Russell Brand was questioned by police over claims of sexual assault back in 2014, when a masseuse alleged he groped her and made her feel “like a prostitute,” according to a new report.

The embattled British comedian, who is being investigated for allegedly raping four women, had his first known such run in with police nine years ago when an English masseuse said he attacked her at mansion in Oxfordshire, The Sun on Sunday reported.

The masseuse, who was not publicly identified, said she was hired to give Brand a birthday massage valued at more than $600 on June 7, 2014.

When she led him to his massage table at a bathroom suite, the masseuse claimed Brand began touching her “in a sexual way” for about 40 minutes before he was kicked out of the mansion, according to the report.

She said felt she was treated “like a prostitute,” receiving payment for the massage even though she never gave him one, the Sun reported.

The traumatized woman said she called Thames Valley Police, who went on to grill Brand over the allegations, which he denied, describing the encounter as “friendly but awkward,” according to the report.

Brand also claimed that CCTV footage from the property supported his version of the story that he was not kicked out of the mansion, the Sun said.

The following month, Thames Valley Police informed the masseuse and Brand that they were not pursuing the case, the Sun reported.

Outraged by the police’s decision, the masseuse sought to have the case reviewed by the Independent Office for Police Misconduct.

The Independent Office for Police Misconduct and the Thames Valley Police Department did not immediately respond to The Post’s requests for comment Sunday.

Russell Brand was accused of raping, sexually assaulting and abusing four women over the course of seven years from 2006 to 2013.

Brand denied the allegations in a video on YouTube and X, formerly Twitter, alerting fans to “serious criminal” allegations that he said would be made against him.

“Amidst this litany of astonishing, rather baroque attacks, are some very serious allegations that I absolutely refute,” Branded shared. “The relationships I had were absolutely, always consensual.”

While the investigation proceeds, YouTube has suspended Brand from making money on the video streaming site, his pub “Crown Inn,” located in Pishill, Britain, has been temporarily shut down and BBC has formally launched a review into the comedian’s time at the network.

The claims are the latest revealed against Brand, who stands accused of sexually assaulting four women — including a then-16-year-old girl who says he called her “the child” — between 2006 and 2013, according to a joint investigation published by the Sunday Times of London, the Times of London and Channel 4 Dispatches earlier this month.

Since the allegations surfaced, another woman has come forward to Scotland Yard to allege she was sexually assaulted by Brand in Central London’s hip Soho area in 2003.

Brand is currently being investigated by officers with Britain’s Operation Hydrant, a sex crimes squad set up after the late BBC star Jimmy Savile was found to have abused hundreds of kids and vulnerable adults.

The BBC, where Brand had worked as a radio presenter during the time of the first alleged assaults, said it has launched its own internal investigation into the claims. The production company Banijay UK has also launched its own probe.

Brand has repeatedly denied the allegations, claiming that all his sexual relationships with the women accusing him have been “always consensual.”