READ: Former enemies back as friends

Us Weekly exclusively confirms that the reality star is behind Blac Chyna and Kylie Jenner'sepic reconciliation, asking the pair as well as her younger brother, Rob Kardashian for a sit down at Caitlyn Jenner's home in Calabasas, California on April 21, 2016.

A source reveals to the publication, saying:

“They spent the day together. It went well.”

The meet had gone so well that the pair, known for the animosity between them resulting from Kylie's relationship with Blac's ex and baby daddy, Tyga, that they had both taken to their snapchat account to share photos with the most shocking captions.

27-yr-old Blac had captioned hers, “Hanging out with my lil sis,” while Kylie wrote on her own post: “When we’ve been best friends the whole time.”

The animosity dates back to 2014 when Tyga had left Blac for Kylie, as confirmed by best selling author, Ian Halperin, recently.

Thankfully, Rob's relationship with Blac and subsequent proposal on April 4, 2016, made it clear that any animosity between the pair, had to be taken care of, as the source reportedly reveals that Kim had known that “things couldn’t go on like this.”

Another insider reveals:

“Kim had been working on this for a long time.

"She told Kylie that whatever Chyna had said about her was because she was hurt. Kim told Kylie to swallow her pride."

Of course, Rob had been beside himself with excitement following the reconciliation, as his post on Instagram showing Blac and Kylie together with the caption, “So happy my girls got to talk and make peace,” suggests.

READ: Star reacts to Kylie Jenner, Blac Chyna reconciliation

This is hardly the first time Kim has played advocate in recent times, as she took the same initiative with Blac's BFF, Amber Rose, almost breaking the internet with a selfie they had both shared following the messy twitter fight between the former stripper, her baby daddy, Wiz Khalifa and rap icon, Kanye West.

Watch video clip below: