Christie Brinkley believes marriages should be reviewed every five years so couples can split up easily if they get "bored"

During an appearance on Kristin Davis' Are You a Charlotte? podcast, Christie explained: "'You could get married, like: 'We'll see if you want to renew it in five years'. Every five years, go: 'Do you want to renew?'

"If you're getting bored or whatever, you can get out of it without all the lawyers and all that stuff."

Christie was previously married to Jean-Francois Allaux before tying the knot with Billy Joel in 1975. That marriage ended in divorce in 1981 and she went on to wed Richard Taubman and Peter Cook, who she split from in 2008.

The veteran model has a 39-year-old daughter, Alexa, with Joel as well as son Jack, 30, with Taubman and daughter Sailor , 27, with Cook.

Christie also revealed Sailor helped her set up a profile on an online dating platform so she can search for a potential partner but was shocked to find they were both being paired with the same people.

On the podcast, Christie said: "[Sailor] wanted to see what kind of guys [would match] ... and she put me up there ... and she said: 'Mom, you're right not to go on it, because the same guys that said yes to me, are saying yes to you.' "

Christie speculated on the type of guys who were matching with both her and Sailor, suggesting they were just looking for a woman who would be "impressed" by their choices.

She said: "I find that what men like to do is to find somebody that'll be impressed by every little thing that they do. Like, 'Oh really, oh, you're taking me to that restaurant'."

Podcast host Kristin, 60, admitted she is fascinated by the modern dating world and wants to learn more, even though she is "kind of scared" about the process of finding a partner.

She said: "I'm kind of scared and awed by the whole situation that has kind of evolved in the dating world. And I don't understand it, but I would like to understand it better."