MikeBrooklyn
I can kinda try to answer that too. When someone is wearing a crop top, they are allowing, and importantly, intentionally showing you their stomach, and their belly button. But when someone is lifting their arm up for example, and their belly button accidentally starts showing, it’s seeing them in a vulnerable position. They don’t know their belly button is showing, but you do. It’s always about seeing their belly button in a different position, like it stretched out.
So maybe, yes, you’ve seen an actress’ belly button before, but when it’s accidental, in that moment in time, they don’t necessarily want to be showing it to you. I kinda feel the same when a someone intentionally lifts their shirt up, it’s them allowing you to see their stomach, but when that shirt is down, they’re not.