It was just this week that it was alleged that Bobbi Kristina Brown was dating her "adopted" brother Nicolas Gordon, who her mother took in when he was 12-years-old. However, it's thought that the two are already engaged.
Bobbi Kristina and Nicolas were spotted out in Atlanta grabbing a pizza and the paparazzi zoomed in on a giant rock on her finger, which is said to be an engagement ring.
Cissy Houston, Bobbi's grandmother, has came forward to blast the couple's relationship, saying that it's incestuous, seeing as how the two thought of one another as brother and sister, and Whitney thought of Nicolas as her son. Cissy spoke exclusively with TMZ, saying "What they're doing is incestuous," and added that she thinks Nicolas is taking advantage of Bobbi Kristina.
It was also claimed that Cissy is trying to get the Whitney Houston Estate involved in an attempt to get him evicted from Whitney's $1.2m Atlanta townhouse, where he is apparently currently living alongside Bobbi.