Soul marks

Soul marks are one of those rare things that barely never happens in the supernatural world anymore. They appear when the soulmates are 16, and it takes the form of their soulmate's name in their handwriting.

Hope finds the beautiful letters of Josie's name tattooed on her skin the morning of her 16th birthday and she kinda freaks out.

Or; the soulmate au that was requested on tumblr.