User blog comment:Ultimate Nova/HIro Mashima's new one-shot:Hoshigami no Satsuki (Starbiter Satsuki)/@comment-25405856-20140918191103

What if Erza could requip the Fire Dragon's Roar sword? Just imagine Natsu's reaction xD

But yeah the Bare Naked Nymph sword is just another one of Mashima's excuses for fanservice.