According to the medical test results, men are more likely to become erect and reach orgasm, after which they suddenly drop vertically into a sexually unresponsive period. Women, on the other hand, require a longer period of foreplay to increase their arousal, resulting in a delayed onset of orgasm. Usually, men ejaculate first, causing intercourse to end hastily. Recognizing this, the Su Nv reminded Emperor Huang when engaging in intercourse...