First photos of Leonardo DiCaprio and Rihanna together

TMZ just obtained the first photos of Leonardo DiCaprio and Rihanna pictured together since news hit town that the A-listers are dating. The actor is pictured standing next to the singer at her birthday party two weeks ago. See the TMZ report after the cut...

Rihanna and Leo DiCaprio should be a perfect match -- neither's into settling down with one person for too long -- but now that they're banging ... one of them is way more committed than the other.

We got pics of RiRi and Leo getting cozy recently at her birthday party -- which he helped organize -- and sources at the bash tell us one thing was clear ... Rihanna's the clingy one.

We're told Leo is affectionate enough -- they engaged in plenty of PDA -- but he could barely get a moment to himself. As one source put it, "she's the baddest bitch in the party, but she's following him everywhere."

We're told they've been hooking up for about 3 months, but it's still not exclusive -- more like they're each other's first choice. Not that anyone's crying for either of them. #LeoProblems