1X. 微黄:13+,generally sexually offensive.
2X. 黄 18+,sexual activity involved, but sexual organs are not exposed.
3X. 金黄:21+ sexual intercourse involved, organs exposed.
4X. 很黄很暴力 (23+ and Married):Sexually misleading, abnormal sexual
activity involved, organs are exposed without any 马赛克(简称无码),
crystal clear and vivid, extremely hardcored, and one will harden like a rock
immediately if one dosn’ t have physical and psychological disorders.