Blac Chyna has posted a new selfie with BFF Kim Kardashian, although this time the focus is on their faces and not their equally gigantic butts. The pair are looking uncharacteristically fresh faced as Kardashian seems to have forfeited her usual fifteen layers of contouring face makeup and false eyelashes. Even Blac Chyna is looking relatively low-key, it’s definitely a good look for the pair which they should try out more often!  The photo, which is captioned, "Yay day with my main @kimkardashian" shows the pair hanging out in a car together.

Blac Chyna has been popping up in photos with the reality TV star and new bride of rapper Kanye West for quite a few months now (*that* famous image that Kim posted after a gym session of the pair where her door appears to be bent in the background...*cough* PhotoShop), but we’ve realised that we actually know very little about Kim's BFF!

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We’ve done a bit of sleuth work and managed to dig out a few facts about Blac Chyna so that you guys know what you’re dealing with.

Born in Washington DC in May 1988, 26 year old Blac Chyna is a stripper/video-girl who has appeared in videos for artists including Tyga, Nicki Minaj and Kanye West. When she first began stripping/working in Miami she worked under the name “Cream.”

Blac Chyna is engaged to rapper Tyga an the pair have a son, King Cairo Stevenson, together. When they met back at Tyga’s The F.A.M.E. Tour After Party in Miami in October 2011, Blac Chyna had been working as an urban model/stripper. A few months later, in March 2012, they posed on the cover of Urban Ink Magazine together. Later that year they confirmed that they were expecting a baby together and became engaged in December 2012, three months after their son’s birth.

Blac Chyna is worth around $500,000 and gives her body measurements as 32D-26-41. Yes, that’s right, with a 26 inch waist she still manages to have 41 inch hips (which is predominantly butt). We wonder if Kim Kardashian chose to be friends with her because they have pretty much the same measurements/she’s Kim’s body inspiration? Either way, the pair are pretty inseparable.

Kim Kardashian BFF Blac ChynaKim Kardashian married rapper Kanye West in a lavish ceremony in Florence last month

We see lots of snaps of Kim and Blac Chyna, but what we’re really interested to know is whether they get their kids together for playdates? We’d like to see some pics of King Cairo and North, or do the posing moms leave the little ones at home when they meet up for gym trips/Instagram posing sessions?

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Click here to watch the Kardashians enjoying the DASH opening celebrations