Just because you have a little limp in your step doesn't mean you can't fly. Kiki certainly knows this, and she's not afraid of puffing herself up as big and lightweight as possible to achieve her dreams!
(Essentially, I haven't drawn Kiki in a while, so I decided to rectify that with a simple drawing of her with a really bloated belly. As for Izar, I imagine he's keeping the house safe while she's out enjoying herself!