Lisa Marie Presley to have twins

Lisa Marie Presley is set to give birth to twins, it has been claimed.

Sources say the actress — the daughter of Elvis Presley — and her fourth husband Michael Lockwood are expecting twins -- and at least one of the babies is a boy.

A source said: "Michael told me that he and Lisa have been trying to get pregnant for about a year.

"He also said that they had a sonogram two weeks ago, and [one] baby opened its legs, and they saw something!' Michael was beaming."

However, 40-year-old Lisa — who is four and a half months pregnant — wishes she could of revealed the details of her pregnancy under better circumstances; she wrote on her MySpace blog last week: "After being the target all week of slanderous and degrading stories, horribly manipulated pictures and articles in the media, I have had to show my cards and announce under the gun and under vicious personal attack that I am in fact pregnant.

"Once they got a glimpse of my expanding physique a few days ago, they have been like a pack of coyotes circling their prey whilst eerily howling with delight.

"Starting with a London publication and then New York and Chicago all writing false defamatory degrading stories about all of the dark possible reasons I could be putting on weight.

"The US tabloids have been calling all day wanting confirmation on all kinds of insane theories."

Lisa Marie — who has two teenage children with first husband Danny Keough — is "having a really hard time" with her pregnancy, an insider tells Star Magazine. "She has gained a lot of weight and feels terrible about herself. She can't stand to look in the mirror. It makes her miserable. She can be nice one minute but then horrible the next. It's difficult to be around her."