Chris Brown and Rihanna: Totally Hitting It!

Chris Brown and Rihanna are hitting it again for real. No, not in the way he hit her before. We mean in the sexual sense. They're hittin' it! We clear? Nice.

All kidding aside, it looks like their rumored nightclub makeout session was real.

The rumored NYC hookup was more than just rumor. A second set of sources now claims they arrived five minutes apart, and quickly ended up at the same table.

They mauled each other in plain sight - people inside the club say the duo were kissing and hugging out in the open - then disappeared into bathroom for 20 minutes.

What went on in there? Only Rihanna and Chris Brown can answer that.

What's more, not only were the former lovers all over each other at Griffin nightclub in the Meatpacking District late Monday, they caroused at her hotel for hours after.

The two left the club separately, but hours later, Chris was spotted leaving the Gansevoort Hotel, where Rihanna was staying. So you do the math on that.

Incidentally, Chris' girlfriend (or ex-girlfriend, depending on who you talk to) Karrueche tweeted that Chris sent her roses, a teddy bear and chocolates Tuesday.

What a sweetheart he is ... thoughtful, classy and gentle. Caring.