Answer: The photo just implies that the girl has dark lips

The image uses a humorous analogy to suggest that women's frequency of masturbation is a closely guarded secret. It compares the appearance of a lychee fruit with and without its seed to represent different levels of sexual activity.

The image implies that women who masturbate "once per week" prefer to keep their lychee seeds intact, while those who do it "three times a week" are more likely to remove the seeds.

This humorous comparison plays on the idea that women's sexuality is often seen as a mystery or something to be ashamed of, and that their masturbation habits are particularly private.