Cissy Houston Labels Bobbi Kristina/Nick Gordon Relationship as "Incest"

Drama surrounding Whitney Houston's family continues to persist, long after this singer has passed away.

The latest controversy surrounds daughter Bobbi Kristina Brown, who announced this week that she's dating Nick Gordon, a young man taken in by her mother many years ago and raised as her stepson.

Bobbi and Nick went public with their status on Twitter, with Gordon emphasizing there's no blood relation between the two and telling the "haters" they "don't have a brain" if they find anything wrong with the scenario.

Turns out, according to TMZ sources, Gordon was challenging Whitney's mom, Cissy, who a friend claims takes major exception to her granddaughter cozying up to her quasi sibling. She has reportedly labeled the relationship "incestuous" and believes Nick is taking advantage of a vulnerable Bobbi.

Moreover, this mole says Cissy is willing to take an extreme step in order to split the couple up: she's asking Whitney Houston's Estate to legally evict Gordon from the premises.