User blog comment:IamJakuhoRaikoben/Chapter 493: The White Dragneel, Review./@comment-74.43.16.57-20160711180910/@comment-4829046-20160711183128

One word: Fan service.

To be fair, the same can be done for(and is done for quite a few) the males, but you don't get as much reaction from the majority of the viewer base(i.e. Japan's shounen audience) for erotically portrayed males as much as females. :P