"We have lots of sex, we raise our kids very well and Stephen cooks dinner every night for the whole family - life's good," contactmusic.com quoted her as saying.
"Everybody has sex, especially if you're married. I don't know if married people will be inspired by me though - they might just think I'm a pervert."
Mel who raises her daughters Phoenix and Angel from previous relationships also revealed she thinks having sex is a good way to keep fit.
"I think any kind of sexual activity is a bit of a workout if you do it right. We have good communication with each other and I never fake it," she said.