Amy Winehouse had an affair with Pete Doherty bandmate

Amy Winehouse has reportedly had an affair with a third man — Pete Doherty’s bandmate Mik Whitnal.

Whitnal, the guitarist for Pete’s band Babyshambles, has been telling pals he bedded the troubled singer — and has revealed private details of a birthmark Amy, 24, has in an “intimate” area.

A source said: “He says they’ve slept together a couple of times. He told a few people after that stuff about her and Alex Haines came out.

“It’s always supposed to have happened when they’ve been on a bender. Telling people about her birthmark is his way of proving it happened. It’s male bravado.”

Amy’s husband, Blake Fielder-Civil, is currently locked up in London’s Pentonville prison accused of assault and conspiring to pervert the course of justice.

And while her husband’s been in jail, the ‘Rehab’ singer has had an affair with an American photographer called Blake; Alex Haines — her manager’s assistant; and now Mik, who is 15 years her senior and has a girlfriend.

Last night, Babyshambles manager Adrian Hunter insisted Mik and Amy were just pals.