User blog comment:Miskos3/Fairy Tail 525: Why Did the Emperor Never Love His Child?, Review/@comment-5303512-20170304145630/@comment-7418318-20170304211448

Yeah... no.

In Fairy Tail we've seen naked 13 year olds and two 17something year old hugging each other while naked. To say they didn't allow Mashima to get Zeref and Mavis out of their clothes makes no sense in such a context.

Besides... just how long did it take Zeref to carry Mavis to the guild anyway? I really can't imagine Precht sensing the life of a "child" that only consists of a couple dozen cells, which would already be a generous estimate for a couple of hours of pregnancy.