The model is MmeltyMelu.

Wearing a blue bikini, she plays with black paint. After coating herself completely in black, she decides to take off her swimsuit, wanting to be free of it.

Once she's entirely covered in black, she bounces on a balance ball this is the sight we've been waiting to see. Then, even her mouth is dyed black.

At one point, she complained of pain when some paint got into her eyes, so we rinsed it off. Since she mentioned she enjoys water play, we gave her a long shower, letting black paint pour down over her head.