The 37 year old and Kourtney, 41, dated for nine years and share three children together as a result of their relationship, before splitting in 2015.
Despite their long lasting relationship, Kourtney is the only Kardashian sister that has not been married, something which Scott has now said he would change.
Socialite Scott’s confession came in a new trailer for the final season of Kourtney’s family’s reality show Keeping Up With The Kardashians.
In the teaser clip for the upcoming series, Scott is seeing having a tense conversation with his ex-girlfriend Kourtney.
Although not much is given away about the context of his talk with Kourtney, Scott is seen telling her: “I’ll marry you right now.”
Kourtney’s response is not shown in the clip, but she is seen smiling at her former beau as he makes the proposal.
The clip was shared by Kourtney’s mum Kris Jenner, 65, as she promoted the final season of the long-running show to her 39.1million followers.
She wrote alongside the clip: “Our final season of #KUWTK premiers March 18th on E!
“We’re so thankful for the past 14 years & 20 seasons of unforgettable moments and endless memories. We love you guys!!!!!”
Scott is seen once again in the trailer as he sits around a large dining table with the family as they give a “Kardashian woo-hoo.”
The clip of Scott speaking about marriage with the mother of his three children — Mason, 11, Penelope, eight, and six year old Reign — has surfaced after she went public with her new boyfriend.
Kourtney shared a sweet photograph of herself holding hands with Blink-182 musician Travis, 45, after they were first linked romantically in January.
It was reported the pair had been “dating for a month or two” after they were spotted in Palm Springs, California together.
Kourtney shared a photo of her hand, with her perfectly manicured red nails, holding Travis’ tattooed hand with her 111million followers.
Travis further cemented their romance as he responded in the comments section with a black heart emoji and reposted the image on his own Instagram story.