Robbie Williams and his wife Ayda Field are fighting allegations of sexual harassment brought against them by their one-time personal assistant, who claims he was wrongly dismissed.
Gilles De Bonfilhs has submitted legal documents in Los Angeles that allege Ayda used to walk around in a "state of undress" and ask him probing questions about his sex life.
She is also accused of telling him salacious details about her own sex life – though both she and Robbie deny any wrongdoing.
While both she and Robbie have been named in the lawsuit, there are no claims against Robbie.
A rep for the couple said the allegations are "entirely without substance" and will be "strenuously defended".
Mr De Bonfilhs only worked for the pair for three months – between October 2014 and January this year – and is seeking £16,000 of damages for his "wrongly terminated" contract.
However, the couple's spokesman claims the ex-PA was fired for "serious misconduct", though no further details were given.
Robbie and Ayda have been together almost ten years, getting married back in 2010 and having their second baby - Charlton Valentine – in October last year to join daughter Theodora.