Model Sallie Axl calls Tulisa 'crap in bed'

'Big Brother' star Sallie Axl has waged a sex war against Tulisa by branding the singer "crap in bed".

The tattooed blonde admitted that she despises the 'N-Dubz' star since they supposedly clashed on a trip to Marbella, Southern Spain, the Daily Star reported.

Axl bashed the former 'X Factor' judge, in a late-night angry outburst, and branded her as a complete dud between the sheets.

The bisexual model, 26, said that she knows Tulisa and the singer gives the "worst b**w jobs".