Idris Elba will be a new father soon, as news emerged that his makeup artist girlfriend Naiyana Garth is expecting a baby. 

The 41-year-old Thor actor has been getting more serious with Garth lately as he recently invited her to the Harper's Bazaar Women of the Year awards in London last week. It was that event where onlookers got a clear glimpse of Garth's baby bump. (See photos here:)

In an interview with HOT 97 radio personality Angie Martinez last week to talk about his new movie, Mandela: Long Walk to Freedom, fans called in to quiz him on his personal life. 

When a caller asked if he was dating anyone, Elba responded, "Yes I am."

Another caller got even more personal and asked, "Is it true that you're expecting a baby?"

Elba gave a sarcastic response, saying, "I'm personally not expecting the baby, no. That would be physically impossible."

The baby with Garth will be Elba's second child. He has an 11-year-old daughter named Isan, who lives with his ex-wife Dormowa Sherma in Atlanta.

Back in October, Garth revealed that she is in the early stages of her pregnancy when she tweeted a magazine editor.

"Very good love, (me too. Very early though.) Where u working now or u on mat (maternity) leave already," she tweeted on Oct. 9. 

Despite the couple recently going public, a source said they have actually been in a relationship for quite some time now. 

"They've been together for a few months but it's really ramped up recently. They get on brilliantly and she's a real hit with his family and friends," the source told The Sun. 

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