Magic-users can have the ability to summon creatures of their world (or from another plane of existence) to their location and bend their will to serve.
Friends: *Watches Gray strip* OMG! Look how hott he looks! Me: -_-' all he did was strip... *Sees Natsu , who is smiling* KAWAII~! For me, it's all about Natsu, quite frankly I can't stand guys who strip...