Arnold Schwarzenegger must be going through hell after admitting that he fathered a child with his household employee ten years ago but his estranged wife Maria Shriver and their eldest daughter Katherine shined at the Women Who Inspire Us luncheon. Shriver was all smiles when her young daughter won Girl Power Award.Heartbroken Shriver made her first public appearance for Oprah Winfrey’s farewell talk show special after Arnold confessed to having a lovechild with their household staff. She looked happy when her daughter win Girl Power Award at the Women Who Inspire Us luncheon, organised by A Place Called Home, a non-profit youth centre in South Central Los Angeles.Shriver took to micro-blogging site to express her happiness on her daughter winning the award. “Congrats to my beautiful & brilliant daughter, (Katherine), for receiving the Girl Power “Congrats to my beautiful & brilliant daughter, @kschwarzenegger, for receiving the GirlPower Award from A Place Called Home today,” Shriver, 55, Tweeted Thursday night after taking nearly a week-long break from Twitter in the wake of the news that her husband Arnold Schwarzenegger fathered a child during an extramarital affair.Shriver and Katherine, who wrote “Rock What You’ve Got: Secrets to Loving Your Inner and Outer Beauty from Someone Who’s Been There and Back” last year, were joined at their table by sister Christina, 19, during the luncheon benefiting A Place Called Home, a non-profit youth center in South Central Los Angeles.