Ashlee Simpson is reportedly expecting her first child with Evan Ross.

The couple, who got married in August, are set to welcome a baby into the world next year, according to E! News.

The 30-year-old singer already has six-year-old son Bronx with ex-husband Pete Wentz.

The 'Hunger Games' star Evan, 26, recently admitted he wants to have as many children as possible with the blonde beauty.

Speaking last month, he said: ''I would love to [have kids]. As many as possible.''

Asked about married life, he added: ''It's the best thing ever.

''I've been with her now for a while so it just feels right. I'm happy to say she's my wife.''

Ashlee was said to be equally keen to give a sibling to Bronx, and sources close to the couple - who married in a romantic ceremony held at Evan's mother Diana Ross' lavish home in Greenwich, Connecticut - previously said they ''can't wait'' to see their families grow.

The insider said: ''They can't wait [to have a child together].''

Bronx already has some experience of being a big brother, as Pete also has three-month-old son, Saint Lazslo Wentz, with girlfriend Meagan Camper.

The Fall Out Boy rocker split from Ashlee in 2011 after three years of marriage.