Blac Chyna has fuelled rumours she's engaged to Rob Kardashian.

The pair, who started dating in January (16), have always moved fast in their relationship, even moving in together after just a couple of weeks.

And on Tuesday (05Apr16), Blac appeared to confirm allegations she is set to wed the reality star by posting a snap of the pair looking blissfully happy on her Instagram page.

The snap showed glamour model Blac flaunting a giant diamond on her ring finger, while squeezing the cheeks of her beaming beau. She captioned the picture with a simple: "YES !...!...!"

Fans were quick to offer their congratulations to the couple under the Instagram post.

The picture comes just days after Blac's mother, Tokyo, flew to Los Angeles with her husband to meet Rob and spend quality time with her grandson, King Cairo, whose father is rapper Tyga.

A source tells TMZ.com Rob made a great impression on Tokyo, who believes the 29-year-old may be "the one". The insider adds Blac's mum was particularly enamoured by Rob's positive attitude, his good manners, and the way he treats her daughter "like a queen".

Tokyo officially gave the relationship her seal of approval by showing off a photo of herself and the happy couple on Instagram.

It is not yet known if Rob's mother Kris Jenner has had the chance to spend more time with Blac since the model, who was previously close friends with Kim, became romantically involved with the sock designer.

During an appearance on Australian radio's Kyle & Jackie O Show last month (Mar16), Kris insisted she harbours no grudge against Blac - she just hasn't had the opportunity to get to know her.

"She seems like a really nice girl but I just haven't been around her," she explained. "I don't know much about their relationship. I haven't really seen her that much and I don't know her as well as everyone else."

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