muse A is a human, muse B is a selkie- who have no idea of each other's existence until one fateful night at a restaurant.
"Oops, you dropped your coat!", muse A cheerfully picked up the soft fur coat from the ground, carefully draping it back over the persons chair. making unintentional eye contact with muse B, who is remarkably attractive. muse B simply wide eyed and stunned in those moments.
as muse A then shuffled back to their table after an awkward wave.

the following day, muse B approaches muse A shyly and offered a box with a ring inside of it.
muse A blushes, confused, "I-isn't this... an engagement ring?"

muse B nods, "well... we should at least get married by human customs... as well"

muse A pauses, "what-"