Mad Men beauty Christina Hendricks, who has become a symbol of voluptuousness in a Hollywood obsessed with thin actresses, may have had a little help to get her ample breasts.

Playboy tweeted photos of a slimmer Hendricks in a silver bikini that shows her far less endowed on top. Although she was younger and thinner, the photos immediately touched off speculation she may have had breast implants.

This photos are from the July 1999 issue, when Hendricks was then 24. She’s 35 now. She’s on the right in the photos.

The 5’8″ Christina, who once dieted herself down to a size 4 during her modeling days, has insisted she’s happy to be a role model for bigger women, and is proud of her voluptuous body, which she claims is 100 percent natural.

Check Out Cristina’s Playboy photos.
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“I didn’t get a boob job,” she said recently. “It’s who I am. And I’m lucky to be on a show that celebrates it.”

Hendricks says her early days as a model were tough on her body image.

“I was a model for years, and even when I was 19 years old and 115 pounds [and 5´8˝], my agency said, ‘Your ankles are a little large. If you could lose 10 pounds, that would be really great.’

“I’ve always had boobs and hips, even when I was 115 pounds. And here I am, much heavier than when I was modeling, and all of a sudden people are giving me positive feedback.

Christina, who says she’s shocked by how scary-skinny models and actresses are these days, says encouragement from fans has sometimes moved her to tears.

“I’ve had people come up to me and say, ‘You’ve made me feel proud about my curves,’ or, ‘It’s so refreshing to see body types [like yours],’ ” she said.

“That feels nice because, after all, I feel sexy and I feel like a woman and I feel happy, and I don’t feel like I’m constantly depriving myself or beating myself up and I still feel beautiful,” Hendricks explains.

“I’m a woman, and do I want to lose 10 pounds? Absolutely, like everyone does,” says Hendricks. “So I can’t say I’ve gotten beyond that.”

But fan adoration has helped her be a lot more comfortable in her own skin.

“It’s such a compliment [when people say they like my body type], because of all those times I had agents who were like, ‘You have to lose some weight,’ and all of a sudden, people are celebrating it,” she says.

“It’s like: ‘Oh, thank you! Thank you for letting me be me.’ “