Rihanna Disses Justin Bieber After Instagram Holiday Flirt? Selena Gomez's Ex 'Too Cute,' Can't Handle Dating Chris Brown & Drake's Wild Ride! Twitter Fans Agree?

So, earlier this week, Justin Bieber did something really random. Weird, right?

The "As Long As You Love Me" crooner shared a sexy photo of Rihanna flaunting nothing but a racy bra:

The rather bizarre Instagram post was quickly deleted. Hopefully Bieber's hip-hop "bro" Chris Brown doesn't take any offense...

Especially since the "S&M" goddess has no romantic interest in Selena Gomez's 20-year-old ex-flame - at all!

(RELATED: Justin Bieber & Rihanna Instagram Flirt, Chris Brown Jelaous? Singer Single Amid Hailey Baldwin Dating Buzz)

Apparently, the 26-year-old Barbadian songstress found the Biebs' Instagram flirtation very "flattering." But if anything, she views him more as a cute younger brother.

An alleged "insider" tells the infamous gossip webloid HollywoodLife.com:

"She thinks that's just too cute and flattering! She 'hearts' Justin and is a big fan of his work, but unfortunately she doesn't think he was being anything but sweet and nice. Besides, Rihanna's a big girl. She don't know if Justin's ready for all she's got."

Perhaps Bieber isn't "bad" enough for the "Pour It Up" wild child.

"She's picky about height and said 'I want to pinch Justin's cheeks but that's it. He's cute but you got to be at least six feet tall to ride this ride,'" the source explains.

Ouch? But understandable!

Breezy, Drizzy Drake... does it make sense for a JB romance to follow?

What do MstarsNews fans think about Bieber's holiday post dedicated to the R8 muse? Any thoughts as to why he deleted it so fast? Check out some Twitter reactions...

@FentysWife: "Why Did Justin Bieber Post That Pic Of Rihanna And Then Delete IT?"

‏@ShlokersG4L: "I know that justin bieber did not post a photo of rihanna on his chlamydia infested Instagram page."

@turntbreezy: "MEDIA BE LIKE 'JUSTIN BIEBER DATES RIHANNA.'"

@biebertomic: "Why u delete Rihanna's picture? Turn on ur location i wanna fight @justinbieber."

@obsessedwthjari: "OMMGGG JUSTIN POSTED A PHOTO OF MY QUEEN IM SOO HAPPY @justinbieber @rihanna."

Now that would make an interesting rebound Hollywood couple...