Slow to heat and slow to cool: Water

"As historian Douglas Wile describes it in his book Art of the Bedchamber: The Chinese Sexual Yoga Classics, "At the very least, a man must delay his climax to adjust for difference in arousal time between 'fire and water' and to ensure the woman's full satisfaction." Wile elucidates the Taoist philosophy further: "The woman was said to love slowness (hsu) and duration (chiu), and abhor haste (chi) and violance (pao)... The woman expresses her desire through sounds (yin), movements (tung), and signs (cheng or tao). In her sexual responses she is compared to the element water, 'slow to heat and slow to cool.'... Prolonged foreplay is always presented as the precondition for orgasm.""

Aqui