My friend's sister hit my parked car, what steps do I need to take?

I took my dad's infiniti g35 to a friend's house. While I was inside his sister backed out into my car and left a large dent above the penger side rear wheel. I was legally parked, she did not look back, she did not notice another car in the driveway, she ged it out of their garage, and she admits full responsibility. We are both insured. What steps do I need to take to get the car fixed. My dad is out of town for the next couple of days so I want to have the car as close to being fixed as possible, he is a real estate broker so he needs his car to drive around clients.