The 29-year-old actress admits her Catholic upbringing made her want to "break away" from her mother Catherine and father Mark.
She explained: "It`s always been weird because I grew up in a very traditional, Catholic household. My parents were very strict but I broke away from that at an early age. I was a feminist when I was five. These days, I am much more liberal-minded bit I still respect their beliefs."
As Jessica has grown older she has learnt to accept her parents` views, but still considers herself an independent woman.
In her latest film `Machete` Jessica gets to stab a love rival in the eye with her stiletto heels, something she thoroughly enjoyed.
She said: "Walking in 3in heels wasn`t as much fun as putting one in someone`s eye. It was 104 degrees where we were shooting in Texas and they were not comfortable."
Jessica - who has a two-year-old daughter Honor with husband Cash Warren - is regularly referred to as one of the world`s most beautiful women, but she doesn`t think of herself as "sexy".
She added in an interview with the Metro newspaper: "I don`t really pay attention to that sexy image. It just goes with the character in the movie. At the end of the day, it`s all a part of selling a product."