A spokesman for the Federal Labour Office said that if job seekers said they were prepared to work as, for example, dancers in strip bars, advisers could put them in touch with any suitable employers, but vacancies would not be displayed in job centres.

He also stressed job centres would not look for prostitutes on behalf of brothels, nor offer sex industry jobs to people who hadn't specifically mentioned it as an area of interest.

Speculation has grown over recent weeks that Germany's new welfare reforms, obliging the long-term unemployed to take any available job or risk losing their benefits, could lead to women being offered jobs in the sex industry.

"One can't expect everyone to be prepared to work in the sex industry," Luft said. "Plus if people aren't very attractive they aren't going to make much money," she added.