Justin Timberlake and Rihanna a Couple?

Who is Justin Timberlake dating? Is it Jessica Biel or Rihanna?  The tabloids have been buzzing for a week about Timberlake, Biel and Rihanna and the celebrity love triangle.

FOX411 says that the three-year relationship between Timberlake and Biel is over. Justin is now in a rebound romance with Rihanna. A source told Fox411:

Justin and Jessica did break up. They were very busy living separate lives this summer and they drifted apart. Justin broke up with Jessica weeks ago, but he’s a good guy and he does care about her. They will always stay in touch because he works very hard at friendships with his exes.

Justin and Rihanna have been working frequently in the studio and they have amazing chemistry with or without the music.

Over VMA weekend, they spent quality time together and got a little naughty at Jay-Z’s club, 40/40. Justin and Rihanna were having fun and there was a lapdance involved. They are way beyond co-workers.

Justin and Rihanna? Will the two super talented performers be the next celebrity couple?  The Fox411 source says the couple probably won’t be a long-term couple, because Justin is a private guy and dating Rihanna would be hard to keep under the radar.