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The Gender of Sexuality: Exploring Sexual Possibilities.
Michael R Kauth (2000).
"Estimated pregnancy rates for the United States, 19902000: An Update.
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'.While the vast majority of respondents (more than 97) in these three studies included penilevaginal intercourse in their definition of sex, fewer (between 70 and amerikanska veteraner online chat-rum 90) respondents considered penile-anal intercourse to constitute having sex.A b c d Richard.184 185 Scholar Lisa Arai stated, "The idea that early sexual activity and pregnancy is linked to low self-esteem became online-kön videor i hd fashionable in the latter half of the 20th century, particularly in the US adding that, "Yet, in a systematic review of the relationship between self-esteem.A b c d e Cox, Lauren (March 8, 2010).In English, the term 'sex' is often used to mean 'sexual activity' and can cover a range of behaviours.The Orgasm Answer Guide.Retrieved December 7, 2014.James Bobick; Naomi Balaban (2008).Sexual intercourse (or coitus or copulation ) is principally the insertion and thrusting of the penis, usually when erect, into the vagina for sexual pleasure, reproduction, or both.9 This focus can also relegate other forms of mutual sexual activity to foreplay or contribute to them not being regarded as "real sex and limits how rape is defined.A historically prohibited or regulated sex act is anal sex.Retrieved July 2, 2008.
Analysis of the evolution of proximal factors.
"Fertility problems: assessment and treatment, Clinical guideline CG156".

247 Shakers believe that sexual intercourse is the root of all sin and that all people should therefore be celibate, including married couples.
Knoepp LR, Shippey SH, Chen CC, Cundiff GW, Derogatis LR, Handa VL (2010).