According to the website Femalefirst, Miller had her first sexual encounter in her own bedroom. The actress explained, "I had my first serious boyfriend when I was 16 and my mother made sure I brought him home. It was a very open household but I only brought home guys I really liked."
The pretty blonde star has been causing quite a stir with her steamy love scene with co-star Hayden Christensen in her new film Factory Girl. The scene is so realistic that rumours have been circulating that Miller, 25, and Christensen, 25, actually had sex for the camera.