The bathroom. It's the best time of the day that any Japanese person would love, as it promises the ultimate relaxation. A bathtub at just the right temperature with shimmering steam. Men and women in an intimate relationship bathe completely naked, and the heat arouses sexual desire. Their moist, lustrous skin touches each other, and the friction of their wet penises and private parts brings pleasure that can't be experienced in bed. This four-hour bath time is filled with mixed bathing sex, where the couple lose themselves in wild ecstasy.