But Heaslip did reveal that he once looked into a move abroad and admitted that he wouldn't blame Sexton if he did move on.
"I hope Jonny stays. He is a world class player and obviously I don't want him going anywhere," Heaslip told the Irish Examiner.
"But it's up to him whether he stays or goes, if he's happy with the terms or not.
"I know he is delighted like the rest of us to play for Leinster and be part of that organisation, but again there are all sorts of different things in play there.
"This is a game we would play regardless of whether we were getting paid or not, but you have to take into consideration the time period we can play, and you effectively start from scratch once you finish rugby in your mid-30s.
"You have to look after yourself to a certain degree and you have to weigh up what you get versus where you are going to be, and the only player who can tell you how that scale works is yourself.
"I looked into doing something similar to James Haskell, where he went to play in Japan and then the Super 15 before coming back, but it wasn't to be for me.
"I thought it would be cool to go and work in other countries and experience different things, but there will be plenty of time for travelling when I've finished playing rugby. I'm more than happy where I am."