My memory of this fic is really fuzzy...

[infected_wound]

But I seem to remember it having members of the Weiss acquiring special powers and Omi getting the short end of the stick and, as a result, having huge problems maintaining a relationship. One of them (Ken?) might have been given pyrokinesis...

I'm not sure if it was Tritorella's fic or something else. I'm reading through bits of the New World Order series by Aoi and it doesn't really seem to be that...

Thanks for the help ;_;