User blog comment:FairyRaven/Fairy Tail Chapter 453: A Father's Job, Review and Commentary/@comment-3285005-20150919114837/@comment-7418318-20150919200054

I doubt it and I would actually be upset if Yukino just discovered it by herself.

Lucy had to go through hell, sacrifice Aquarius' key and get a direct intervention from the CSK to learn Star Dress. If Yukino just learned it by herself it'd make what Lucy had to go through seem pointsless.

If she's taught by Lucy I could live with it, but her just discovering it by herself would suck massively to me.