UPDATE: 

Sources have confirmed to E! News that Rob Kardashian and Blac Chyna are dating, but there is "concern" on whether or not it's for real romantic reasons as the insider feels that she is "preying" on Kardashian "during a weak time." The source also added that they are concerned that she is using him to get back at his younger half-sister Kylie Jenner, who is currently in an on-again-off-again relationship with Blac Chyna's ex-fiancé Tyga. The two have been involved in a feud for a long time.

"She and Rob have known each other for a while now," the source added, explaining that they decided to make it official despite the fact that he's been out of the public eye for some time now. "And she has been staying touch."

ORIGINAL STORY:

Is Blac Chyna dating Rob Kardashian? Blac Chyna, who is rapper Tyga's ex-fiancé and the mother of his son King, posted a photo to Instagram on Monday morning of herself in the arms of a mystery tattooed man. Based on the tattoos, people believe this could be Kardashian as the 28-year-old reality star's ink is nearly identical. There is also no indication as to when this photo was taken.

"The beginning," the caption reads.

What makes this rumored relationship interesting is that Tyga is currently dating Kardashian's younger half-sister, Kylie Jenner.

Apparently, Blac Chyna reached out to Kardashian a few weeks ago to help him lose weight, as he's been struggling with his health recently, and they hit it off, according to Media Takeout. Sources have said that the two are reportedly dating and that they plan to go public with their relationship very soon.

As if Blac Chyna being Tyga's ex isn't awkward enough, she and Rob's sister Kim used to be best friends before Tyga and Jenner started dating, according to Hip Hop Hollywood. Once Tyga, 26, and Jenner, 18, were romantically involved, Kardashian and Blac Chyna cut ties and the whole family even had quite the feud.

Just last month, Rob, who has remained out of the spotlight for over a year,  got sick and was eventually hospitalized when his conditioned worsened, as HNGN previously reported. Once at the hospital, doctors diagnosed him with diabetes and told him that he really needs to lose weight, make some lifestyle changes and dramatically change his diet or things could only get worse.