Jenny McCarthy Abs: How Does The 40-Year-Old Stay In Such Great Shape?

It's been almost 20 years since Jenny McCarthy appeared in Playboy. But the 40-year-old's abs look better than ever!

"This is my second time doing Shape," the mom of one said, recalling her cover in 2009. "I feel really honored because I'm turning 40 next week. And if they asked me to be on the cover, that means I'm doing something right."

Turns out abs this stellar don't come easily. McCarthy told Shape that she got serious about working out after she posed for Playboy in 1993. 

So what do the workouts entail? "I get to work out about five days a week and I really change it because I would lose my mind if I did the same thing over and over again," she said. "If I only have two minutes, I have a go to workout and that is lunges, sit-ups and push- ups."

The blond bombshell is also careful about what she eats. "The one food splurge that I can't live without is my chocolate milkshake. Don't get me diamonds just get me a chocolate milkshake."

McCarthy never ceases to shock. Always keeping it playful, the actress gave Justin Bieber a huge kiss on stage at the American Music Awards right after the "did he or didn't he" Barbara Palvin scandal.

"Wow. I feel violated right now," Bieber said, laughing. "I did grab his butt," McCarthy said backstage. "I couldn't help it. He was just so delicious. So little. I wanted to tear his head off and eat it." 

But we would expect nothing less from the hot mom who's been on the cover of Playboy six times. And that's why we love her.