Sexy septuagenarian Helen Mirren is still as gorgeous as ever, and as a hilarious 2011 "Saturday Night Live" sketch proves, her breasts are truly wonderful. But, sadly, audiences won't be able to see them on the big screen again.

In a recent CBS interview with Alan Cumming, Mirren revealed that she's officially covering up for good, and won't do any more onscreen nudity in the future. Cumming, who called Mirren's breasts "legendary," discussed the actress's previous nude roles, and the Oscar winner admitted that though she initially "never wanted" to get naked on camera, she also didn't think it was a very big deal.

"I was doing nude scenes [from] the first moment I started doing movies. ... It was the era," Mirren, who's been seen in the buff in flicks from 1979's "Caligula" to 2003's "Calendar Girls," told Cumming. " ... It seemed to be nothing to get your knickers in a twist over."

But at age 70, Mirren has decided that her disrobing days are over -- except for one special person.

"That's the good thing about getting older. You don't have to do that sort of thing any more," Mirren said. " ... [Now] my pleasure pillows are purely for my husband [Taylor Hackford]."

We'll miss those pleasure pillows indeed, but what a career they -- and Mirren -- have had. We say both she and they have earned a well-deserved break.

[via: CBS]

Photo credit: Getty Images for Tony Awards Productions