A former Playboy bunny is shedding her clothes to prove that aging can be sexy — even at 83.

Dorrie Jacobson, now a great-grandmother, poses fetchingly in black lingerie and other figure-hugging undergarments on her Instagram, Senior Style Bible, which has more than 26,000 followers. The former Playmate, who was a bunny in Chicago and New York in the 1960s, recently shared photos of herself wearing her iconic costume.

“I wanted to do something to combat ageism. I didn’t see older women being represented,” Jacobson, now based in Las Vegas, tells Caters News Agency. “It also makes me feel self-confident.”

The feedback she’s received for her body-positive photos has been positive.

“[Y]ou are the embodiment of powerful women,” wrote one Instagram user.

Jacobson says she plans to model for the rest of her life.

“We do not have an expiration date,” she says. “I have always reinvented myself over the years. It keeps me young.”