Siren (A BillFord AU)

Twenty-year-old Bill has lived in Gravity Fall's Lake for as long as he can remember, eating those that hear his song and devouring the fish that cross his path. But it's difficult finding suitable humans to eat, the ones in Gravity Falls don't really hear his song, they're either too dumb or too distracted to listen. So, when a late night boat party leads to more possible tasty morsels, he takes his chance. But the only one to fall into the water is none other than Stanford Pines himself.