Thanks to another certain user I have found a new character that shows her belly alot! Her name is Lola and she comes out in a cartoon show called "The Tofus". In this show she shows her bely and belly button ALOT! Almost every outfit she wears shows her belly and belly button (except her pijamas and swimsuit).
The only episode I saw that DIDNT show her belly at all was one episode where she wore some old dress. You never see her belly in that episode.
But aside from that just about every episode in this show has her showing her belly! And if not her bely then just her belly button.
There was even an episode where her own nemesis also showed her belly (which I think is the only time she shows it as far as I know). And the last two pictures at the bottom are that of her friend showing her own belly.
I love this girl character now. I dont know what goes through her head when wearing these outfit.