Kenya was given by a guard to deliver mail to another guard. This never happened, but Kenya became a valuble member of Aooooo's team. He was put in the day care for some time, and it became the primary goal to retreive him. He was eventually retrieved.
Later in Blackthorn City, Kenya was released, and there was a lot of rioting in the chat. Many believe that she just came to help stop Team Rocket, and now he's off to deliver the mail to the guard.