In the UK, it is illegal to have sex until you are old enough (known as the "age of consent"). The age of consent for vaginal sex in England, Scotland & Wales is 16 years old and it is 17 years old in Northern Ireland. _
In Scotland it is legal to have anal sex between a man and a woman at age 16 but in England and Wales you must be 18 and in Northern Ireland it is always illegal. _
The age of consent for two men to have anal sex together is now the same as the law for vaginal sex.
You shouldNEVERhave sex if you don't want to (whatever your age and whoever they are). It is ALWAYSillegal to force someone into having sex.