R&B star Chris Brown has dismissed reports his model girlfriend Karrueche Tran is pregnant with their first child.

The singer began dating the beauty earlier this year and was forced to shoot down gossip in April that he had proposed to his lover.

Further rumors surfaced online last week speculating that Tran is pregnant, but Brown insists the couple is not expecting a baby.

In a post on his Twitter.com page, he writes, "And so we are clear Karrueche is not pregnant!!!"