( CM ) - Actor DUSTIN HOFFMAN struggles with the concept of monogamy - because he believes long-term commitment is "unnatural".
The Rain Man star has been married to his second wife, lawyer Lisa Gottsegen, for 27 years - and he admits he has occasionally felt temptation to stray.
He says, "There's so much about marriage that's unnatural. I don't think it's natural to be monogamous, to be as in love as you were the day before."
But despite the father-of-six's innate opposition to commitment, he insists he cherishes the partnership he shares with his wife.
He adds, "Does fidelity make sense? Yes. I don't think that you can substitute honesty in a relationship."