Soulmate au where eveyone is born with a soulmark, like a tattoo that their soulmate will also bear, on the same place on their bodies.

An au where you physically can't feel pain until you and your soulmate makes skin contact. Based on a prompt I saw on tumblr xD

An au where seulrene are youtubers, get ready for some diabetes inducing fluff, because oh boy, you're in for one hell of a fic. "It takes a very special kind of idiot to pull off what those two did."

An au where when your soulmate is eating something you can taste it on your lips, just slightly. And maybe feel it on your lips too, like the powder of a cinnamon donut, except you can’t it away, so you’re just stuck with it like ‘damn you , your goddamn lips! This is annoying!’  Based on a prompt I saw on tumblr xD