What is sexual intercourse?

Sexual Intercourse

Sexual intercourse, also known as copulation or coitus, is commonly defined as the insertion of a male's penis into a female's vagina for the purposes of sexual pleasure, reproduction, or both. The term may also describe other sexual penetrative acts, such as anal sex, oral sex or fingering, or use of a strap-on dildo, which can be practiced by straight and gay or lesbian pairings, or multiple partners.

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Some articles on sexual intercourse:

Rationale of Statutory Rape Laws
... is legally incapable of consenting to sexual intercourse ... Thus, the law assumes, even if he or she willingly engages in sexual intercourse, the sex is not consensual ... Because forced sexual intercourse with a minor is considered to be a particularly heinous form of rape, these laws relieve the prosecution of the burden to prove lack of consent ...
LGBT Rights In Liberia - Law Regarding Same-sex Sexual Activity
... Subchapter D (relating to sexual offences) of Chapter 14 of the Penal Law of Liberia criminalizes voluntary sodomy, as follows Section 14.74 ... A person who engages in deviate sexual intercourse under circumstance not stated in Section 14.72 or 14.73 has committed a first degree misdemeanor ... Definitions relating to sections on sexual crimes against the person ...
Laws Regarding Incest - Asia - Malaysia
... The law defines incest as sexual intercourse with another person whose relationship to him or her is such that he or she is not permitted, under the law, religion, custom or usage applicable to him ... charge if the person did not know the relationship was not permitted or if the sexual intercourse was done without his or her consent ... Malaysian law also considers sexual intercourse with the stepfamily of an accused to be incestuous ...
Mathura Rape Case
... It was stated that because Mathura was 'habituated to sexual intercourse,' her consent was voluntary under the circumstances only sexual intercourse could be proved and not rape ... threats could not be construed as consent or willing sexual intercourse ... Act, which states that if the victim says that she did not consent to the sexual intercourse, the Court shall presume that she did not consent ...
Sexual Intercourse - In Other Animals
... Many animals which live in the water use external fertilization, whereas internal fertilization may have developed from a need to maintain gametes in a liquid medium in the Late Ordovician epoch ... Internal fertilization with many vertebrates (such as reptiles, some fish, and most birds) occur via cloacal copulation (see also hemipenis), while mammals copulate vaginally, and many basal vertebrates reproduce sexually with external fertilization ...

Famous quotes containing the word intercourse:

    I am not of the opinion generally entertained in this country [England], that man lives by Greek and Latin alone; that is, by knowing a great many words of two dead languages, which nobody living knows perfectly, and which are of no use in the common intercourse of life. Useful knowledge, in my opinion, consists of modern languages, history, and geography; some Latin may be thrown into the bargain, in compliance with custom, and for closet amusement.
    Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)