The pair has had a tumultuous relationship over the years, as Amber formerly dated Kim's husband Kanye West and the pair split on bad terms.
The picture is even more surprising following Kanye's now infamous Twitter rant against Wiz Khalifa, the father of Amber's son, reported People magazine.
Following the rant, which Kanye deleted, Amber took to Twitter to make her own contribution, in which she made some comments about her and Kanye.
But now 35-year-old Kim set social media alight when she posted a shot of herself and Amber, alongside the caption: "Tea anyone?"