Episode 7: Animal Instinct
In the Fairy Tail Guild, Natsu is walking to the hall when suddenly a small flying saucer appears and the beam hit Natsu and faints.
Few hours later...
HAPPY: Hey, Natsu. Are you okay?
NATSU: I am fine. What happened? And how come you become big?
HAPPY: And how come you become a dog?
Natsu looks at the bucket of water and he freaks out and he howls.
HAPPY: It's not bad to become a dog.
NATSU (YELLS): ARE YOU FREAKING CRAZY?! I WILL EAT JUNK FOOD FOR THE REST OF MY LIFE AND DRINKING THE TOILET?!
HAPPY: Unsanitary to be a dog.
NATSU: And much worse? (sees Happy and he grins) How many lives do you have?
Natsu howls and Natsu chases Happy and he flies while Natsu the dog is chasing him.
HAPPY: HEEEEEEEEEEEEELP! A MAD DOG IS TRYING TO KILL ME!
NATSU: When I get the hands of you, I will send you to Exceed Heaven!
GRAY: What's going on here?
And Natsu bites Gray's balls, Gray feels nothing and few seconds later, he screams in pain.