The question(s) can be viewed here: http://askaboutpiercesfamily.tumblr.com/post/95056609274/finally-another-one-down-both-of-the-questions
Ultimately it asked how they get along.

My response:

"Finally another one down!

Both of the questions were similar, so I combined them.

They aren’t as young kids here, but I can still explain xD

As young kids they didn’t get along well. Hunter was jealous a lot of Iris because Pierce gave her a lot of attention, so he’d attack her sometimes. It was like that up until puberty. A little after that they get along pretty well.

Iris learned very early on why she doesn’t have wings, and it’s because of her deformity, and that she’s like her mom with not having them. Because her mom is the same in that way, it doesn’t upset her AS much."

Character development won on the poll thing, so that's what I am doin. ;P