Bobbi Kristina Brown is set to marry Nick Gordon despite grandmother Cissy Houston branding their relationship “incestuous”, new reports claimed today.

Bobbi Kristina Brown, 19, is said to be totally disregarding Cissy Houston’s wishes, who has slammed her relationship with Nick Gordon as “incestuous”.

A source told Star magazine: “Krissy has told her grandmother that she doesn’t need her blessing to marry Nick, and the more Cissy objects to the relationship, well that only cements Krissy’s decision.

“It’s just a very sad situation. Clearly, Krissy loves Nick, but she has just lost her mother, and her entire world has been turned upside down. Krissy doesn’t think she needs to wait, and points to her mom’s sudden death as the reason to marry Nick.”

Bobbi Kristina Brown is set to marry Nick Gordon despite grandmother Cissy Houston branding their relationship “incestuous”

Meanwhile TMZ reports that Bobbi Kristina is not listening to her grandmother and the website reports she is telling friends she doesn’t care what her family thinks.

A source told TMZ that Bobbi: “Can’t please everyone, so she is going to please herself by doing what she wants to do for once.”

Bobbi Kristina Brown and Nick Gordon were seen sharing a kiss as they enjoyed a pizza parlour date in Atlanta on Tuesday.

She was seen flashing a ring on her engagement finger and reports claim her 22-year-old beau proposed on March 10th.

While Nick Gordon was never formally adopted by Whitney Houston he moved into her home when he was 12-years-old and has lived there ever since.

With Whitney Houston passing away last month Bobbi Kristina and Nick Gordon have been sharing her $1.2 million Atlanta home together.