water as hot as most people keep it—not for extended periods of time, anyway—unless he’s hoping someone might come and join him. Same thing goes for baths.
♡ - romantic headcanon
The God of Mischief is, in fact, a sappy little fuck. Gender norms be damned, he will bring his boys flowers or chocolate or whatever the hell he feels like. He’ll leave them both little presents in pretty packages, while at the same time finding more dangerous toys for them both; he’ll bring them tea or surprise them with cozy, romantic evenings in or leave them orders to dress up and drag them off somewhere nice in the city (or another). Satisfaction might not be in his nature, but spoiling certainly is.
♥ - family headcanon
After leaving Asgard, Loki never expected to have any kind of family every again. He told himself he didn’t want it; he told himself he was better off without it. A few thousand years and a circus later and his Company was the closest he’d yet come to a family of some kind, though he intentionally kept a clear distance between himself and the members. That line was blurred first with Charlie (just a bit, just enough), and then came James, and Eli, and Steve, and so on and so forth—until now when he looks around he doesn’t simply have a collection of strays around him, he has a family that even includes his real family.
☮ - friendship headcanon
If you ask Loki, most of the time he’ll say he didn’t really have friends growing up in Asgard. He had Thor, and he had Thor’s friends, but none that were solely his own. That isn’t exactly true. Out of all the people who comprised the group that Thor and Loki ran with, Fandral was truly Loki’s friend.
♦ - quirks/hobbies headcanon
Loki has always had a tendency to hang back, to watch in silence and survey situations from just out of the immediate line of fire. This has been true for most all of his life. He has, however, a very special kind of hanging back in silence that is reserved for certain dealings with Steve alone: the Captain is a public figure, one with admirers of all sorts, and he can’t blame anyone for fan or fancy. Neither will he make Steve’s life any harder than it must be, which leads to the Ringmaster very pointedly looking away from any situation that involves those who might be just a little too enthusiastic for his liking, refusing to comment for that very same reason.
☯ - likes/dislikes headcanon
While the god has a tendency to hover in the background and take in as much as he can, that does not mean he wants to sit at home away from the action altogether. The stress of not knowing if his boys are safe is an experience unique unto itself, especially when they’re both the type to forget that they can, in fact, be killed.
▼ - childhood headcanon
When Loki and Thor were still small enough to share a room and a bed, whenever he woke from a nightmare, he would carefully tuck himself as close to Thor as he could without waking his big brother.
♒ - cooking/food headcanon
In the battle between sweet and savory, Loki will choose sweet every time.
☼ - appearance headcanon
There is always at least one piece of jewelry on Loki at all times. His normal collection includes rings, necklaces, ear cuffs, wrist cuffs—and a piece of body jewelry or two that aren’t often visible.
ൠ - random headcanon
Loki makes a fucking miserable pregnant woman.
◉ - Any other question of your choosing
There is a small collection of Norse lullabies that Loki has never forgotten. Sometimes he will hum them to himself, but he uses them mostly to calm the circus animals. Once El comes along, he’ll sing them to Elric too.