The cheeky shot shows Kourt, 37, resting her perky derrière on a balcony railing while she chats to sister Kim.

She wrote: “I don’t think you ready for this jelly.”

And before sharing that picture, she posted a sizzling bikini snap with Kim’s assistant Stephanie Sheppard, which was simply captioned: “Honeymoon.”

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Despite the telling shots, sources have said the reality star isn’t fazed by her former lover’s behaviour.

“They were never ‘back on,'” an insider told E! News after the pictures surfaced of Scott looking very cosy with a stunning model and later a mystery blonde.

“They don’t even live together.”

While another source told ET: “Kourtney could not care less that Scott hooks up with other girls. They are broken up.

“There has been no chance of reconciliation for quite some time now.”