What was even the point of that? I know Irene wanted to have a human body, and she certainly wasn't expecting Wendy to enchant herself into her body, but if she wanted to she could have easily destroyed Wendy and Erza and move on. But no, for the sake of plot or something, she transfers to a WAAAAAAAYYYY weaker body, allowing Wendy to take over a much more powerful body, causing this whole body-switching thing to be over in the span of a chapter. That really made this whole thing seem like a waste of time.
And of course, Mashima just had to toss in some boob jokes. I guess that's inevitable when a flat-chested character and a big-breasted character switch bodies........
