THE first images of Sebastian Joyce, the newborn son of former Nationals leader and deputy prime minister Barnaby Joyce and his partner Vikki Campion, have been revealed.

Seemingly already adjusting to a life of jetsetting, the three-week old baby was caught with Mr Joyce and Ms Campion at Armidale Airport, New South Wales.

The tired-looking duo appear to be enjoying a coffee, while Ms Campion cradles baby Sebastian, who was born on April 16, weighing 3.2kgs.

Mr Joyce is separated from his wife, Natalie, with who he raised four children: Julia, Caroline, Odette and Bridgette.

Sebastian is Mr Joyce’s fifth child, and his first son, but for Ms Campion, the newborn is her first dive into motherhood.

Just a couple of months prior to the child’s birth, Mr Joyce spurred speculation as to whether the baby was actually his.

In early March, he told media that it was a “grey area” as to whether Sebastian was actually his child.

However, Mr Joyce knows the baby is his. According to The Courier Mail, he acknowledged over a few beers with some friends that it was wrong of him to question Sebastian’s paternity.

Mr Joyce is said to be in a happy and loving relationship with Ms Campion, his former staffer, but the affair took a serious toll on his family.

In February, Mr Joyce’s wife Natalie shared her devastation about her estranged husband’s relationship with Ms Campion.

“I am deeply saddened by the news that my husband is now having a child with a former staff member. I understand that this has been going on for many months and started when she was a paid employee,” Mrs Joyce said.

“This situation is devastating on many fronts. For my girls who are affected by the family breakdown and for me as a wife of 24 years, who placed my own career on hold to support Barnaby through his political life.”

Mr Joyce lost his cabinet position and the Nationals leadership after his affair with Ms Campion was revealed.

It also prompted Prime Minister Malcolm Turnbull to introduce a “bonking ban”, prohibiting ministers from having sexual relations with their staff.

In an interview in February, Mr Joyce said only God could judge him on his conduct.

Both he and Ms Campion said they feared their son would be viewed “somehow less worthy than other children”.