Sideshow: Brotherly love for Bobbi Kristina?

TMZ cites an unnamed insider who says Whitney Houston's mom, Cissy Houston, is horrified by reports that Whitney's 18-year-old daughter, Bobbi Kristina, is having what Cissy calls an "incestuous" romance with quasi-bro Nick Gordon, 22. (Whitney unofficially adopted him when he was 12.)

Are they really dating? A TMZ vid clip that shows the pair sharing an intimate embrace had gone viral by Thursday morning. Then there's this tweet Bobbi Kristina sent in November: "I love sleeping with big brudder (: only person that helps my insomnia B!! Hah (:"

Hah! Huh? Gordon says the tweet and hug have been taken out of context. (Contextualize, please.) "We're just close," he tells ABC News, "just going through her mom's passing and grieving together." And as for that ring TMZ says it spotted on Bobbi Kristina's finger . . .?

Watermelon-smashing and vegetable-tossing stand-up comedian Gallagher (born Leo Anthony Gallagher), 65, was taken to a Texas hospital Wednesday when he collapsed minutes before taking the stage at a comedy club. His rep says he had a heart attack and is undergoing tests.

Citing safety concerns, HBO pulled the plug on Luck after a third horse died during shooting on the racetrack drama, which stars Dustin Hoffman, Dennis Farina, and Kerry Condon. HBO did not cite ratings, but the last episode Sunday night at 9 notched fewer than a half-mil viewers, says Variety. . . . New Orleans police have issued a misdemeanor arrest warrant for Brit jester-cum-sex-symbol Russell Brand for allegedly snatching and tossing (and thus smashing) a paparazzo's iPhone on Monday. No comment from Brand's reps.

Camping World chief executive Marcus Lemonis tells TMZ he is killing his retail outlet's sponsorship deal with Donald Trump's Celebrity Apprentice because he is "totally disgusted [and] . . . really shocked" by the Donald's scions' overly keen yen for big-game hunting.

Animal activists complained this week after the publication of gruesome pics from Donald Jr. and Eric Trump's 2011 safari in Zimbabwe. In one shot, Donald Jr. holds a freshly severed elephant tail in one hand and a knife in the other. The dead beast lies at his feet.

Darren Criss, 25, is going places: He's a standout on scripted TV as the openly gay student Blaine in the Fox musical Glee, he rocked Broadway in How to Succeed in Business Without Really Trying, and he's going Hollywood in Imogene, opposite Kristen Wiig and Annette Bening. He's so big, he can say 'no' to formidable TV demiurge X Factor boss Simon "Darth Vader" Cowell. E! News' Marc Malkin says Cowell, who fired most of the show's cast after season one, wooed Criss aggressively to host, but Criss said no. No comment from Fox or Criss.

Maroon 5 front man and perfumer Adam Levine finally has addressed charges he's a hypocrite for marketing his own line of fragrances a year after mocking celebs who did the same. Levine called for "an official ban on celebrity fragrances," tweeting that it ought be "punishable by death" and singling out his Voice costar, Christina Aguilera, as a prime offender.

"I know there's a stigma" attached to celeb brands, Levine tells People. "I, too, hate the idea of a celebrity fragrance, absolutely, 100 percent." The hipster-dude-turned-TV-talent-judge says he turned his hate into a creative force. "I kind of thought to myself, 'Well I'm interested in fashion and there's a lot of things about it that could be really cool if done properly,' " he tells People. "So I want to do a thing that's never done properly. That's my goal."

Erstwhile reality-TV star and clock-wearing rapper Flavor Flav this week opened a fried-chicken and soul-food restaurant in Las Vegas: Flavor Flav's House of Flavor. The ex-Public Enemy rapper previously owned a short-lived Flav's Fried Chicken in Clinton, Iowa. New place isn't associated with the old one.

According to the N.Y. Post's Page Six, Adam Dell (brother of computer guy Michael) won his fight with Top Chef host Padma Lakshmi over their daughter, Krishna. Under a settlement, Dell will be recognized as Krishna's father and the 2-year-old will carry his last name.

Yoda, a Chinese crested and Chihuahua mix that won the 2011 World's Ugliest Dog contest, has died at age 15. Terry Schumacher of Hanford, Calif., says the 1.8-pound Yoda died peacefully in her sleep Saturday.

Tickets go on sale 10 a.m. Friday at Ticketmaster for the fifth annual Roots Picnic, June 2-3 (two days!) at the Festival Pier, where the Roots will be joined by Kid Cudi, De La Soul, LCD Soundsystem's James Murphy (a DJ set), Wale, Diplo, St. Vincent, Tune-Yards, and Shabazz Palaces, among other hip-hop and indie-pop luminaries.