Jay-Z 'Cheating' On Beyonce With Sexy Blonde? Forget Rihanna 'Hook-Up,' Rapper 'Creeps' With NYC VIP Vixen Casey Cohen, Baby Blue Ivy's Mom Debates Divorce?

Rumors initially suggested that Jay-Z had a sexy "fling" with hip-hop princess Rihanna behind Beyonce's back. But now rumors are even more scandalous - apparently, the Magna Carta... Holy Grail rapper is cheating on his stunning wife - with a pretty NYC nightclub hostess named Casey Cohen!

UPDATE:UPDATE: Jay-Z & Casey Cohen 'Hook-Up' Ignites Beyonce Cheating Scandal: Fans Peeved With 'White Girl' Love 

Jay-Z & Casey Cohen 'Hook-Up,' Beyonce Wants Divorce? Meet Sexy Blonde 'Long Island Princess' Allegedly Cheating with Rapper [PHOTOS]

The (rather seedy) story's still developing, but according to the infamous gossip webloid MediaTakeOut.com, Queen Bey's definitely considering divorce this time - the "Drunk In Love" diva's had enough of HOV's deceitful ways (via InTouch magazine).

So, here's the deal (allegedly).

Miss Cohen is a blonde bombshell who entertains the VIP section at NYC's legendary 1Oak (a favorite celebrity hot-spot). An alleged InTouch insider reveals:

"Jay probably sees her twice a month. He visits her while she's working and then they slip away for an after-party, She'll hang out with him all night, flirting with him and touching him..."

And Cohen is just one of Jay's many sexy "side chicks." Apparently, he's been fooling around on Bey for awhile...

Baby Blue Ivy's mom knows that her hubby can't change his ways, so she's preparing to end the marriage.

Do Mstars fans believe it - or just crazy, over-dramatized gossip?

The hip-hop power couple still seems totally infatuated with one another... so what's the deal?

FYI - not sure if this is the SAME Casey Cohen, but this chick's a star of Bravo's hit reality series "Princesses: Long Island" - check out her bio.

Again, this is all just HEARSAY - and there's no proof that these two Cohens are the same person allegedly "hooking up" with Jay-Z...

Her online profile does read:

"...When she isn't working on her art or staying fit at SoulCycle, she works for the hospitality company The Butter Group: Butter, 1OAK, and The Darby."

Yup - coincidence?

Surly nothing will come of these shady rumors - once again.