WORLD SECRET EXCLUSIVE: Chris Brown's Girlfriend Karrueche . . . Is DATING A WOMAN . . . And We've Got PROOF!!!

 has been hearing WHISPERS for some time about the BUDDING relationship between Chris Brown's ex-GF Draya (from Basketball Wives) and his NEW GF Karrueche.

At first we didn't think much of it . . . but new evidence suggests that the two girls are "dating."

If you look at Kae's Instagram from My 31st . . . she openly tweets about being "on a date" with Draya, a former SKRIPPER and GROUPIE. Then, two days ago,both ladies took to twitter . . . excited about going on "a date." It turns out Draya and Kae were together that night too.

Wow . . . we like Kae a LOT MORE now that we know how she