User blog comment:Stone Roger/Natsu and Zeref have somekind of relation?/@comment-68.231.22.48-20140406041908

Ok so if you look at there hair the only difference on is down and black the others up and pink, there facial features are the same and p.s about the whole natsu might be like 100 years old cause he could pass theta barrer is probably cause he was a dragon slayer and i think the only one at the time in the build gajeel wasn't there i think, but dragon slayer magic is thousand of years old so maybe thats why. any was back to wat i was saying, there kinda simialry so theory one is there twins or just brothers.

2nd is that he killed natsu parents and left him in a forest when igneel found him and took him in.

3rd is thats his real father cause they do look alike, and he's crying cause he had to give him up cause he's powers but this is just what i think