In a move impossible to express with fewer than two hyphens and two possessive apostrophes, Rob Kardashian is dating his half-sister's boyfriend's ex-fiancee.
The 28-year-old Kardashian brother, who is rumoured to have fallen out with his family after he decided to leave their reality show in 2014 (and, um, posted an Instagram picture implying that his older sister Kim was a psychopath), has reportedly started dating exotic performer Blac Chyna, a woman who did not appear to like Rob's half-sister Kylie Jenner very much after Kylie started dating the father of Blac Chyna's child while still a child herself.
Oh, and did we mention that Blac Chyna is also good mates with Amber Rose, the ex-girlfriend of Rob's brother-in-law Kanye West who once called Rob's sister Kim a "whore"? Because there's also that.
According to E! News, Rob and Blac Chyna (real name: Angela Renée White) started dating at the start of this year, after staying in touch during 2015, a period of time in which Rob was rarely sighted in public.
The couple seemed to confirm their relationship when Blac Chyna posted an Instagram picture featuring herself cuddling up to a man's arm with identical tattoos to one Rob Kardashian.
Unsurprisingly, Rob's family are not thrilled.
A "source" told E! that the family are "confused" by Rob's decision to date Blac Chyna, and have expressed concern that she is "preying" on him during a "weak time" in his life.
Another "source" told People Kylie Jenner was "livid" about the news.
"She feels super betrayed and can't understand why someone in her own family would stab her in the back like that," they said.
To add insult to injury, Rob has resurrected his Instagram account this week, only to post a bizarre meme which implied that, as the only Kardashian brother, he would have children with Blac Chyna in order to take full advantage of patriarchally-based naming conventions and claim sole ownership of the Kardashian surname.
(Eldest sister Kourtney has three children with her ex-boyfriend Scott Disick, who each have his surname, while Kim Kardashian and husband Kanye West's children, North, two, and newborn Saint, also have their father's surname.)
Blac Chyna has a complicated history with the Kardashian family.
Circa 2013, she and Kim Kardashian were quite good friends, with Blac Chyna attending Kim's 33rd birthday party in Las Vegas.
However, things took a turn for the worse in 2014 when Blac Chyna's then-fiance Tyga ended their three-year relationship to start dating the youngest Kardashian sister, Kylie Jenner, who was 17 at the time.
From there, Kylie and Blac Chyna became locked in an odd Instagram war during which it was possible that Kylie was copying Blac Chyna's pictures, but also possible that women of a certain aesthetic and audience just tend to post pictures of themselves wearing legging and crop top sets in their open-plan mansions. Regardless, things have been pretty frosty since.
After Tyga gave Kylie a white Ferrari 482 Italia (with a casual $320,000 price tag) for her 18th birthday, Blac Chyna reportedly spread rumours that Tyga could not have afforded the car, and instead leased it in Kylie's name.
This then prompted an odd Instagram back-and-forth between Tyga and Amber Rose (Blac Chyna's good mate, see above) in which we all learnt that everyone has nice cars.
Although no member of the Kardashian family has officially commented on Rob's new relationship, his mother Kris posted a cryptic Instagram post on Monday, which stated she had a "challenging Monday" but provided no further details.