Sexual partners live together and sleep together, or men and women who don't live together and don't meet often but have sex when they meet.
One-night stand is having sex in bed, leaving after dawn, only being a man and a woman for one night, without money and responsibility.
Whoosh ~ ~ ~
Lovers-dangerous, expensive, one-night stand-excitement, danger, sexual partners-are highly respected by individuals, have independent living space, have feelings to talk about, are safe, do not involve money, and release human nature. Social morality is to accept the role of sexual partners.
Answer, call it a day!