Rihanna and Chris Brown Back Together in Twitter Pic: RiRi Straddles, Kisses, Snuggles Ex-Beau in Intimate Instagram PHOTO

Rihanna and Chris Brown hinted for months that they have rekindled a blossoming romance, and now it looks like there's official proof - through an Instagram pic posted on Twitter by the "Diamonds: songstress, nonetheless! In the intimate photo, RiRi is seen straddling her ex-beau, snuggling and canoodling in his arms while planting a big kiss on his neck. It doesn't get much more obvious than that!

Along with the Twitpic posted on Friday (Nov. 30), RiRi tweets:

‏@rihanna: "fu##yopictures i dont wanna leave!!! Killed it tonight baby!!!"

Apparently the Barbadian beauty jetted off to Frankfurt, Germany to catch Brown's "Carpe Diem" world tour performance. And the two appear as happy and comfortable together as ever.

Although nothing is "official," it's obvious that Rihanna and the "Don't Wake Me Up" singer are most-definitely back together. The couple has been spotted spending ample time partying together ever since Brown broke things off with his ex-girlfriend, model Karrueche Tran. Following her 777 Tour, Rihanna also flew out to Berlin to join Brown on his tour and celebrate the Thanksgiving holiday together. Over the holiday weekend RiRi posted this pic of a shirtless Brown lounging on her bed:

Oh, and the duo just got a pair of matching Rolexes:

@rihanna: "Don't believe me just watch #newtoy #justcusimnumber1 #roleylife #dopedealer."

In a recent interview with "Power 106 Radio," Brown told host Bad Boy - "[We're] working on our friendship... As far as our personal life, I think people just got to give it a chance -- or not even give it a chance, but shut the hell up... It's me. At the end of the day, whatever opinion they have ain't going to change nothing I'm doing."

And apparently Rihanna agrees (even after the couple's controversial breakup in 2009, and Brown's recent and offensive Twitter rant against comedian Jenny Johnson).

And rumors have it RiRi plans on bringing Brown home to Barbados for the New Year to try and have him win over the hearts of her doubtful family and friends. Evidently, things are going strong for the "Unapologetic" songstress and her R&B sweetheart!