The innie vs outie is a no lose scenario. I love all shapes of navels. I love Kelly Ripa’s Sexy outie. My wife has a little innie and inside is a small skin tag that you can feel with your fingertip. It turns me on so much.
Love belly buttons for tickling, but not exclusively, and the tummies don't have to be flat for me to love them.
It's all good.
Who else loves flat tummies and cute belly buttons?