Federal MP George Christensen claims he is the victim of a "disgusting smear campaign" peddled by both a Labor MP and a former senior government member.
It was reported on Friday that a government MP had made frequent trips to "seedy" parts of Southeast Asia, causing the Australian Federal Police to become concerned he could be subject to blackmail.
But Mr Christensen hit back on Saturday insisting any trips he made to Asia were to meet with his fiancee and her family, and also for philanthropic purposes.
"All the innuendo is false," Mr Christensen told News Corp.
"Apart from jaywalking or speeding, I have never, in my entire life, committed a criminal offence either in Australia or overseas."
He said he had travelled to the Philippines to visit his fiancee and her family several times since 2017 and had sent her money, while also helping to raise funds for a charity providing disabled children with wheelchairs.
News Corp Australia on Friday alleged the un-named government MP had sent money to multiple accounts in the region, with checks revealing he was visiting "dangerous" neighbourhoods "notorious for prostitution and drugs".
The federal opposition on Friday said it was "extremely concerned" by reports the MP could be open to blackmail over their frequent trips to parts of Southeast Asia.
Speaking before Mr Christensen issued his statement, shadow attorney-general Mark Dreyfus said the government had to come clean as to how much it knew about an AFP investigation.
Mr Christensen said he had never been interviewed by Australian Federal Police, who he says have told him there was no evidence or information to support allegations made against him.
"This whole matter is vile and defamatory, and impacts not only me but my fiancee and my loyal staff who have been abused and threatened because of this putrid smear campaign," Mr Christensen posted to Facebook.
"I have been informed that the person who made the fake allegation to the AFP was a Labor MP and that they have been trying to spread this defamatory gossip about me to the media for a long time."
But News Corp on Saturday reported the investigations into his conduct had begun several months before the Labor party referral to the federal police.
