In a new sneak peek into the new TV show "The Houstons: On Our Own", Kristina, 19, said that Gordon had proposed her but she doesn't get approval from some members of the family, reported Ace Showbiz.
Kristina and Gordon got close after Whitney passed away early this year.
"We're just close just going through her mom's passing and grieving together," Gordon once tweeted.
They first sparked engagement rumours when she was spotted wearing a large diamond ring during a PDA-filled outing. They vehemently denied it back then.
The engagement news caught the family off guard. Bobbi's aunt Patricia called the engagement "unacceptable."
Gary Houston, Whitney's brother was equally surprised.
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"No one knew that from a godson you would turn into a boyfriend. No one knew that. The family has me out to be a bad person. They want to see us fail... We won't," Gary said.
The reality TV series will premiere on October 24.