In Norse mythology Loki is the trickster God. He is neither evil nor good. He is the son of the giants Farbauti and Laufey and has two brothers, Helblinde and Byleistr. I don’t know how he did it but he is also the mother of Sleipnir and is married to Sigyn with whom he had two other children, Narvi and Vali. He was also married to the giantess, Angrboda, and had three children with her, Hel, Fenrir Wolf and The Midgard Serpent.
He lives in Asgard although, as a giant he is originally from Jotunheim (see my previous blogs about Norse mythology for more information (1)). In Asgard he is generally a trickster/trouble maker, especially for the other Gods and Goddesses. He has a habit of causing problems for people and causing them to fall in to embarrassing situations and then he comes along, after pranking them, and saves them so that he looks like the hero.
Loki is able to shape shift into the form of almost any living being and in Norse mythology appears at various times in the form of a salmon, a mare, a seal, a fly, and if I remember correctly, even as an old woman.
The Gods finally tired of Loki’s pranks and so they banished him to a cave where he is guarded by a venomous snake. The snake rests above his head dripping poison down however Loki’s loving wife, Sigyn, stays in the cave with Loki and holds a bowl over his head to catch the poison.
(1) Here are links to my blog series on Norse cosmology:
I'm Dr. Dave, a modern druid. I lived and worked in Bolivia and Peru for over six years, where I and was trained by Andean Shamans, and today practice modern druidism and contemporary shamanism.