"He must of seen me walk past him on the plane with my bub and talked to the flight attendant about swapping seats with me," she told AAP.
"Pretty sure they said that he's done stuff like this before, which I thought was really nice.
"I waited after the flight to thank him. He casually replied that he hoped it made it more comfortable.
"He was very modest about it all. Such unnecessary generosity."
Johns' act of kindness comes after Nine axed the rugby league Immortal from its 2015 grand final coverage after an alleged drunken incident at Toowoomba airport.
Johns later apologised to a married mother-of-three after allegedly making sexually explicit comments to her before he was photographed asleep next to two garbage bins.
- AAP