Penis In Vagina

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This article is primarily about humans. For other animals, see Animal sexual behaviour . For other uses, see Sex (disambiguation) .
"Copulation" redirects here. For copulation among other animals, see Copulation (zoology) .


^ Jump up to: a b Sexual intercourse most commonly means penile–vaginal penetration for sexual pleasure or sexual reproduction; dictionary sources state that it especially means this, and scholarly sources over the years agree. See, for example;
"Sexual intercourse" . Dictionary.com . Retrieved November 22, 2019 .
"Sexual intercourse" . Merriam-Webster . Retrieved December 5, 2014 .
"Sexual intercourse" . Macmillandictionary.com . Retrieved May 9, 2019 .
Richard M. Lerner ; Laurence Steinberg (2004). Handbook of Adolescent Psychology . John Wiley & Sons . pp. 193–196. ISBN 978-0-471-69044-3 . Retrieved April 29, 2013 . When researchers use the term sex , they nearly always mean sexual intercourse – more specifically, penile–vaginal intercourse. [...] The widespread, unquestioned equation of penile–vaginal intercourse with sex reflects a failure to examine systematically 'whether the respondent's understanding of the question matches what the researcher had in mind.'
Fedwa Malti-Douglas (2007). Encyclopedia of Sex and Gender: A-C . Macmillan Reference . p. 308. ISBN 978-0-02-865961-9 . Sexual intercourse. [T]he term coitus indicates a specific act of sexual intercourse that also is known as coition or copulation. This 'coming together' is generally understood in heteronormative terms as the penetration of a woman's vagina by a man's penis.
Irving B. Weiner; W. Edward Craighead (2010). The Corsini Encyclopedia of Psychology . 4 . John Wiley & Sons . p. 1577. ISBN 978-0-470-17023-6 . Retrieved August 21, 2013 . Human sexual intercourse, or coitus, is one of the most common sexual outlets among adults. Sexual intercourse generally refers to penile penetration of the vagina.
Clint E. Bruess; Elizabeth Schroeder (2013). Sexuality Education Theory and Practice . Jones & Bartlett Publishers . p. 152. ISBN 978-1-4496-4928-9 . Retrieved December 5, 2014 . In many cultures around the world, vaginal sex is what is usually implied when people refer to 'having sex' or 'sexual intercourse.' It is the most frequently studied behavior and is often the focus of sexuality education programming for youth.
Cecie Starr; Beverly McMillan (2015). Human Biology . Cengage Learning . p. 339. ISBN 978-1-305-44594-9 . Retrieved December 27, 2017 . Coitus and copulation are both technical terms for sexual intercourse. The male sex act involves an erection, in which the limp penis stiffens and lengthens. It also involves ejaculation, the forceful expulsion of semen into the urethra and out from the penis. [...] During coitus, pelvic thrusts stimulate the penis as well as the female's clitoris and vaginal wall. The stimulation triggers rhythmic, involuntary contractions in smooth muscle in the male reproductive tract, especially the vas deferens and the prostate. The contractions rapidly force sperm out of each epididymis. They also force the contents of seminal vesicles and the prostate gland into the urethra. The resulting mixture, semen, is ejaculated into the vagina.
Janell L. Carroll (2018). Sexuality Now: Embracing Diversity . Cengage Learning . p. 289. ISBN 978-1-337-67206-1 . Retrieved November 22, 2019 . Vaginal intercourse (also referred to as sexual intercourse) involves inserting the penis into the vagina.

^ Jump up to: a b c Alters S (2012). Essential Concepts for Healthy Living . Jones & Bartlett Publishers . pp. 180–181. ISBN 978-1-4496-3062-1 . Most heterosexuals are familiar with the notion of 'having sex' or sexual intercourse as vaginal sex, the insertion of a penis into a vagina. Vaginal sex, or coitus, is the most common and popular form of intimate sexual activity between partners.

^ Carroll JL (2018). Sexuality Now: Embracing Diversity . Cengage Learning . p. 289. ISBN 978-1-337-67206-1 . Vaginal intercourse (also referred to as sexual intercourse) involves inserting the penis into the vagina.

^ Jump up to: a b c "Sexual Intercourse" . Discovery.com . Archived from the original on August 22, 2008 . Retrieved January 12, 2008 .

^ Rathus SA, Nevid JS, Rathus LF (2010). Human Sexuality in a World of Diversity . Allyn & Bacon . p. 251. ISBN 978-0-205-78606-0 .

^ Jump up to: a b c d Freberg L (2009). Discovering Biological Psychology . Cengage Learning . pp. 308–310. ISBN 978-0-547-17779-3 .

^ Jump up to: a b c d "Defining sexual health: Report of a technical consultation on sexual health" (PDF) . World Health Organization . January 2002. p. 4 . Retrieved September 5, 2012 . In English, the term 'sex' is often used to mean 'sexual activity' and can cover a range of behaviours. Other languages and cultures use different terms, with slightly different meanings.

