中国

Because next time you have sex with anyone in Xian, prostitute or not, you will be tortured and killed. This is because there is very limited form of freedom of speech nor openness to sexual matters in that country. Did you know that, until very recently, people in mainland needed a permission FROM THEIR BOSSES OF THEIR COMPANY to marry a loved one?

Let me warn you, Japanese or not, just don't visit China. It's too dangerous with its students excited like horny cow. These Maoist Nazi Jugent students can easily turn a mere lewd show with fake genitalia conducted by stupid foreign students into a full-scale anti-Chinese humiliation by their nationwide Web-spin. Next time it's YOUR turn to be set up into their Gulag prison.