Don Imus has said he feels bad for punching a transgender woman he picked up in a bar in his youth.

While discussing real estate mogul Donald Trump's decision to allow Jenna Talackova, a transgender woman, to compete in the Miss Universe Canada pageant, Imus told Lis Wiehl and Deirdre Imus about the incident.

“You know one of the things I wouldn't talk about for years was while I was in the Marine Corps – I went into the Marine Corps when I was 17 – and I was in LA, my dad owned some apartment buildings in Los Angeles, and I picked up a babe in a bar … that girl had a penis,” he said on Imus in the Morning, which is simulcast on Fox Business Network.

“And I was making out with her,” Imus said as both women reacted with disgust.

“Here's what I really feel bad about is I punched him. I mean, I punched him, I shut it down,” he said.

When the women asked if there were “any tell tale signs,” Imus loudly stammered, “I was 18 years old and hornier than Hugh Hefner and drunk! What the hell do you mean, 'Did I notice.' No!” (Watch the segment at YouTube.com.)