Bobbi Kristina Brown kisses Nick Gordon and shows off mysterious diamond ring

Bobbi Kristina Brown, Whitney Houston’s daughter, not only kissed and professed her love for brother-turned-partner Nick Gordon over Twitter last night, she also showed off a mysterious diamond sparkler on her left ring finger.

Bobbi Kristina Brown, 19, had gotten matching “WH” wrist tattoos with Nick Gordon this week in honor of what would have been Whitney Houston’s 49th birthday, but the loved-up pair were eager to show their love to all 95,000 of the singer-turned-actor’s followers.

“1 of the main reasons why i even smile today.:) iloveyoubooboo, forever&always. <<it’s just US now>>…@Nickdgordon {<3}” Bobbi Kristina Brown tweeted along with the kissing picture.

According to TMZ, Bobbi Kristina Brown and Nick Gordon grew up together after Whitney Houston took him in at the age of 12 when his father went to prison and his mother was unable to take care of him.

Nick Gordon was Whitney Houston’s unofficially adopted son, and she treated him like family up until her death at the age of 48 due to an accidental drowning complicated by heart disease and cocaine use.

The 22-year-old first fueled rumors about their relationship status in a tweet written last March, exclaiming: “Yea we got a little closer and what!!!”

The controversial couple have reportedly been sharing her $1.2 million Atlanta home together ever since.

“No matter what…This connection between us will #STAYSTRONG 4EVER! We will love & miss u 4ever lady:) & still through those trials & tribulations the devil kept on trying to break them & soon realized…He couldn’t,” Bobbi Kristina Brown wrote.

By the age of 30 Bobbi Kristina Brown will have inherited everything that belonged to her iconic mother – money, jewellery, cars, etc.

She recently did a guest stint on Tyler Perry’s sitcom For Better Or Worse.

And the mourning starlet is currently filming her blooming love for Nick Gordon on her upcoming reality show, The Houston Family Chronicles, which is set to premiere on Lifetime next month.

Bobbi Kristina Brown was seen clutching Nick Gordon’s thigh while they watched the Billboard Music Awards together back in May, and the teenager was seen wearing the same diamond sparkler that night.

The duo batted away rumors of an engagement shortly after and last month, according to Hollywood Life, they both decided it wasn’t the right time to wed.

“Bobbi and Nick really love each other,” said the source.

“But they just can’t figure out how they want to define their relationship. Bobbi felt like she got swept up in the moment because she was going through a lot of emotions after Whitney’s death. But they’re in love and still together, just not engaged.”

Bobbi Kristina Brown’s grandmother, Cissy Houston, has branded their relationship “incestuous” in an interview with TMZ.

Despite family feuds over the matter, the Houstons are expected to unite later this month to honor Whitney Houston’s memory with the posthumous release of her final feature film, Sparkle.

The Salim Akil drama is scheduled to premiere on August 17.