性交

性交	xìng jiāo	sexual intercourse
性	xìng	nature / character / property / quality / attribute / sexuality / sex / gender / suffix forming adjective from verb / suffix forming noun from adjective, corresponding to -ness or -ity / essence / CL:个
交	jiāo	to hand over; to deliver; to pay (money); to turn over / to make friends / (of lines) to intersect / variant of 跤