A booty shake that made Kendra Wilkinson blush was demonstrated Sunday at the Mall of America.

Accompanied by her husband, Hank Baskett, who played with the Vikings last season, the E! TV reality star autographed her second book at the Barnes & Noble event, just as the Lions were defeating the Vikes at Mall of America Field.

Normally at book signings, nary a derriere will be intentionally shaken the way Samantha Dirksen was doing it. But Dirksen, who said she was from Cedar Rapids, Iowa, told me she was a dancer, as you can see and hear for yourself at startribune.com/video. Her sister, Danielle Keough, said she was a dancer, too, but due to the chilly weather, Keough chose not to copy the scanty shorts worn by Dirksen. (Keough could not, however, resist punctuating Dirksen's booty shake with a slap to her sister's rear end.)

"You know I'm your twin, right?" Dirksen said when she finally had her moment with Wilkinson, who laughed out loud. "'I want to meet Kendra so bad,'" Dirksen said she has often told her friends, always wondering: "What am I going to say when I meet her?"

"So what are you going to say?" asked Wilkinson, a Playboy model and at one time one of TV's "Girls Next Door" in Hugh Hefner's realm.

"Your books are like my diary!" said Dirksen.

As Dirksen flipped her hair for a photo with Wilkinson, the video blogger Melinda Jacobs, who writes at theadventuresofmelindajacobs.com, yelled a "booty dance" request. Wilkinson had ignored that request earlier, but Dirksen was game.

"They want me to show you," said Dirksen, who turned her back to Wilkinson, bent over and started to put her rear in gear, despite Wilkinson's quiet caution -- "There are kids" around.

"OK," said Wilkinson, averting her head, clapping her hands down low and admitting, "I just got beet red right now."

Later a man who told me he was Kendra's driver seemed to swap contact information with Dirksen in a tête-à-tête. Something the driver told Dirksen caused her to make a phone call during which she became emotional with what she later describe as tears of happiness.

"Should I stay here, should I go, should I leave?" Dirksen asked the driver. "Go," he told her.

Sounded to me as if another meeting was to come, possibly with Kendra and her self-proclaimed "twin."

CJ: Emcee and diva at-largeEvent planner Paula Molnau had a situation on her hands -- and not enough clothes on for her own comfort.

Molnau is director of development for the Madison Claire Foundation, which was created in memory of Madison Claire Millington, who died in 2004 at the age of 2 from complications of Spinal Muscular Atrophy (SMA). The foundation, started by Madison's mom, Dana Millington, had a gala at the Van Dusen Mansion that raised $47,000 for Madison's Place, a Woodbury playground designed to be accessible to wheelchair and walker users of all ages. The playground will be at the Bielenberg Sports Center on land donated by the city of Woodbury.

The rest of what is written here is not be to confused with the serious mission of the foundation.

Molnau probably thought, based on the voice, that a man was trying to come into the suite where she was dressing. There was a brief tug of war with the door before she realized it was just me, emcee for the foundation's "Roaring 20s"-themed gala, trying to get into the makeup room.

Rather than put on clothing, Molnau let me in, although she was wearing next to nothing. (Of course, she had on much the same female undergarments that Andre Shoals wears throughout most of his Lab Theater performance as Frank-N-Furter in "Rocky Horror Show Live!")

The next part of the silliness began when Molnau asked me to install her false eyelashes. It went pretty well considering that I've only had full false eyelashes put on me for photo shoots by professionals and had never put them on my own eyelids or anybody else's.

The final act of silliness ensued when vocalist Christine Rosholt turned over her mike and band to me so I could sing "Bieber Fever." It's a song sung from the perspective of Justin Bieber's girlfriend, Selena Gomez, to the tune of Peggy Lee's "Fever," and embellished with Bieber-centric lyrics written by yours truly. After catching part of my "Bieber Fever" act on a recent voice-mail greeting, Molnau thought I should perform it at the gala in addition to being emcee.

Might have been better if I drank in public.

Rosholt, a good sport and a real singer, said I did fine considering "it could have been a disaster." I thought bass player Keith Boyles was just trying to figure out what key I sang in when the next thing I knew, we (as in pianist Chris Lomheim, drummer Mac Santiago and sax player David Karr) were in full song.

It was all rather scary, even though the lyrics were funnier than the singing.

C.J. is at 612.332.TIPS or cj@startribune.com. E-mailers, please state a subject -- "Hello" doesn't count. Attachments are not opened, so don't even try. More of her attitude can be seen on FOX 9 Thursday mornings.