The models are Yuyuko and Lulu.

Today, the two close friends appear together in bikinis. They paint each other with black paint, covering themselves completely, and then take turns tickling one another while fully covered in black.

First, Yuyuko is painted. The paint is applied slowly, almost like a massage. Her face is dipped into a bucket. Yuyuko is tickled first.

Next, Lulu is painted. She is tickled while her face remains unpainted at first, and then her face is also dipped into the bucket.

After both of them transform into completely black figures, they continue tickling each other.

At the end, paint is poured over both of them to finish.