Kim exposes baby bump while her ex wants her back

Kim Kardashian has unveiled her baby bump in a selfie on her Instagram.Photo / Instagram

Kim Kardashian's ex-boyfriend thinks she still belongs in his bed.

R&B star Ray J - who appeared in the leaked sex tape with the 32-year-old reality TV star in 2007, which kickstarted her rise to fame - wants her current boyfriend of one-year Kanye West to know that he was her first love and has hinted that he isn't over the pregnant brunette.

According to gossip website TMZ.com, the 32-year-old singer has penned a new song I Hit It First about Kim and the lyrics include: "She might move on to rappers and ballplayers, but we all know I hit it first.

"I had her head going North and her ass going South, but now baby chose to go West.

"No matter where she goes or who she knows, she still belongs in my bed."

Ray J is reportedly planning to make a music video for the song that will feature a curvy model that looks like the Keeping Up With The Kardashians star.

But rapper Kanye West, 35, has dismissed the new song as a desperate publicity stunt.

A friend close to the star told HollywoodLife.com: "Kanye don't condone broke a***, jealous [guys] who be trying to bite off he and Kim's fame just to stay, wait, just to become relevant."

Meanwhile, Kardashian unveiled her bare baby bump to the world to show off her pregnancy curves on Twitter earlier today.

She posted a picture of herself with a rolled up white t-shirt to proudly display her pregnancy curves, along with the caption "Baby Love".