A safe sex video has attracted criticism for suggesting anal sex as a form of birth control.

The risqué video advises: “one up the bum and you won’t be a mum”.

Abortion charity Marie Stopes International teamed up with comedy music band The Midnight Beast to create the video for an online safe sex campaign.

In the safe sex video, the band members are brandishing blow-up dolls and condoms.

While the song’s lyrics encourage using condoms, it also includes the line: “One up the bum and it’s no harm done, one up the bum and you won’t be a mum.”

Some viewers have criticised the Marie Stopes International, saying it ignores the risk of spreading Aids and other diseases.

One mother complained: “It is a silly way for the charity to spend valuable resources.”

The video has now been watched more than 90,000 times on YouTube.

It shows band member Stefan Abingdon simulating sex with a blow-up doll and another, Dru Wakely, finding a condom in his mouth while eating a banana.

The safe sex video culminates with a message warning viewers not to rely on Midnight Beast for safe sex advice, but to refer to a Marie Stopes website instead.

One young viewer commented: “I take it this video is for a world without Aids?”

The charity defended the video, saying it raised awareness of condoms and contraception in “a fun way”.

It added: “This tongue-in-cheek approach leads young people to a website with all the information and contact details they need to make informed lifestyle choices.”

Lisa Power, from the Terrence Higgins Trust, said the video should be seen in context alongside the advice on the website.

She added: “It is really important to tell young people that only condoms will protect them from STIs.”