^
"Sexual Intercourse" . Discovery.com . Archived from the original on August 22, 2008 . Retrieved January 12, 2008 .
Nancy W. Denney; David Quadagno (2008). Human Sexuality . Mosby-Year Book . p. 273. ISBN 978-0-8016-6374-1 . Although the term intercourse is usually used to refer to the insertion of the penis into the vagina, it is also used to refer to oral intercourse or anal intercourse in which the penis is inserted into the mouth or the anus, respectively.

^
Ann O'Leary (2002). Beyond Condoms: Alternative Approaches to HIV Prevention . Springer . p. 155. ISBN 978-0-306-46731-8 .
Dianne Hales (2015). An Invitation to Health: Live It Now! Brief Edition (3rd ed.). Cengage Learning . p. 251. ISBN 978-1-305-44595-6 .

^ Jump up to: a b c Kahn AP, Fawcett J (2008). The Encyclopedia of Mental Health . Infobase Publishing . p. 111. ISBN 978-0-8160-6454-0 .

^ Jump up to: a b c d e Hales D (2008). An Invitation to Health Brief 2010–2011 . Cengage Learning . pp. 269–271. ISBN 978-0-495-39192-0 .

^ Jump up to: a b Kumar B, Gupta S (2014). Sexually Transmitted Infections . Elsevier Health Sciences . p. 93. ISBN 978-81-312-2978-1 .

^ Jump up to: a b c See page 11 onwards and pages 47–49 for views on what constitutes virginity loss and therefore sexual intercourse or other sexual activity; source discusses how gay and lesbian individuals define virginity loss, and how the majority of researchers and heterosexuals define virginity loss/"technical virginity" by whether a person has engaged in penile–vaginal sex. Carpenter LM (2005). Virginity Lost: An Intimate Portrait of First Sexual Experiences . NYU Press . pp. 295 pages. ISBN 978-0-8147-1652-6 .

^ Strong B, DeVault C, Cohen TF (2010). The Marriage and Family Experience: Intimate Relationship in a Changing Society . Cengage Learning . p. 186. ISBN 978-0-534-62425-5 . Retrieved October 8, 2011 . Most people agree that we maintain virginity as long as we refrain from sexual (vaginal) intercourse. But occasionally we hear people speak of 'technical virginity' [...] Data indicate that 'a very significant proportion of teens ha[ve] had experience with oral sex, even if they haven't had sexual intercourse, and may think of themselves as virgins' [...] Other research, especially research looking into virginity loss, reports that 35% of virgins, defined as people who have never engaged in vaginal intercourse, have nonetheless engaged in one or more other forms of heterosexual sexual activity (e.g., oral sex, anal sex, or mutual masturbation).

^ Jump up to: a b Michael Kent (2000). Advanced biology . Oxford University Press . pp. 250–253. ISBN 978-0-19-914195-1 . Retrieved October 21, 2015 .

^ Showick Thorpe; Edgar Thorpe (2009). The Pearson General Studies Manual 2009, 1/e . Pearson Education India . p. 1.79. ISBN 978-81-317-2133-9 . Retrieved October 21, 2015 .

^ Jump up to: a b
Herbert L. Petri, John M. Govern (2012). Motivation: Theory, Research, and Application . Cengage Learning . p. 24. ISBN 978-1-285-40151-5 . CS1 maint: uses authors parameter ( link )
Bailey NW, Zuk M (August 2009). "Same-sex sexual behavior and evolution". Trends Ecol. Evol . 24 (8): 439–46. doi : 10.1016/j.tree.2009.03.014 . PMID 19539396 .

^ Jump up to: a b Balcombe, Jonathan (2006). Pleasurable Kingdom: Animals and the Nature of Feeling Good . Palgrave Macmillan . pp. 106 –118. ISBN 978-0-230-55227-2 .

^
"Coitus" . Merriam-Webster .
Fedwa Malti-Douglas (2007). Encyclopedia of Sex and Gender: A-C . Macmillan Reference . p. 308. ISBN 978-0-02-865961-9 . Sexual intercourse. [T]he term coitus indicates a specific act of sexual intercourse that also is known as coition or copulation. This 'coming together' is generally understood in heteronormative terms as the penetration of a woman's vagina by a man's penis.
Ada P. Kahn; Jan Fawcett (2008). The Encyclopedia of Mental Health . Infobase Publishing . p. 111. ISBN 978-0-8160-6454-0 .

^ Jump up to: a b c d e f g See page 302 for orgasm information, and pages 285–286 for definitions, prevalence and length of sexual intercourse. Carroll JL (2012). Discovery Series: Human Sexuality (1st ed.). Cengage Learning . pp. 656 pages. ISBN 978-1-111-84189-8 .

