What if.. they interact with each other?

Natsu: Hey, boy? Is this your one of your magic rock?
Ash: It's a Pokeball.. Now gimme my hat back.. -_-

Lucy: So, how long you two have been dating?
Serena: W-wait! Why are you asking me that?!

Pikachu: Pika! 
Happy: It's my fish!!

Pokemon (c) Pokémon Company
Fairy Tail (c) Hiro Mashima