Star Magazine’s cover story looks interesting this week – they’re forgoing the unholy Bermuda Triangle in favor of Young Hollywood Drama, in the form of “Justin Timberlake and Rihanna: It’s On!” Unlike this week’s Us Weekly story, in which they allege Justin Timberlake and Jessica Biel already broke up a month ago, Star’s cover story only claims that Jessica and Justin are “cooling”. It seems that the Justin and Rihanna rumors are hear to stay though – Star claims that they’re “turning up the heat” and are having “secret” hookups. One passive-aggressive “source” tut-tuts about Jessica’s feelings on the matter: “She must be a wreck.”

While Justin Timberlake’s relationship with Jessica Biel cools, he’s not wasting any time turning up the heat with Rihanna!

After a hot grinding session on Sept. 13 at 1Oak’s MTV Video Music Awards bash in NYC, RiRi and JT moved to her hotel room, where they had a steamy, private after party!

“They tried to keep it a secret, but Jessica found out within days,” a source says. Justin’s three-year relationship with Jessica seems to have reached a critical point. “She must be a wreck.”

“Rihanna and Justin have been talking and texting on the phone nonstop since the VMAs,” a source tells Star. But before Rihanna totally gives in to the attraction, she wants to make sure she’s not his lady on the side. A friend reveals: “She asked him on the phone, ‘Are you still with Jessica?’ And he hinted that things were cooling off between them.”

Star was first to break the news that Justin and RiRi were hooking up in last week’s issue, but now things are getting hotter — the passion even moving to the studio where the two are working on Rihanna’s new album. “One time, Justin was joking about strippers. He said she needed to entertain him like that.” So Rihanna gave him an impromptu lap dance! “She likes to test the boundaries.”

Justin has made it clear he is 100 percent into Rihanna, and she equally feels the magnetic attraction, says a source. “She is a total tease and loves flirting with him. She digs him and wants to date him too!”

[From Star Magazine]

Although I don’t really think much of Justin, I tend to believe he’s the kind of guy who would break up with Jessica before starting something with another girl. Although Justin gives off the whiff of occasional-dirtbag, I don’t have him pegged as a big-time cheater or randy womanizer. So, while I think there could really be something going on between Rihanna and Justin, I doubt that Jessica still believes they’re in a relationship. I really think they’re broken up. And we all know Justin doesn’t waste any time moving on to his new girl.

Justin Timberlake is shown on 9/20/09. Rihanna is shown in Berlin on 9/29/09. Credit: WENN.com