During an interview with fellow comedian Richard Herring, the 38-year-old opened up about the experience which he says was a stunt for a television show about social taboos.
He revealed: ‘I w**ked off a man in a toilet. I thought, “I think of myself as heterosexual but perhaps that’s ‘cause of the environment that I grew up in where homosexuality may have been difficult for me to express.”’
The star, who admitted he was in the grips of heroin addiction at the time, continued: ‘I trawled around Soho…going [to] various gay bars, gay gyms trying to pick people up with a film crew. I went in this pub and I goes: ‘Anyone want me to w*** them off?’
‘And this bloke goes, ‘Yep’. Like as if I was saying: “Does anyone want a packet of crisps [potato chips] from the bar…?”
‘I w**ked off a man in a toilet'
‘So we goes to the lavvy – me, him, the director – and…he gets his willy out. And it was not nice. The phallus is…I like mine and you see some others in paintings that look all right but his looked like a rag.’
Russell describes the scene in detail and admits the director persuaded him to allow the man to perform a sex act on him.
The star – who was famously married to Katy Perry - also confesses that despite not being gay, he is a ‘sexy narcissist’ and wanted to do a good job.
The episode was one of just a series of social taboos the comedian admits he explored in a ‘very irresponsible, cavalier, slapdash fashion’ as part of his TV show RE: Brand - which aired back in 2002 on a channel called UK Play.
During the podcast interview Russell also tells of taking a bath with a homeless man and staying with a prostitute and her family for the TV show.