User blog comment:Sargenttacos115/Natsu and Gajeel age Theory/@comment-67.188.227.235-20150103090805

Gray is 18 and Lucy is 17 so shouldn't Natsu be around that age? And Gajeel could be 18 too because Elfman look like an Adult but he's 18 so I think Natsu might be 17 or 18 :)