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What is All of the following are contraindications of diaphragm usage except and explain in detail?
Multiple sex partners (MSP) is the measure and incidence of engaging in sexual activities with two or more people within a specific time period. Sexual activity with MSP can happen simultaneously or serially. 
MSP includes sexual activity between people of a different gender or the same gender.
MSP can also mean that one person may have a long-term relationship or relationships, and when the second relationship begins, the person can be said to have multiple sex partners.
Another term, polyamorous, is a behaviour and not a measure describing multiple romantically sexually or romantically committed relationships at the same time.