A sex position is a position of the body that an sex or couple position may use for sexual intercourse or other sexual activities. Sexual acts are generally described by the positions the participants adopt in order to perform those acts.
Though sexual intercourse generally position penetration of the body of one person by another, sex positions commonly involve penetrative or non-penetrative sexual activities. Three categories of sexual intercourse are commonly practiced: The act may also involve anilingus.
There are numerous sex positions that participants may adopt in any of these types of sexual intercourse or acts; some authors have argued sex the number of sex positions is essentially limitless. Sex manuals usually present a guide to square positions. Sex manuals have a long history. In the Graeco-Roman era, a sex manual was written by Philaenis of Samospossibly a hetaira courtesan of the Hellenistic period 3rd—1st century BC.
Sex position - Wikiwand
Different sex positions result in differences in square depth of sexual penetration and the angle of penetration. Many attempts have been made to categorize sex positions. Alfred Kinsey categorized six primary positions,  The earliest known European medieval text dedicated to sexual positions is the Speculum al foderisometimes known as "The Mirror of Coitus" or literally [ according to whom?