Jennifer Lopez has revealed that she enjoys acting more now that she is a mother.The 40-year-old actress, who stars alongside Alex O'Loughlin in upcoming movie The Back-Up Plan, had twins in 2008 with husband Marc Anthony.She told the News of the World: "One of the best days of my life was the first day filming back on the set and having my twins with me."It was like my life is complete! This is what it was always supposed to feel like!"
