Blac Chyna & Rob Kardashian have broken up

TMZ is reporting that Rob Kardashian and Blac Chyna have already called it quits on their relationship.

The pair were engaged and preparing for a daughter together.

The reports say that Rob leaked Kylie's number because he was annoyed that his sisters organized a Chyna-free baby shower - but the reason the Kardashian/Jenner sisters did this is because Rob & Chyna had split.

TMZ also says that Chyna agreed with the sisters to have a separate baby shower.

No doubt this is just the start of the story and that it will be ongoing...