Don‘t know what a word means?
Then use our glossary to find out!

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Fallopian Tube
The tubes that attach the ovaries to the womb in women, and people assigned female at birth. The eggs travel down the fallopian tubes each month they are released from the ovaries (if these are unfertilised, this results in a period).
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Feeling up
If someone feels someone's body in a sexual manner. Usually this is over clothes. This should always be done with someone's consent.
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Female Condom
A cover made of plastic (latex) that can line the vagina or the anus to prevent against STIs, and pregnancy if having penis in vagina sex. These can be inserted between 20 minutes to 6 hours before you are going to have penetrative sex. These could also be used in place of dental dams for oral sex. Use a new condom each time you have sex.
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Fertilisation
If sperm is ejaculated into the vagina when having penetrative sex, it can travel up to the cervix and meet an egg. If this becomes fertilised by sperm, and embryo can start to grow. This can result in pregnancy.
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Fertility
If someone has a healthy reproductive system they are considered fertile. This means being able to get pregnant or to make healthy sperm. If someone has a healthy reproductive system they are considered fertile. This means being able to get pregnant or to make healthy sperm. The opposite of fertility is infertility.
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Fingering
When someone uses their fingers to stimulate (or massage) someone's vulva. This might be by pressing on the clitoris or placing fingers in the vagina.
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Flavoured Condoms
Condoms that can be used for oral sex. These are usually fruit, chocolate or mint flavours.
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Flirting
This is a way of showing someone that you are interested in them in a romantic or a sexual way. This might be done in verbal or non-verbal manner. It can depend on the context, and it can be hard to know if someone is flirting with you. It is important to make sure that flirting is wanted by all parties. If not this can become sexual harassment.
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Foetus
The medical name for a baby in the womb between the 8th week of pregnancy and the birth.
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Foreplay
Any type of sexual activity that may come before penetrative sex. It is important that sex is pleasurable and all parties give their consent. It doesn't have to end in an orgasm or penetration.
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Foreskin
The fold of skin that covers the end/head of a penis.
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Fuck
Fucking is another word for having sex. This generally refers to sex that is penetrative, such as penis in vagina sex or anal sex. Also known as smashing, shagging, banging, jeeting or klarting.
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