@Teruru Nah they definitely can't and shouldn't ever look like that, the artist made a booboo there.
Like the angle is okay with how gravity works but the attach point is all wrong so they're too far apart thus and... weird.
Only way it could really look like that is if underneath her clothes there, her torso got sliced down the middle, bone and all, and then both sides fell backwards and apart...
@Fari This just isn't true. I could post several examples of them looking like this, but I don't know if porn links would get me banned. Look up pictures of D-cup+ girls laying on their backs and you're bound to find several like this.