She told Italian magazine Chi: "I am very happy at the moment - thanks to my man and my fairytale is continuing. We are a couple that never gets bored.
"I am a firm believer in marriage, in the future I will be married, but for the time being I am happy as I am. I don't need anything to confirm how happy I am. My maternal instinct has not kicked in yet but my mother says when it does, it will be like a lightening bolt."
Elisabetta is renowned for her fabulous figure but reveals she works hard to stay in shape.
She explained: "I don't always have the stomach muscles I have and I get cellulite as well like everyone else. I stay fit and I exercise, I go horse riding and I have discovered Asian food with rice and soya which keeps you in shape."