Floyd Mayweather, 50 Cent Beef Prompts New Ray J Song 'I Hit It First Part 2?' Singer Spotted Kissing, Cuddling, 'Cheating' with Boxer's 'Girlfriend' Princess? [PHOTOS]

The drama never seems to end for Floyd Mayweather. Just a few weeks ago, rapper 50 Cent refueled his ongoing beef with the undefeated boxer by posting some suggestive photos/messages on Instagram... as Mstars previously reported:

Check out these viral Instagram posts where the Get Rich or Die Tryin' rapper calls-out one of Mayweather's many "girlfriends" on secretly hooking-up with Kim Kardashian's ex, Ray J!

50 Cent: "I GOT FLOYD, I GOT RAY J At the same damn Time."

The lovely lady in this pic is known as Princess... allegedly one of Mayweather's several "infamous" girlfriends. According to MediaTakeOut.com, Princess is Mayweather's third main squeeze... coming in after fiancee Shantel and baby mama Melissa.

Fifty also posted:

50cent: "@Floydmayweather don't feel Stupid some of them belong on a TRACK that's all #smsaudio."

50cent: "THOT ALERT look at the dog Lmao #smsaudio."

50cent: "This is Floyd message to the girl lol."

50cent: "Ray j said my time is money. LMAO."

Crazy stuff. Ray J might have a LOT to explain to Mayweather... because according to MediaTakeOut.com, there's now visual PROOF that the "I Hit It First" crooner slept with Princess!

The infamous gossip webloid MTO recently posted exclusive photos of Princess kissing Ray J while snuggling in bed (while she was still dating Mayweather).

As MTO puts it - "Floyd met Princess while she was "dancing" at Spearmint Rhino in Las Vegas. The two hit it off and Money May immediately spoiled her rotten... buying her anything and everything her heart desired. Dude gave her money, fame... and some CHAMPIONSHIP D*CK. And in return... she pulled a SCANDAL MOVE on him."

Check out the sexy "hook-up" photos here. So, what do Mstars readers think?

Now, there's even MORE photos that suggest Ray J and Princess were (are) more than just friends... earlier this week, Ray J allegedly posted a photo of himself kissing Princess on Instagram with the hashtag "LasVegas" (at least according to MTO)...

Not only that, but rumors suggest that Ray J's penning a new romance tune... entitled "I Hit It First Part 2!" Wonder which "celebrity" couple he might be referring to this time...

What do Mstars fans think of all that?