Billboards showing a model in underwear advertising a pornographic account page have been cleared by the regulator - despite complaints that they were inappropriate for children.

The Advertising Standards Authority (ASA) received 30 complaints that the posters seen in Harrow, Tottenham, Lambeth and Edgware in June and July featured sexual adult content and were inappropriate for display in an untargeted medium.

The posters featured an image of the top half of the model and influencer posing in a bra top, with text stating @ElizaRoseWatson alongside the logos of the OnlyFans and Instagram social media platforms.

All the complainants, who understood that OnlyFans was an internet content subscription service which featured sexual adult content, challenged whether the advert was inappropriate for display where children could see it.

Many believed the ad was overly sexualised and objectified women and complained that it was offensive, harmful and irresponsible.

Enfield Independent: Eliza Rose WatsonEliza Rose Watson (Image: Eliza Rose Watson)

One Harrow resident, who did not want to be named, said: “Harrow is a rural suburb of Greater London, not Soho or the Red Light District of Amsterdam.”

The billboard in Harrow was graffitied with a message reading 'keep porn off our streets'.

Watson said the ad adhered to advertising guidelines and reflected leading trends, adding that she tailored it to “avoid offensiveness to mature viewers and intrigue to the younger generation”.

The former pre-school teacher, 34, defended her adverts during the backlash and said she would “absolutely” consider putting more up across the capital.

Amplify Outdoor, the owner of the poster sites, said none of the ads were displayed within 100 metres of a school, with the closest being 450 metres from the nearest school.

Clearing the ads, the ASA said that although Watson’s clothing was revealing, the image did not feature any nudity, and the pose adopted by her was “no more than mildly sexual”.

The ASA said: “While we acknowledged that the image of Ms Watson and reference to OnlyFans might be distasteful to some, we considered that because the ad was not overtly sexual and did not objectify women, we therefore concluded it was unlikely to cause serious or widespread offence.

“The ad was shown on several posters throughout London, which was an untargeted medium, and was therefore likely to be seen by a large number of people, including children.

“However, because we considered the ad was not overtly sexual and did not objectify women, we therefore concluded the ad was unlikely to cause serious or widespread offence and had not been placed irresponsibly.”

The ASA ruled no further action was necessary.

Environmental activists Global Witness later took over three of the poster sites, on Bruce Grove in Tottenham, Norwood High Street in Lambeth, and Deansbrook Road in Edgware, to comment on the pay package of BP chief executive Bernard Looney, whose earnings went from £4.5 million to £10 million last year.

Enfield Independent: The OilyFans advert that replaced Eliza Rose Watson's displayThe OilyFans advert that replaced Eliza Rose Watson's display (Image: PA)

Global Witness said its ‘OilyFans’ replacement of the previous adverts was a light-hearted jest about a serious topic.