Moore and Kutcher will not marry, but might have baby

In the September issue of Harper's Bazaar, Demi talks about her relationship with Ashton Kutcher. They met two years ago and since that time are together.

The 42-year-old actress called Kutcher, 27, her "soul mate" and said, "I truly feel I have been given that gift."

While she and Kutcher would like to "expand our family" — there have been tabloid reports that Moore was pregnant — there are 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," she tells the magazine.

Moore says the couple, who recently moved into their new home in the Hollywood Hills, enjoy "sharing a bath with one another and watching `Court TV.' Snuggling up naked."

As for the focus on the couple's 15-year age difference, Moore said, "It's been a challenging few years."

Moore has three daughters, Rumer, 17; Scout, 14; and Tallulah, 11, from her marriage to second husband Bruce Willis, Xinhua reports.

The actress has just finished shooting Half Light, a thriller set in Scotland; an ad campaign for Versace and is also setting up a holistic beauty company with two friends. Meanwhile, Kutcher continues to perfect his Jeremy Beadle skills.