Justin Bieber's Giant Hickey - Did it Come From Kendall Jenner After Mason Disick Pool Playdate?

Last weekend, Justin Bieber posted an Instagram photo of his playdate by the pool with Kourtney Kardashian and Scott Disick's son Mason Disick. According to People, Bieber "has been mingling with the Kardashian-Jenner clan a lot," sparking rumors he might be dating Kardashian's half-sister, Calvin Klein spokesmodel, Kendall Jenner. TMZ reports that Bieber stepped out on Friday night with what looks like a massive hickey and rumor has it the spectacular mark might be from his rumored girlfriend -- Jenner.

Rumors of Bieber and Jenner's alleged relationship seem to have started circulating when Jenner was seen at Bieber's Comedy Central Roast. Later, Bieber and Jenner appeared together on the cover of Vogue's "Brat Pack" issue along with Ansel Elgort, Gigi Hadid and others. In one photo from the spread, Bieber was captured with his arm around Jenner and bare-chested with his rumored girlfriend in another.

If Bieber and Jenner aren't dating, there doesn't seem to be any explanation as to why Jenner would be at a comedy event or why Bieber would be hanging out with the Kardashian-Jenners. Also, considering Bieber's reputation as a professional belligerent teenager, it seems unusual that he would be trusted with a kid near a body of water unless the kid was his girlfriend's sister. Of course, there is also the possibility that Bieber's poolside Instagram photo is part of an attempt to distance himself from his recent legal troubles that have come to light. However, Bieber and Jenner haven't confirmed the rumors of their teenage hormone-fueled love.