BOBBI KRISTINA IS THAT AN ENGAGEMENT RING ON YOUR FINGER?

Whitney Houston's daughter was sporting an interesting piece of jewelry on her ring finger during her PDA-filled stroll with her "adopted" brother this week ... a big, fat ring.

As we previously reported, Bobbi Kristina and Nick Gordon finally went public with their relationship this week ... holding hands and kissing during a lunch date in Atlanta.

Now, with rumors swirling about a possible engagement ... the massive ring on Bobbi's finger isn't doing anything to hint otherwise.

Congrats ... maybe?

I'M NOT COMMITTING INCEST - BOBBI KRISTINA!

Whitney Houston's daughter Bobbi Kristina isn't fazed by her granny's accusations she's committing incest by hooking up with her "adopted" brother -- telling friends, she's gonna do what she wants ... no matter what.

Sources close to BK tell TMZ, the 19-year-old finally 'fessed up to her close buddies ... she and 22-year-old Nick Gordon are dating -- ten years after Whitney unofficially adopted the boy because he was having problems at home.

TMZ broke the story ... Bobbi's grandma Cissy Houston saw the video we posted -- showing Bobbi and Nick holding hands and kissing on a lunch run in Atlanta this week -- and told a close friend, "What [Bobbi and Nick] are doing is incestuous."

But Bobbi couldn't care less -- telling friends ... she doesn't give a damn about what Cissy thinks about her controversial relationship ... and because Nick's not her blood brother, she definitely doesn't consider it incest.

As one source put it -- Bobbi "can't please everyone, so she is going to please herself by doing what she wants to do for once."

As for the maybe engagement ring Bobbi was wearing -- we're told she's been mum on what it means ... but cryptically told friends, she and Nick ARE planning a trip to Vegas in the near future.

CISSY HOUSTON UPSET OVER BOBBI KRISTINA/NICK GORDON HOOK-UP

Bobbi Kirstina Houston’s grandmother, Cissy Houston is reportedly upset over a relationship that is developing between Bobbi a kid named Nick Gordon, who Whitney Houston informally adopted when he was a child.

Cissy has been telling friends that “What they’re doing is incestuous.”

She thinks that Nick is taking advantage of Bobbi during her time of grieving. She’s even trying to get Nick kicked out of Whitney’s home. He’s currently living there with Bobbi.

There’s a video of them holding hands and kissing, above.

CISSY HOUSTON KICKING 22-YEAR-OLD MAN OUT OF WHITNEY HOUSTON'S HOUSE

Whitney Houston’s mother Cissy has hired lawyers to evict a 22-year-old man named Nick Gordon from Whitney Houston’s Atlanta home.

Whitney apparently took Nick in to her home when he was 10 years old because his own mother could no longer care for him. Sources say that Whitney had treated Nick like a son until her death, but now, Cissy wants him out because she thinks he is a bad influence on Whitney’s daughter Bobbi Kristina.

Rumor has it that Nick was even included in Whitney’s will

WHITNEY HOUSTON SECRET 'SON' UNWELCOME AT SINGER'S HOME

Whitney Houston's mom is on a mission to eradicate the bad influences from Bobbi Kristina's life ... and she's starting with a 22-year-old man who Whitney treated like her very own son.

Houston family sources tell TMZ ... Whitney invited Nick Gordon to live with her and Bobbi Kristina more than 10 years ago ... when Whitney learned Nick's mother could no longer care for him.

Whitney considered Nick her unofficially adopted son ... and treated him like family up until the end.

But now, sources tell us ... Cissy Houston believes Nick is a bad influence on her granddaughter and wants him OUT of the Houston family home in Atlanta ... ASAP.

We're told Cissy has already informed her lawyers about the eviction ... in case he puts up a fight.

There are reports that Nick was included in Whitney's will ... but so far, we're told the reports have not been confirmed by members of the Houston family.

CISSY HOUSTON SEEKING 'CLOSURE' BY REVISITING WHITNEY'S HOTEL ROOM

Whitney Houston's mother Cissy has unfinished business to attend to -- sources tell TMZ she's planning a pilgrimage BACK to the Beverly Hills hotel room where her daughter died ... all in an attempt to get some closure.

According to sources close to Cissy, she wants to go back to room 434 at the Beverly Hilton hotel and reestablish a spiritual connection with her daughter ... in order to come to terms with her sudden death.

We're told Cissy plans to pray while she's there -- and just spend quiet, contemplative time in the space.

As one source put it -- Cissy "won’t be at peace until she gets closure."

It's unclear when Cissy plans to return to the hotel room -- but we're told the visit will be soon ... she's currently planning out the logistics.

WHITNEY HOUSTON'S BODY FLOWN TO NEW JERSEY

Whitney Houston's body was released from the LA County Coroner and flown overnight from LA to her native New Jersey on Tyler Perry's private jet. A huge memorial is being planned for later this week. Her mother Cissy, right, pictured arriving at the funeral home in Newark after her daughter's body was flown home. Can't even imagine what this mum is going through.

Whitney Houston's Mother

FAMILY DIVIDED OVER WHITNEY HOUSTONS'S BURIAL

There's a rift in Whitney Houston's family over where she should be laid to rest ... TMZ has learned.

Family sources tell us ... Dionne Warwick, Whitney's cousin, and Cissy Houston, Whitney's mom, both want the burial to take place in Atlanta. They believe Atlanta is the place Whitney enjoyed the most and had the fondest memories.

But the rest of the family wants Whitney buried in Newark -- where she was born, and subsequently discovered at a local Baptist church (below).

We're told Cissy's position is succinct:  "Michael Jackson did not want to be buried in New Jersey, and Whitney did not want to  be buried in New Jersey."

We're told Cissy and Dionne caved, after other family members convinced them New Jersey is where the world will remember her most.

It's unclear why they think the world will remember Whitney more in Newark than ATL.

No offense New Jersey.