Justin Bieber is dating a young American singer who has confessed to pals that she wants to have his children. The troubled star has been seeing Katherine Gazda as well as romancing bad girl Chantel Jeffries. Justin, 19, and Katherine, 18, were introduced at the end of last year by mutual friend Blake Kelly and the romance quickly blossomed. Sources said the young couple had even discussed the prospect of having children.

A friend said: "They hit it off straight away and are both really serious about one another. But their relationship has been very up and down because she can't stand the way he has been behaving recently. She is desperately trying to help him through all the scandal and regain his clean-cut image. Underneath all the bravado and controversy, Katherine believes he's a lovely kid with a real heart, she just thinks he is being led astray."