And now her much younger lover, Ray J, 27, has written a song dissing Brown and detailing his sex life with Houston.

In Ray J's "Boyfriend," off his just-released album, "All I Feel," which debuts this week, Ray J croons, "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."

The feeling between Brown and Ray J seems to be mutual. While Ray J is more blatant in his diss, Brown tries to be subtler.

In his book, Brown writes:

"For those of you who want to know, I'm aware of the fact that Whitney had been seeing Ray J, a very young R&B artist who is most famous for being the little brother of Brandy, the multi-platinum singing artist and TV star.

"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."

At least Whitney hasn't starred in any sex tape. Ray J shot to national attention after he marketed a sex tape of him and ex-girlfriend Kim Kardashian in flagrante.

After that video was released, with Kardashian's blessings (she also rose to fame on the wings of the tape), Ray J signed a deal with Vivid Entertainment to direct porn.

When he started dating Houston, Ray J would take any opportunity to have a picture with the diva - and friends were concerned their love life would end up on the Internet, as well.