I'm looking for a specific fic and hoping that someone can help me. It's Tony/Bucky. Your soul mates first words appear on your skin. tony recognises the words Bucky says but then refuses to speak directly to Bucky. Eventually when he is distracted in the workshop he asks Bucky to pass him a screwdriver which turn out to be the words Bucky has.
I hope that this rings a bell for someone? Thank you in advance.