If I see this correctly, that's the image of a beautiful woman with an abdomen needing small chocolates to be quietly, carefully eaten off of with soft moisten lips while gently holding in place the arch of the back as if a delicately sculpted platter of love. breakfast is served.
I was weirded out by her waist at first, too, but then I realized it's just that she's horizontal at the moment, so her stomach is flattening out. I think if she were sitting up she'd look normal. It's just the angle that makes it look unnatural since the curve of her butt is bigger due to how she's holding herself. Cause she doesn't look like she's too skinny otherwise.