New York ? Demi Moore describes “That ’70s Show” star Ashton Kutcher as her “soul mate” and says they would like to “expand our family,” in an interview in Harper’s Bazaar.

“Talk about meeting your soul mate,” the 42-year-old actress says in the magazine’s September issue. “I truly feel I have been given that gift. And believe me, I wasn’t some lightweight package. I’m, like, the package that didn’t just come with luggage – I had trunks.”

Moore says she and Kutcher, 27, have no plans for marriage. “I feel that we are and that we don’t need something formal, so to do so isn’t a big deal one way or another.”

“The next phase? The growth of my partnership (with Kutcher). The growth of our union. The growth of our family. Which is all the things we truly desire … to expand our family.”

The actress, who starred in 2003’s “Charlie’s Angels: Full Throttle,” has three daughters, Rumer, 17; Scout, 14; and Tallulah, 11, from her marriage to second husband Bruce Willis.