^ Milkman HB, Wanberg KW (2004). Pathways to Self-Discovery and Change: Criminal Conduct and Substance Abuse Treatment for Adolescents . SAGE . pp. 254–255. ISBN 978-1-4129-0614-2 .

^ Jump up to: a b Kinetics H (2009). Health and Wellness for Life . Human Kinetics. p. 207. ISBN 978-0-7360-6850-5 .

^ Jump up to: a b Barrows EM (2011). Animal Behavior Desk Reference: A Dictionary of Animal Behavior, Ecology, and Evolution . Taylor & Francis . pp. 122–124. ISBN 978-1-4398-3651-4 .

^ Jump up to: a b "Copulation" . Dorland's Medical Dictionary for Health Consumers , 2007/ TheFreeDictionary.com for various dictionary definitions . Retrieved September 6, 2012 .

^ "Copulation" . The American Heritage Dictionary of the English Language , Fifth Edition. 2011 . Retrieved August 23, 2013 .

^
Ken Plummer (2002). Modern Homosexualities: Fragments of Lesbian and Gay Experiences . Routledge . pp. 187–191. ISBN 978-1-134-92242-0 . Retrieved August 24, 2013 . [S]ome sexual practices are regarded as inherently better (normal, natural, more satisfying) than others, with vaginal intercourse privileged as the 'Real Thing.' Such beliefs, influenced by views about sex as ultimately a reproductive function, continue to be perpetuated through discourses on sex despite a number of important contradictions.
Richard M. Lerner ; Laurence Steinberg (2004). Handbook of Adolescent Psychology . John Wiley & Sons . pp. 193–196. ISBN 978-0-471-69044-3 . When researchers use the term sex , they nearly always mean sexual intercourse – more specifically, penile–vaginal intercourse... The widespread, unquestioned equation of penile–vaginal intercourse with sex reflects a failure to examine systematically 'whether the respondent's understanding of the question matches what the researcher had in mind.'
See page 11 onwards and pages 47–49 for views on what constitutes virginity loss and therefore sexual intercourse or other sexual activity; source discusses how gay and lesbian individuals define virginity loss, and how the majority of researchers and heterosexuals define virginity loss/"technical virginity" by whether a person has engaged in penile–vaginal sex. Laura M. Carpenter (2005). Virginity Lost: An Intimate Portrait of First Sexual Experiences . NYU Press . pp. 295 pages. ISBN 978-0-8147-1652-6 .
Fedwa Malti-Douglas (2007). Encyclopedia of Sex and Gender: A-C . Macmillan Reference . p. 308. ISBN 978-0-02-865961-9 . Sexual intercourse. [T]he term coitus indicates a specific act of sexual intercourse that also is known as coition or copulation. This 'coming together' is generally understood in heteronormative terms as the penetration of a woman's vagina by a man's penis.
Irving B. Weiner; W. Edward Craighead (2010). The Corsini Encyclopedia of Psychology . 4 . John Wiley & Sons . p. 1577. ISBN 978-0-470-17023-6 . Retrieved August 21, 2013 . Human sexual intercourse, or coitus, is one of the most common sexual outlets among adults. Sexual intercourse generally refers to penile penetration of the vagina.
Clint E. Bruess; Elizabeth Schroeder (2013). Sexuality Education Theory and Practice . Jones & Bartlett Publishers . p. 152. ISBN 978-1-4496-4928-9 . In many cultures around the world, vaginal sex is what is usually implied when people refer to 'having sex' or 'sexual intercourse'. It is the most frequently studied behavior and is often the focus of sexuality education programming for youth.

^ "Fuck" . Merriam-Webster . Retrieved March 30, 2013 .

^ "Shag" . Merriam-Webster . Retrieved March 30, 2013 .

^ "Sleep together" . TheFreeDictionary.com . Retrieved March 30, 2013 .

^ "Intromission" . Merriam-Webster . Retrieved December 26, 2012 .

^ "sexarche - oi" . Concise Medical Dictionary . Oxford University Press . Retrieved July 4, 2017 .

^ Lara LS, Abdo CH (2016). "Age at Time of Initial Sexual Intercourse and Health of Adolescent Girls". Journal of Pediatric and Adolescent Gynecology . 29 (5): 417–423. doi : 10.1016/j.jpag.2015.11.012 . ISSN 1083-3188 . PMID 26655691 .

^
"Sexual Intercourse" . Discovery.com . Archived from the original on August 22, 2008 . Retrieved January 12, 2008 .
Harvey B. Milkman; Kenneth W. Wanberg (2004). Pathways to Self-Discovery and Change: Criminal Conduct and Substance Abuse Treatment for Adolescents . SAGE . pp. 254–255. ISBN 978-1-4129-0614-2 .
Nancy W. Denney; David Quadagno (2008). Human Sexuality . Mosby-Year Book . p. 273. ISBN 978-0-8016-6374-1 .

