Thor and Aquaman are not related. They are fictional characters from completely separate fictional universes with different creators and publishers. Thor is a Marvel Comics character based on Norse mythology, created by Stan Lee and Jack Kirby, who wields the hammer Mjolnir and is the god of thunder in the Marvel Universe. Aquaman is a DC Comics character created by Paul Norris and Mort Weisinger, a superhero with the ability to communicate with sea life and rule the underwater kingdom of Atlantis. While both are powerful heroes associated with water and mythology in their respective universes, they exist in entirely different fictional worlds with no connection to each other. They have never appeared together in official comics, films, or other canonical media, as Marvel and DC are competing publishers that do not share characters or storylines. Any crossover between them would be unofficial fan fiction or speculative imagination rather than part of established canon.