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She may be a mom on the screen, but who knew "Twilight" star Kristen Stewart had the maternal instinct in real life?
In the upcoming "Breaking Dawn-Part 2," the final installment in the "Twilight" series, 22-year-old Stewart plays a mom to Renesmee (Mackenzie Foy), her daughter with vampire hubby Edward Cullen (Robert Pattinson).
And at the San Diego Comic-Con panel for the film, Stewart's protective side reportedly emerged. The actress was photographed covering her ears while "Twilight" scribe Stephenie Meyer covered Foy's so that the 11-year old actress wouldn't hear them discuss the sex scenes that take place in "Part 2."
Pattinson, Foy, and Stewart. (Alberto L. Ortega/Getty Images)
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"Mackenzie, go away," Stewart quipped before whispering the word "sex" to the room and claiming the series was not supposed to be "raunchy."
"[In] the second one, we just wanted to be animals," Stewart explained. "They're not humans anymore. How do you do that? We tried. They told us it was rated R."
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No doubt the studio has faith in its heroine's abilities, considering Stewart recently became the highest-paid actress in the world (she earned approximately $34.5 million over the past year).
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"Breaking Dawn-Part 2" hits theaters on November 16, 2012.