User blog comment:Omega natsu2/Chapter 371: Tartarus Arc, Part 2: Song Of The Heavenly Dragon, Predictions./@comment-198.142.230.136-20140210052414/@comment-7418318-20140210233405

Did you by any chance read the Fanfict Phantom Girl? If I remember correctly (which is harder than you might think since it's currently over 200k words long) there Gajeel ate some of Aries' wool and temporarily had his metal scales turned pink along with some magical abilities of hers.

Whether it was this story or another, it was quite the hilarious read. :D