Soulmate au where instead of having the first thing they say tattooed on each other, they instead have a random sentence tattooed that that person will say around them. And so you know it’s not just a coincidence when they say it, the tattoo stings and fades away.
Just imagine all the scenarios.
Best friends just hanging out like usual and Person A says something like “I wonder if fish get thirsty?” and Bam the tattoo on Person B disappears and they just scream.
Person A going out with someone and just waiting for them someday to say the sentence they have , but then the barista at Starbucks says it instead.
Person A really really really hates person B but then that idiot has to go and say the sentence, and how can they be their soulmate they’re stupid and loud and too good looking for their own good. Like who needs that good of lips?