After much speculation about her controversial relationship with "adopted brother"-turned-boyfriend Nick Gordon, Bobbi Kristina Brown has confirmed rumors of their engagement. The announcement appears in a new promo for the forthcoming Lifetime reality TV series, "The Houstons: On Our Own," starring Whitney Houston's daughter with ex-husband Bobby Brown.

"We're engaged," Bobbi, 19, announces to her family between giggles. The celebrity offspring and her new fiancé, 22, grew up together after Whitney took Gordon in and raised him as her own. That being said, the announcement does not go over well with the Houston family.

READ THE FULL STORY AND WATCH THE PROMO AT AOL MUSIC BLOG.