January Jones, for better or worse, has become an icon of 1960s sex and dysfunction, thanks to her breakout role on as the Waspy housewife Betty Draper on “Mad Men.”

And, she likes the character’s contradictions, according to a new interview in W magazine.

Betty, she reveals, was not in the original script, which is why she initially auditioned for the role of career climber Jane Peggy.

“There was no Betty in the pilot when I auditioned,” she reveals in a new interview in W magazine.

Matthew Weiner, the creator of the show, had no intention of showing Don Draper’s home life. I read for Peggy two times—it was between me and Elisabeth Moss, who eventually got the part.

“She’s superficial, strange, and often mean, and yet fascinating. I don’t judge Betty or necessarily understand her,” she says.

It’s strange, but when the season ends I miss wearing all Betty’s underpinnings,” says Jones.

I love long-line bras and girdles. There’s a sexiness about girdles—on Mad Men I wear them four months out of the year, and I see my body changing.

“When you wear a girdle, you can’t bend in the usual way. Your thighs are cinched together, which makes your stride shorter. You automatically get a wiggle in your walk. It’s sexy,” she says.

For more check out W magazine.

And check out January’s photos below.