OK, so he is technically not related to her by blood, but they were raised as siblings. So it's pretty fucked up. From E Online: ow does the family of Whitney Houston cope after her death? Now we can find out. We have a special sneak peek promo of A&E Networkâ€™s latest reality show, The Houstons: On Our Own, which shows how Whitneyâ€™s loved ones have tried to move on since her passing. And for Bobbi Kristina Brown, that means getting engaged. Rumors of the 19-year-oldâ€™s engagement to boyfriend and adopted brother Nick Gordon have been swirling around the Internet for quite some time now, but Bobbi kept denying the claims. In the clip, youâ€™ll see the drama revolving around Bobbi Kristina and Nickâ€™s love affair (apparently, not everyone approves) and through what sounded like a nervous giggle, Bobbi announces, â€œWeâ€™re engaged!â€ Watch to see how they took the news and catch the premiere of The Houstons: On Our Own on Wednesday, Oct. 24.