Toothsome and Then Some

That's one nice smile Chris Samuels has, and aims to keep. (NFL via Getty Images)

We're a little jaded when it comes to celebrity endorsements: The whole Boldface Name Loves [pimped luxury cars/diamond watches/custom duds] is so predictable. But when a 6-foot-5, 310-pound NFL player flacks dental floss . . .

Admittedly, Redskins tackle Chris Samuels has a great smile. "Not to brag, but I get a lot of compliments on my teeth," he told us yesterday. Good thing, because he's Crest's new spokesman and just might demonstrate his flossing technique at this weekend's National Capital Barbecue Battle on Pennsylvania Avenue.

"A lot of people don't understand the importance of flossing," said the 28-year-old, who has naturally straight teeth and had only three cavities in his life. He used to just brush and use mouthwash until a dentist explained he really had to get between those choppers. His personal flossing journey includes the one that cut his gums until -- bliss! -- he found his perfect floss.

You're thinking: Okay, but what's Samuels doing at a barbecue? He's signing autographs (noon to 3 p.m. tomorrow) and might be coaxed into showing off his Flossing 101 for those walking around with a stubborn piece of chicken or pork wedged between their molars: "I start at my front top teeth, then I'll work my way to the back. Same order on my bottom teeth."

How do the other Redskins stack up, flossing-wise? Samuels wasn't sure, but plans to investigate when training camp starts July 31. "After we win the Super Bowl, we need a pretty smile."

Vivica A. Fox in a Different Red-Carpet Debut

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Vivica A. Fox at the Washington screening of "Shadowboxer."(Bill Auth - Reuters)

You mortals have your ordinary relationship "firsts" -- first kiss, first fight, etc. -- but celebrities have a very special dating milestone. When Vivica A. Fox showed up at the Georgetown screening of "Shadowboxer" with her new boo Bryant Brown, it was the first time, she told The Post's Jillian Jarrett, they had walked a red carpet together.

The "Kill Bill" star, decked out in curve-hugging Cavalli, was otherwise coy with details about her Houston honey. She flew in from L.A. to hang with longtime pal Mo'Nique, who plays a crack addict in the new indie-noir flick. Best known for her comic work, the voluptuous Baltimore native was excited to take a dramatic turn, and she applauded first-time director Lee Daniels for casting her opposite skinny white dude Joseph Gordon-Levitt.

"He wasn't afraid to tell the truth," Mo told our colleague Akeya Dickson. "Hollywood is okay with the image of a black woman being in love with a white man, but they back up from the possibility that a white man could be in love with a big black woman."

Jenna's Touch of Class

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So, you know, just another D.C. school fundraiser. Go to them all the time. But this one, hosted by consulting firm DFI International for the Elsie Whitlow Stokes Community Freedom Public Charter School, featured an auction of student art that got quite aggressive. Fourth-grader Lucia Rios's sketch of the Supreme Court commanded $120, while Rebeca Gutierrez's Washington Monument fetched $410!

As the auction ended, some of the kids ran up to a fave teacher: "Ms. Bush! Ms. Bush!" Or, as we know her, Jenna. Our city's remaining First Twin (Barbara decamped to NYC this month) stood with a drink of some kind, casually elegant in a taupe-ish cotton-looking summer top and long-hemmed black pants. Her blond bob has grown out to a flattering near-shoulder length. She laughed a lot with the kids and tousled their hair.

So much to tell her! Alas, as we chatted with the school's founder, Linda Moore, Ms. Bush slipped quietly out the door. Must not have known we were there . . .

Yesterday on CNN

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John King: "Your daughter recently wrote a book in which she discussed her role in your campaign but also her decision, some time ago in her life, to come to you and Mrs. Cheney and disclose that she was a lesbian. And she has issues with the Republican Party on the issue of same-sex marriage, and she wrote this: 'If the Republican Party fails to come around on this issue' -- same-sex marriage -- 'I believe it will find itself on the wrong side of history, and on a sharp decline into irrelevance.' Do you agree with your daughter Mary on that?"

Vice President Cheney: "I've got great love and affection for my daughter, obviously. I think it's a very good book, and I'd recommend people read it."

Read it, yeah. But -- jeesh -- don't ask him questions about it!