Katie Price is being investigated by police on suspicion of revenge porn after the star allegedly showed a sex tape featuring her ex husband Alex Reid to a TV audience.

The mother-of-five was reportedly filming Celebrity Big Brother's Bit On The Side when she showed the apparent footage of her cross-dressing ex using a sex toy to a 40-strong audience.

According to The Sun , a corset-clad Alex appeared to be 'drunk' and 'giggling' in the video which Katie allegedly shared at Elstree Studios in Borehamwood on January 9.

Katie Price causes controversy about India Willoughby on CBB Bit on the Side

(Image: ITV)

But one witness claimed to the newspaper that no-one wanted to see it.

“She had asked us if we wanted to see it, and none of us replied," the insider said.

"We all watched it, but we didn’t react. No one was laughing or cheering her on or anything like that.

"We didn’t want to encourage her.”

Hertfordshire Police told the newspaper: “Inquiries are ongoing and it would be inappropriate to comment.”

(Image: ITV)

(Image: FilmMagic)

Mirror Online has contacted Katie's rep, police and Channel 5 for comment, and it remains unclear who reported the alleged incident.

Last year, Alex himself reported Katie to police after she allegedly shared lewd pictures of him with friends.

The cage fighter told the Sunday People: “I have reported her. Enough is enough,” he said just hours after leaving a police station.

“After seven years of bullying, harassment and threats I’ve had enough.

(Image: PA)

(Image: David Fisher/REX/Shutterstock)

“I’ve been persecuted and it has to stop somewhere. Ultimately I want to be friendly. I did love her once but she is causing me, and everyone around me, my loved ones, so much pain.”

Alex, 42, who likes cross-dressing, claims that Katie took pictures of him without his consent when he was intoxicated.

He said: “For someone who has taken videos and recordings without my consent or knowledge when I was intoxicated... I am mortified and disgusted."

For Katie's part, she previously insisted she would 'never, ever' share their sex tapes because, "I wouldn’t stoop to that level”.