Daryl Maguire avoids questions about his relationship with Premier Gladys Berejiklian at ICAC inquiry

Disgraced ex-Liberal MP Daryl Maguire who had a years-long secret relationship with the NSW Premier faced a six-hour grilling at ICAC today. But wasn't asked one key question.

Disgraced former Liberal MP Daryl Maguire faced a six hour grilling at the ICAC inquiry today, as the NSW Premier Gladys Berejiklian further distanced herself from him.

The NSW Premier's former flame is fronting an Independent Commission Against Corruption inquiry in Sydney over his conduct while a member of parliament.

Speaking to the media this afternoon, Ms Berejiklian conceded Mr Maguire "fooled a lot of people" and she can't rule out that he pursued a relationship with her purely for his personal gain and business deals.

Within the first hour of being in the witness box, Mr Maguire admitted "monetising" his parliamentary office, including accepting cash, for helping to broker deals and provide access to senior political figures.

He faced hours in the chair but was not asked once about his relationship with the Premier. But he is due to face the inquiry again tomorrow, where Ms Berejiklian is sure to be a hot topic.

His evidence may end up deciding whether Ms Berejiklian survives in her job, with NSW Parliament also sitting on both days, giving her critics plenty of opportunity to attack.

Pressure is mounting on the Premier over what she knew about her ex-lover's business dealings, with more damning revelations emerging today that have seen pressure mount on her leadership.

Follow our  live updates of Mr Maguire's appearance at ICAC below.