The couple first got together in March 2011 but split up earlier this year.
> Katie Price's ex-lovers and reality TV: A history - video
Asked if Price enjoyed sex, Penna said: "I gave her the best orgasms in her life. The first time ever we had sex, she told me it was the best sex she ever had.
"But she would rather spend all day Googling her name and looking at pictures of herself on websites. I'd say, 'Come on, it's better to f**k!'. But she'd just say, 'Not now'."
Asked if Price asked him to do 'kinky things' with him, he replied: "I like to do lots of things to women so they have a really good orgasm and have fun in the bedroom.
"But not having sex with a vodka bottle like her and Alex."
Of whether Price is still obsessed with her first husband Peter Andre, Penna said: "She loved Pete more than she's ever loved anyone.
"No-one will live up to Pete for her. They both know how they feel about each other."
On whether he would ever reunite with Price, the Argentinian model said: "She was one of the women I've loved most in my life. and people make mistakes.
"If somebody says sorry, why not give them another chance?"
Read the full story in Now magazine, out today (Tuesday, November 27).