Au. What if Gray was never found by Ur and Lyon but instead by an ice dragon? Frost the Ice Dragon finds Gray after Deliora's attack and takes him in and teaches him Ice Dragon Slayer magic. On July 7, X777 Frost disappears like the other dragons and Gray is alone. Gray wanders around and eventually finds Fairy Tail...
Natsu Dragion comes to the Fairy Tail Kingdom for unknown reason, instantly becoming Prince Gray Fullbuster's servant. Gray, surprisingly being attracted to the pink haired boy, and Natsu become lovers in secret. But when King Igneel Dragneel from an unknown Kingdom sends a servant to find his lost son Prince Natsu Dr...
AU. What if when Acnologia destroyed Tenrou Island during the S-Class trials Zeref had saved Natsu before Mavis cast Fairy Sphere and bought him to Alvarez, where Natsu slept in a coma. Seven years later Natsu awakens but doesn't remember anything, but he still remembers a girl with blonde hair and warm brown eyes and...