Coitus and copulation are both technical terms for sexual intercourse.
"Fertility, Family Planning, and Reproductive Health.S.Women: Data From the 2002 National Survey of Family Growth" (PDF).
Richard Balon; Robert Taylor Segraves (2009).
"Bonobo Sex and Society".In addition there are other barriers such as a higher prevalence of sexual abuse and assault.It is a conditioned reflex of the pubococcygeus muscle, and is sometimes referred to as the PC muscle.Data indicate that 'a very significant proportion of teens have had experience with oral dating sex search sites sex, even if they haven't had sexual intercourse, and may think of themselves as virgins'.Sexual functioning has been regularly identified as a neglected area of the quality of life in patients with rheumatoid arthritis.254 255 In groups that have reproduction similar to spiders, such as dragonflies, males extrude sperm into secondary copulatory structures removed from their genital opening, which are then used to inseminate the female.
See page 11 onwards and pages 4749 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".
A b c Lisa Arai (2009).
Teenage Pregnancy: The Making and Unmaking of a Problem.A b Robert.Retrieved December 5, 2014.Out of known pregnancies, two-thirds result in live births and roughly 25 in abortions; the remainder end in miscarriage.A b c Randall,.Most heterosexuals are familiar with the notion of 'having sex' or sexual intercourse as vaginal sex, the insertion of a penis into a vagina.Students' definitions of having sex, sexual partner, and unfaithful sexual behaviour".350 (jan05 10 g6380g6380.Retrieved March 2, 2007.When a fertile ovum from the female is present in the fallopian tubes, the male gamete joins with the ovum, resulting in fertilization and the formation of a new embryo.
Retrieved August 24, 2013.