Lisa Marie Presley's husband is having a phantom pregnancy.

The 40-year-old star - who is rumored to be expecting twins with music producer Michael Lockwood - says while she is finding her pregnancy easy, her spouse is suffering.

She said: "He has all my symptoms. He feels like his belly is getting big, and he has the same appetite I have. He's having reflux and was nauseous the other day. It's funny."

A phantom pregnancy in men is also known as Couvade Syndrome and fathers-to-be can suffer from morning sickness, cramps, back pain, cravings and swollen stomachs.

Lisa Marie - the daughter of late music legend Elvis Presley - says she is only craving fruit.

She said: "Fruit - it's boring but that's what I want. Any fruit - fruit smoothie, fruit juice - it's good!"

Lisa Marie - who already has two children, 18-year-old daughter Danielle and son Benjamin, 15, from her first marriage to musician Danny Keough - hopes the older kids will help her once the baby arrives.

She added to OK! magazine: "Oh yeah, they will. I'll be at the bar, and they'll be home baby-sitting. Just kidding!"