A-Z of sex word meaning

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O

Oestrogen

One of the female hormones that controls reproduction.

One Night Stand

When you have sex with someone but don't go on to have a relationship with them.

Oral Sex

Using the mouth and tongue to pleasure and stimulate a boy's penis or a woman's vagina. There are contraceptives available to avoid catching STIs through oral sex, such as Dental Dams and condoms.

Orgasm

The peak of sexual pleasure, orgasms are different for everyone and not everyone has an orgasm every time they have sex.

Ovaries

Ovaries are the female reproductive glands. They hold and develop eggs and make hormones called oestrogen and progesterone.

Ovulation

When a girl's ovaries produce eggs. This usually happens halfway through the menstruation cycle. For instance, if someone has a 28-day cycle from the first day of their period to the next, ovulation will be around day 14.

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