A female Liberal staffer says she was shocked and outraged when West Australian Opposition Leader Troy Buswell sniffed the chair she had been sitting on.
Mr Buswell on Monday refused to deny allegations he sniffed the chair of a Liberal staffer after she finished talking to a constituent in 2005.
The unnamed staffer has told The West Australian newspaper she was furious over the incident and gave Mr Buswell a dressing down.
"I was shocked and outraged and I told him," she told the newspaper.
"I was very concerned and expressed my displeasure loudly. and I believe that's where the matter should have ended."
Mr Buswell earlier this year admitted snapping the bra of a female Labor party staffer and has been accused by retiring Liberal MP Katie Hodson-Thomas of making sexist remarks to her.
Mr Buswell told reporters the allegations were part of a negative campaign against him, which he had predicted after taking over the leadership from Paul Omodei earlier this year.