#by the way intertwining tails is a common symbol of affection for sea monsters and sirens

[that-foul-legacy-lover]

omg what about siren! reader and sea monster/mermaid! foul legacy?

i like that theory that sirens are beautiful because they need to lure sailors while mermaids are monstrous as they want to be left alone. i can imagine legacy hunting a whale for sport and then presenting it to reader as a courtship offering. legacy is intimidated by the beautiful siren as they regard the gift and then swim away to their cove and legacy thinks their offer has been rejected. but then the next day, reader gives legacy a human they hunted. i can also imagine they give each other gifts from sunken ships because they think "ooh shiny...perfect for mate!"

ohhh my goodness, it seems that great minds think alike because this is wonderful and adorable!!!!

sirens and sea monsters are usually quite distant from each other, not antagonistic but also not close enough to justify stopping in the other species' territory for a rest. it's entirely by chance that you and Foul Legacy happen to live near each other, generally staying out of the way until Legacy catches the tail end of your haunting yet beautiful song, his crystalline eye widening as he tilts his head to listen. there's screaming and a horrible crunching sound when the melody ends, a nearby ship ramming into sharp rocks and crumbling to the seafloor as you swim after it with an eerie, gleeful laugh. Legacy's heart flutters as his scaled tail waves behind him, and he quickly turns and swims off to hunt down the perfect courting gift, just for you

he's incredibly nervous when he ventures into your territory, a dead whale clutched in his claws. you perk up when you see the sea monster swimming towards you, stopping a few meters away and gingerly pushing the whale towards you, letting out a meek chirp that doesn't match his bestial appearance as you inspect the gift carefully. his wing-like fins droop when you flick your tail and swim back into the grotto you call your home, only to flutter in surprise when you return, proudly dragging a drowned human behind you to present to him. Legacy trills in fascination, swimming in circles around you as you also show him the various treasures you've collected from sunken ships and drape a glittery necklace over his horns. he purrs, claws twitching to hold you and hug you close, but he settles for tentatively twining his tail with yours in a silent request. his purrs grow louder when you return the gesture, accepting his courtship, and Legacy's bioluminescence glows brighter out of sheer delight