Rob Kardashian caused uproar on Instagram with just a single post. The youngest of the Kardashian clan posted an intimate selfie sent to him by model and former girlfriend of R&B singer Chris Brown, Karrueche Tran, Us Weekly reported. Fans were quick to question their relationship, which forced Kardashian to delete the post altogether.

Kardashian, 28, uploaded a screenshot of a selfie that Tran sent him, and fans were able to see the model's face up close on his Instagram page, along with the name that Kardashian has her saved under in his contacts, according to E! News.

"I like it when she [sic] send me pictures," Kardashian captioned the Instagram post, with the endearing "Karroooooooooochieeeeeee" at the top of the screenshot proving the photo was sent from the 27-year-old model herself.

Shortly after uploading the shot, fans started asking Kardashian about their relationship and pointed out that Brown doesn't take kindly to men who get too close to his ex-girlfriend. Brown allegedly called out Marques Houston and Tyson Beckford on social media after being romantically linked to his ex, according to Us Weekly.

Kardashian changed the caption of his post to clarify that the two are friends.

"Yall dumb af," Kardashian wrote in his edited caption. "I been Friends with [sic] Karoooooch since high school. F-k outta here with your negative s-t."

But he deleted the post shortly after the edit. A source close to the Kardashian family confirmed that the two are not romantically involved and blamed the whole social media blip on Kardashian's "bizarre sense of humor," according to E! News.

See a screenshot of Kardashian's now-deleted Instagram post below.