^
See page 11 onwards and pages 47–49 for views on what constitutes virginity loss and therefore sexual intercourse or other sexual activity; source discusses how gay and lesbian individuals define virginity loss, and how the majority of researchers and heterosexuals define virginity loss/"technical virginity" by whether a person has engaged in penile–vaginal sex. Laura M. Carpenter (2005). Virginity Lost: An Intimate Portrait of First Sexual Experiences . NYU Press . pp. 295 pages. ISBN 978-0-8147-1652-6 . Retrieved October 9, 2011 .
Bryan Strong; Christine DeVault; Theodore F. Cohen (2010). The Marriage and Family Experience: Intimate Relationship in a Changing Society . Cengage Learning . p. 186. ISBN 978-0-534-62425-5 . Most people agree that we maintain virginity as long as we refrain from sexual (vaginal) intercourse. ...But occasionally we hear people speak of 'technical virginity' ... Other research, especially research looking into virginity loss, reports that 35% of virgins, defined as people who have never engaged in vaginal intercourse, have nonetheless engaged in one or more other forms of heterosexual activity (e.g. oral sex, anal sex, or mutual masturbation). ... Data indicate that 'a very significant proportion of teens ha[ve] had experience with oral sex, even if they haven't had sexual intercourse, and may think of themselves as virgins'.
Robert Crooks; Karla Baur (2010). Our Sexuality . Cengage Learning . pp. 286–289. ISBN 978-0-495-81294-4 . Noncoital forms of sexual intimacy, which have been called outercourse, can be a viable form of birth control. Outercourse includes all avenues of sexual intimacy other than penile–vaginal intercourse, including kissing, touching, mutual masturbation, and oral and anal sex.
UD, TK (2014). Promoting Healthy Behaviour: A Practical Guide . Routledge . pp. 243–248. ISBN 978-1-317-81887-8 .

^
See page 11 onwards and pages 47–49 for views on what constitutes virginity loss and therefore sexual intercourse or other sexual activity; source discusses how gay and lesbian individuals define virginity loss, and how the majority of researchers and heterosexuals define virginity loss/"technical virginity" by whether a person has engaged in penile–vaginal sex. Laura M. Carpenter (2005). Virginity Lost: An Intimate Portrait of First Sexual Experiences . NYU Press . pp. 295 pages. ISBN 978-0-8147-1652-6 . Retrieved October 9, 2011 .
Bryan Strong; Christine DeVault; Theodore F. Cohen (2010). The Marriage and Family Experience: Intimate Relationship in a Changing Society . Cengage Learning . p. 186. ISBN 978-0-534-62425-5 . Most people agree that we maintain virginity as long as we refrain from sexual (vaginal) intercourse. ...But occasionally we hear people speak of 'technical virginity' ... Other research, especially research looking into virginity loss, reports that 35% of virgins, defined as people who have never engaged in vaginal intercourse, have nonetheless engaged in one or more other forms of heterosexual activity (e.g. oral sex, anal sex, or mutual masturbation). ... Data indicate that 'a very significant proportion of teens ha[ve] had experience with oral sex, even if they haven't had sexual intercourse, and may think of themselves as virgins'.
UD, TK (2014). Promoting Healthy Behaviour: A Practical Guide . Routledge . pp. 243–248. ISBN 978-1-317-81887-8 .

^ Gross MJ (2003). Like a Virgin . The Advocate . Here Publishing. pp. 44–45. 0001-8996 . Retrieved March 13, 2011 .

^ Dolby T (February 2004). "Why Some Gay Men Don't Go All The Way" . Out . Here. pp. 76–77 . Retrieved February 12, 2011 .

^ Jump up to: a b c Lerner RM, Steinberg L (2004). Handbook of Adolescent Psychology . John Wiley & Sons . pp. 193–196. ISBN 978-0-471-69044-3 . When researchers use the term sex , they nearly always mean sexual intercourse – more specifically, penile–vaginal intercourse... The widespread, unquestioned equation of penile–vaginal intercourse with sex reflects a failure to examine systematically 'whether the respondent's understanding of the question matches what the researcher had in mind.'

^ Greenberg JS, Bruess CE, Conklin SC (2007). Exploring the Dimensions of Human Sexuality . Jones & Bartlett Learning . p. 429. ISBN 978-0-7637-4148-8 . 9780763741488.

^ Jump up to: a b c Weiten W, Dunn DS, Hammer EY (2016). Psychology Applied to Modern Life: Adjustment in the 21st Century . Cengage Learning . p. 349. ISBN 978-0-7637-4148-8 . 1305968476 . Retrieved December 27, 2017 .

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Richard D. McAnulty; M. Michele
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