Mayor Rob Ford says the groping allegations levelled against him by magazine publisher Sarah Thomson are not true.

2010 mayoral candidate Sarah Thomson accuses Ford of making sexually suggestive comments and groping her butt while at a party on Thursday night.

On Sunday's edition of NEWSTALK 1010's The City, Ford took a jab at his accuser, saying that ever since he met Thomson, he's always thought she "isn't playing with a full deck."

"I don't want to waste my time anymore, its not true," Ford said.

Claiming that 'hundreds' of people took photos with him at the party, the mayor claims Thomson is the only one that had a problem with his behavior that night.

"When people want to make up stories, that's their prerogative and we'll leave it at that," he said.

Ford went on to thank 2 Richmond Hill city councillors that refute Thomson's claims.

The mayor did not address comments in a written statement that indicate he is seeking legal advice over the matter, nor did he saw whether he would accept Thomson's challenge for both of them to take a lie detector test.

Thomson could not be reached for comment but released a written statement on Sunday evening:

"Early Friday morning, I posted a photo to my Facebook and reported that Mayor Rob Ford made suggestive comments and groped me at a CJPAC party.

Since then, the Mayor, his supporters and conservative media agencies have denied my claims, impugned my character and attacked my credibility.

I did not make these accusations lightly. I admit I did not handle the press perfectly, but I had just gone through a very rattling experience.

Over the past few days people have accused me of hating the Mayor and this I must repeat is not the case. I have always found him to be respectful, somewhat shy, but professional. While things have been competitive between us, I have always appreciated his stand on the need for subway expansion.

I am not the kind of woman who sees chauvinism everywhere or believes in reckless denunciations. But Mayor Ford was behaving inappropriately, and there was clearly something wrong with him during the CJPAC event.

He must be discouraged from over indulging to the point where he is groping or making lewd comments, and women should not put up with it when it happens.  The Mayor was outrageous, he acted horribly, and I won't be intimidated by the whitewashing he has tried so hard to generate.

Decades ago powerful men who sexually assaulted women would call them "hysterical," or "crazy" to debase their credibility. It pushed many assaulted women into silence. Today Mayor Ford stated that he wondered if I was "playing with a full deck" try to discredit me.  He will not push me into silence and I hope his accusations do not re-ignite the old fears that once silenced women.

We need an ongoing dialogue to ensure respect for women in the workplace and to create an inclusive and safe society for all. 

Unlike the Mayor, I do not have a history of lying about my behaviour. Mayor Ford has lied publicly numerous times. He denied the drunken incident where he verbally assaulted a Durham couple during a hockey game but later admitted to it. And During 2010 civic election campaign he denied being arrested for pot possession in Florida and then admitted it and another DUI charge.

The Mayor has a history of denial but usually owns up to his mistakes once the facts become overwhelming and I expect that he will eventually own up to this one."

(with files from Siobhan Morris)