Tulisa Contostavlos warns women off N-Dubz boyfriend Fazer

Tulisa Contostavlos has warned other women away from her boyfriend on Twitter.

The X Factor judge is dating her N-Dubz bandmate Fazer, although the pair were coy about the details of their relationship until recently.

While Fazer was reportedly clubbing in London, she tweeted: "2 all women! don't mess with my man!I may b famous but I will still cum and whup ur ass if u underestimate me! don't b disrespectful (sic)".

She added: "MGW [money grabbing wh*re] women make me laugh, NO darlin not only is he not interested but he came straight back n told me LHFAO bout u,years ago it wuda been hot."

The singer later returned to Twitter to admit that she was in the mood to "cause trouble" before explaining her previous "rant".

She explained: "4 the record that rant was directed at a girl tryin it on with my fella who she knows is with me! WELL DESERVED"

Fellow X Factor judge Gary Barlow officially joined Twitter at the weekend.

Watch Tulisa Contostavlos appear in The Collective's video for 'Teardrop' below: