Blood in the Water

NOT MINE!!! Well, I wrote this, but the characters all belong to the EXTERMLY TALENTED YUURIVOICE!!!! Which by the way, hope to god he never sees this cause I'd die. I love him too much for him to see my cringe AU Fiction of his series Bittersweet. Now that legal problems are sorted (which I will link the series in one of the parts) I can get on to the main event, the description.
Alphonse x reader x Seth (also I changed the pronouns originally it was a female reader, but now it's gender neutral so everyone come get the tea!)

Derek, the name stuck like gum on your shoe. You knew someone with that name, but he was long gone. Wasn't he?