Whitney Houston’s Daughter Bobbi Kristina and Ex Ray J Cause Drama in Las Vegas

Whitney Houston's daughter Bobbi Kristina Brown and the late singer's ex-boyfriend Ray J put the "sin" in Sin City separately this past weekend while in town for the Billboard Music Awards. After accepting the Millennium Award on her mother's behalf onstage Sunday night, 19-year-old Brown hit the MGM Grand's slot machines — a big no-no since she's underage. After video footage of Brown and her adopted brother-turned-boyfriend Nick Gordon, 22, showed up on TMZ on Monday, both the hotel and the Nevada Gaming Commission have launched investigations. If it's proven that the teen broke the law, she faces up to six months in county jail or a $1,000 fine.

That same day, Houston's former beau, Ray J, ended up in a Las Vegas-area hospital after he was found "out of it" and unable to get up from the bed in his hotel room following a night of partying after the awards show. According to TMZ, Ray J was extremely disoriented, so an ambulance was called. His rep told E! Online that the 31-year-old R&B singer, one of the last people to see Houston alive before her cocaine-induced death, was suffering from "exhaustion and jet lag" after a whirlwind 32-hour trip from Los Angeles to China and back just prior to the Billboard Awards. As of Tuesday, Ray J was still in the hospital.

At the awards ceremony on Sunday night, Houston's sister-in-law Patricia alerted her personal security after she realized that Ray J, who made a sex tape with Kim Kardashian before he moved on to Houston, was seated next to Bobbi Kristina. According to reports, just before she and her niece took to the stage to accept her award, Patricia demanded that Ray J be kicked out of his spot — but he wouldn't budge. Security staffers at the event were then called over, but eventually smoothed things out after suggesting there not be a scene considering it's live television. Even though he was able to stay, Ray J reportedly told a friend, "Pat ruined what was a great opportunity to honor the woman who I loved."

During her Billboard Awards speech, Bobbi Kristina thanked her mother's many fans who showed her family support following her February 11 death at the Beverly Hills Hotel. "Thank you so much for showing that much love, because she deserved it," said the emotional teen. "She did. I'm just blessed to have been in such an incredible woman's life. There will never be another one, never, and I thank you, all of you, fans, everyone, thank you so much."

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