这玩意也有教程？

Base +1

我去，他居然真的在教我们怎么画本子？

Base +5

这不是教你怎么画，而是anal sex的科普和教程

Base +6

Until about twenty years ago, anal sex was thought of as a "special sexual act" enjoyed only by a few enthusiasts. However, nowadays, anal sex is increasingly being experienced not only by models in adult videos and magazines, but also by ordinary couples who are not enthusiasts. Anal sex, once considered heretical, is now being recognized as a normal sexual act.

However, there are many women who have tried anal sex but find it painful or unpleasant, and are not comfortable with it. This is likely due in large part to men's lack of knowledge about anal sex. Since anal sex is done through anus, which is not originally intended for sexual intercourse, it is necessary to have knowledge about how to enjoy it comfortably.

Base +8