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R&B star Brandy's little bro Ray J -- current paramour of Whitney Houston -- sings in his new single Boyfriend ...

"Is that your wife, is that your shorty, well I'm her boyfriend . . . I think the problem is you don't beat it right . . . Making love is cool, just pull her hair sometimes."


Dayum! Well I guess it's his prerogative!

So what does Whitney's ex, Bobby Brown have to say about that? The New York Post points out that in Bobby's new autobiography, The Whole Truth and Nothin' But," the former BBDer takes the high road:

"Their relationship doesn't bother me. She's open to see whoever she wants to see, just like I can see who I want to see. I know the age difference between her and the little guy is 20 years, but to each his own. The only concern I had was how our daughter felt about the age difference. As long as she's cool with it, it's fine by me."