Why do foreigners date Chinese women?

Many foreigners in Beijing have Chinese girlfriends or wives. Why do they date Chinese women? Sexual need, curiosity, or love?

To my surprise, a female American teacher told me that many Americans like dating Asian women because there is a lot of pornography sold in the US in which Asian actresses usually appear submissive and would like to do what men told them to.

I have to say if a woman could not judge whether a man really likes her or just her body, then she has to learn from experience. It could happen to a Chinese man too, not just for foreigners.