A sex-obsessed prison warden who was filmed romping with an inmate in his cell has said she is “incredibly embarrassed” and regrets the decision that saw her spending her own time behind bars.

Linda De Sousa Abreu, a married mom and OnlyFans creator, went viral for having sex with burglar Linton Weirich, 39, in his cell at HMP Wandsworth in south London — with the footage showing her looking back with a huge grin as he stood behind her with his hands on her hips.

“I regret everything I did. I’m incredibly embarrassed,” she told the Sun a year after being released five months into her 15-month sentence for misconduct in public office.

“I had sex with someone I shouldn’t have had sex with and I had an inappropriate relationship, but I didn’t do anything else,” she said of texting the convict on a phone he had illegally smuggled into the lockup.

Abreu — who had earlier gushed on a UK TV show about how much she loved sex — said she wants to turn her life around and focus on being a mom.

“I’ve just been keeping a low-key life. I just want to get on with my life. I want to keep being a good mom to my child,” she said.

Personal trainer Weirich told the Sun how he and Abreu had sex “a few times” inside the Category B lockup before their encounter, which was recorded by a fellow inmate known only as “Sharkie.”

“Linda knew it was being filmed but didn’t seem to care about it or her job,” he claimed.

He said the sex followed the warden constantly being “flirty” with him.

“It was obvious she liked me,” he said.

The romp went viral and Abreu was arrested at Heathrow Airport after she tried to catch a flight to Madrid, having called her employers to say she was not returning to work.

Abreu tried to blame the romp on the prison being “understaffed,” but prosecutor Tetteh Turkson said she was “an enthusiastic participant who wrongly thought she would avoid responsibility.”

“This was a shocking breach of the public’s trust,” he said.