What are those brown rings on their boobs?

Unbreakable said:

What are those brown rings on their boobs?

That's the imprint boobs makes when it's pushed up against clear glass.

eeec said:

That's the imprint boobs makes when it's pushed up against clear glass.

Then it seems weird you can clearly see the covered nipples even though the breasts are pressed against the glass, maybe it's just me not understanding boob physics.

Unbreakable said:

Then it seems weird you can clearly see the covered nipples even though the breasts are pressed against the glass, maybe it's just me not understanding boob physics.

Boob physics in anime can be over-exaggerated often honestly, but that's what makes it great haha.