Karina Smirnoff's toned tummy is proof that dancing does a body good.

The Dancing With the Stars pro, who is paired this season with singer Gavin DeGraw, left a grueling day of practice with a smile. If our abs looked that good, we'd be smiling, too!

Looks like Karina soothed those sore muscles with Bengay Zero Degrees. Whatever it takes to get that mirror ball trophy!

Two days after J.R. Martinez took home the mirror ball trophy, the Dancing With the Stars champ and professional partner Karina Smirnoff are still celebrating!

The duo, proudly displaying their glitzy trophy, headed to New York for a special appearance on Good Morning America.

Martinez, an Iraq war veteran, discussed the suspenseful DWTS finale. He told the GMA audience:

"I said to Karina … 'Can they just tell us already?' It seemed like the moment was just lasting forever when they were building up the suspense. It's amazing. We've all been putting over three months of work into this. To be able to hold that [mirror ball trophy] up was a tremendous honor."

This is Karina's first win after being a part of DWTS for ten seasons. She definitely deserves it!

Rob Kardashian took second place and talk show host Ricki Lake finished in third.

Karina Smirnoff and her pro baseball player beau Brad Penny have decided to postpone their wedding, according to Us Weekly.

A source close to the couple tells the mag, "They are still together, but have conflicting schedules."

Back in June Smirnoff gushed that the duo would be walking down the aisle this January in Cozumel, Mexico, and they are said to be looking into possible new dates, according to E! Online.

Smirnoff and Penny announced their engagement last November, just months after she split from fellow Dancing with the Stars pro Maksim Chmerkovskiy.

Petra Nemcova is the latest celebrity to be eliminated from ABC's Dancing With the Stars, and with the pressure growing, the rest of the cast are continuing to remain focused on their rehearsals.

In between hitting the dance floor, Playboy's recent cover girl Karina Smirnoff jumps into her comfy sweat suit for some down time. As hard as she works, we don't blame her!

Check out Lil' Romeo's ripped body! His pro partner Chelsea Hightower is one lucky girl. See Maks giving partner Kirstie Alley some lovin' ... after the jump.

So this is what dancing the rumba for years gets you ... an insane body!

Dancing With the Stars hottie Karina Smirnoff is showing off her naked dancing physique in the May issue of Playboy.

The 33-year-old Ukranian stunner is nude in an incredible 8-page pictorial. Sexy Karina tells the mag:

“As a dancer I’ve always embraced my body. I’m thrilled to show off my strong, toned physique in the pages of Playboy and celebrate my sexiness. To me, sexy is the confident energy a person produces. Sexy is the comfortable feeling of being who you are. Sexy is not just having beautiful lips, legs and arms; it’s beyond that. Sexy is soul.”

Find out when the magazine hits newsstands AND see a sexy inside image of Karina ... after the jump.

Kendra Wilkinson appeared to have worked hard at Dancing With the Stars practice yesterday. She and partner Louis Van Amstel are muddling through and the reality show star has said she "doesn't feel sexy" when she's dancing.

I guess that wasn't the case when she starred in a lesbian sex tape with pal Taryn Ryan! Reports say an hour-long version of the girls' sexy romp is about to hit the porn market.

Meanwhile, Kendra's DWTS competitor Karina Smirnoff is getting into the act as well ...

It was announced this week that Karina has posed for an upcoming issue of Playboy. Perhaps she's hoping to following in Kendras "steps"?

Karina Smirnoff will be showing off her gorgeous dancer's body in the May issue of Playboy.

Founder of Playboy, Hugh Hefner, confirmed the news when he tweeted:

"The May issue of Playboy is unforgettable with Dancing With The Stars' Karina Smirnoff on the cover & nude inside."

Smirnoff, 33, is currently partnered with Ralph Macchio on DWTS. Aside from dancing, Karina is planning a trip down the aisle with pro baseball player Brad Penny. The Ukranian beauty has revealed her wedding will take place early next year.

Let's get ready to rumba!

Find out how much Karina's engagement ring is worth ... after the jump.

Fresh off her success on Dancing With The Stars with partner The Situation, dancing pro Karina Smirnoff is getting ready to help the world shed any extra holiday pounds with the release of Shape Up, a dance-inspired workout DVD hitting stores just before Christmas.

Karina tells X17online exclusively:

"It's a whole body workout that will concentrate on getting rid of those love handles. The dance moves will also target that little pouch underneath the belly button that never seems to go away."

Smirnoff, who's engaged to St. Louis Cardinals baseball player Brad Penny, says that she's inspired every day by her man, whom she says, "lost 40 pounds already so he can be in the best possible shape for the upcoming baseball season."

With so many marriages failing in Hollywood, the newly engaged dancer tells us:

"All you can do is hope for the best and focus on how you’re in love right now. Both my parents and Brad's parents have been married for over thirty years so we have great examples to go by. The sad thing is, if you've made it as a married couple in Hollywood for five years, then people joke that you've made it. So many get married for all the wrong reasons."

Aside from auditioning for potential movie roles, Karina says that her boot line with Bearpaw will be coming out before the new year.

We love how Smirnoff's (also the name of Vodka) married name will be Mrs. Penny once she and her ballplayer head to the alter. She jokes, "Brad and I always laugh that our names combined will represent 'one cent liquor.'"

There's a penny for your thoughts.