Scott Disick usually only keeps his lady loves around for about a week.

But Sofia Richie has staying power. The 19-year-old beauty has been dating the 34-year-old bad boy of Keeping Up With The Kardashians for over a month and they seem to be stronger than ever as they were caught kissing in a weekend Instagram story.

This comes just after TMZ reported that his ex Kourtney Kardashian - with whom he has three children - is 'fine' with him dating the teens her.

They can't stop kissing! Scott Disick is seen planting a smooch on Sofia Richie in this social media image shared on Sunday; they appeared to be on a private jet

Scott and Sofia seemed to be kissing in a private jet.

Disick often uses a jet to go to parties and Sofia's father Lionel lets his girl use luxury jets quite often, so it could have been either one of their jets.

The kiss was on the lips and looked like it took place over a meal. Sofia wore a black top as Scott had on a white one.