Whitney Houston's daughter is engaged to Nick Gordon, and although Whitney once referred to Nick as her son, Bobbi Kristina insists she's not marrying her brother! In a Facebook post, Bobbi attempted to clear the air writing, "Yes, me and Nick are engaged. I'm tired of hearing people say 'Eww you're engaged to your brother' or 'If Whitney was still alive would you be together or would she approve of this?'" She also added that her mother never adopted him and in fact it was Whitney who knew the two would date one day! Bobbi Kristina recently shared some new photos of her fiance calling him a phenomenal man and saying she has never been happier!