Soulbond

LearethGFS: Heehee... he's my soulbond.... he runs the place occasionally.

Whenever I'm reading a book or watching a movie, I'm there in my imagination, usually as a small (6-ish feet long) dragon talking to the characters, urging them to do what I want, flaming or growling at their enemies, etc. Reminds me of the role my spirit guide/daemon/soulbond/imaginary friend/whatever-the-hell-he-is, Phantos, plays in my life. Except that I directly talk to Phantos, whereas the characters never really notice me.

6 fans (11%) did not like to specify a genre but offered an alternative view of “common tropes” in fan fiction, such as: “The tropier, the better! Werewolves or A/B/O or soulbonds or time travel or coffeeshop AUs. […]

This is amplified by the common use in a/b/o of the soulmate and soulbond tropes, where two characters are written as destined for each other on a biological level, resulting in near-irresistible mutual attraction and a special connection.

And that's not even getting into some of slash's more science-fictional tropes: soulbonds and telepathy, interspecies relationships; male pregnancy.