Jenny McCarthy, Shape Jan/Feb 2013 issue

Jenny McCarthy is one hot mamma! To prove it, the 40-year-old showed off her toned abs on the cover of Shape's January/February issue.

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McCarthy's fit physique comes as no surprise (she is a six-time Playboy model), but the model works hard to stay in shape. McCarthy told Shape she does yoga twice a week in addition to strength traning and running three to five times per week.

Her secret weapon to stay motivated? "I'd rather be electrocuted than not have my iPod on the treadmill," McCarthy said.

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Check out a video of McCarthy's Shape photoshoot below.