Senses-shattering ENQUIRER interview with Shirley Jones who just posed for Playboy at age 75!

But you won’t see The Partridge Family mother in famed girlie mag – because bunny boss Hugh Hefner wanted Shirl to show MORE skin!

"I played a drunk, washed-up singer on The Cleaner recently with Benjamin Bratt, and in one scene I bared my breasts," Shirley told The ENQUIRER in an exclusive interview.

"Of course, my back was to the camera so you don’t really see anything. But the next thing I know Hugh Hefner wanted me to shoot a spread for Playboy!

"My children and friends said, ‘Shirley, are you crazy? You’re going to pose nude?’

"I replied, ‘No, I’m not going to pose naked, but I am going to show the best parts of my body.’

"In the end, Hef didn’t run it because I wouldn’t show enough! But I had a great time and the pictures were fabulous."