'Sister Wife' #4 -- Smells Like Polygamy

"Sister Wives" star Kody Brown spent some quality time with his newest bride, Robyn Sullivan, by going perfume shopping at a mall in Utah in yesterday.

Scent of a sister wife.

'Sister Wives' Hubby Marries Wife #4

Kody Brown officially has 21 mouths to feed ... TMZ has learned the "Sister Wives" polygamist has married his latest fiancée Robyn Sullivan ... increasing his total number of wives to FOUR.

Sources close to the "Sister Wives" stars tell us the two were married "a few months ago" at a private religious ceremony in Utah.

Robyn isn't entering the family by herself -- she has three kids from a previous marriage who will join Kody's 13 kids and three other wives.

We're told TLC cameras were not allowed to capture the actual ceremony -- but the reception WILL be featured on the reality show. We're told some of the drama leading up to the wedding will be featured on this Sunday's episode.

With 21 total members, Kody can literally split the family in half and hold a regulation football game ... as long as he plays all-time quarterback.

Oprah Winfrey -- It's Time for More Polygamy!

Oprah's travel budget just took a pretty big hit -- TMZ has learned several members of the 21-member polygamist family from "Sister Wives" just rolled over to Chicago to tape a spot for O's TV show.

Sources connected to the production tell us Kody Brown, his multiple wives and "some" of his 16 children blew into the Windy City a few days ago to be interviewed by the Queen of Daytime for an episode set to air next week.

Oprah's no stranger to the topic -- just last year, she interviewed another polygamous family during an entire hour dedicated to exploring the world of plural marriages.

YOU get a wife! YOU get a wife! EVERYBODY gets a WIFE!

'Sister Wives' Bigamy Case -- The Stats Don't Lie

Kody Brown better not have any skeletons in his many closets ... because a TMZ review of Utah bigamy cases reveals no one -- at least no one we could find -- has ever been prosecuted for bigamy in recent times ... unless the perp was suspected of a collateral crime such as child endangerment.

Law enforcement sources tell us there are so many polygamous families in Utah, that officials simply don't have the resources to go after all of them ... unless they're made aware of a more serious crime ... such as a the taking of a child bride, false imprisonment or anything violent.

As we previously reported, the Brown family -- featured on the TLC show "Sister Wives" -- is currently at the center of a bigamy investigation ... and could face up to 5 years in prison if convicted.

The case is currently in the hands of the Utah County Attorney's office -- and the guy in charge, Jeff Buhman, tells us, "In my experience ... there has never been a traditional polygamist family charged with the sole crime of bigamy."

'Sister Wives' -- Backlash in Polygamy Community

Kody Brown, his three wives, fiancée and 13 kids have created a house divided in his fundamentalist Mormon church.

We're told before Brown decided to do "Sister Wives," he went to his Utah church for its blessing, but the main man -- called the "community leader" -- would not give Kody the thumbs up, because the law squarely outlaws bigamy and the church didn't want the heat. The community leader told Kody to make the decision himself ... and Kody chose to be a TV star.

As for members of the church, we're told they're all down with polygamy but split on one of its families flaunting their lifestyle on TV. Some church members feel it's too risky -- the old waving-the-red-flag-in front-of-the-bull thing.

But despite the split, Kody and crew are still welcome at their house of worship.

The Gals of 'Sister Wives' Who'd You Rather?

The gorgeous brides of TLC's polygamous family reality TV series "Sister Wives" (Meri, Janelle, Christine and fiancée Robyn) all gathered as one big happy extended family at an event in Beverly Hills recently.

The question is...

Polygamy Family Gets Really Good Lawyer

Kody Brown and wives have a powerful new legal force behind them -- TMZ has learned ... constitutional law guru Jonathan Turley is now representing the "Sister Wives" family in the polygamy investigation, and he's willing to fight it all the way.

Turley -- a professor at The George Washington University Law School -- tells TMZ he is ready, willing and able to sit down with the Utah County Attorney and make a case why his clients should not be prosecuted.

Turley says absent some proof that the family is engaged in child abuse or other crimes, Utah prosecutors almost never prosecute for polygamy. Turley is quick to note there is absolutely no evidence of child abuse or other crimes in the Brown family.

Turley points out ... although Utah prosecutors have a lot of discretion in deciding when to prosecute someone, people can't be hauled into the criminal justice system simply because they've gone on TV and become high profile. In legalese, it's called "selective prosecution" ... and it's illegal.

Turley says his goal is to convince prosecutors to leave the Brown family alone. But he says if his clients are prosecuted, he'll fight it hard. Turley would not say outright that he'll make this a test case and push it all the way to the U.S. Supreme Court, but he made it clear ... he will do everything it takes to clear his clients if they're prosecuted.

Judgment Day in 'Sister Wives' Polygamy Case

The fate of the polygamist family featured in the TLC show "Sister Wives" is now in the hands of county prosecutors ... TMZ has learned.

The Utah County Attorney has confirmed ... the Lehi Police Department has completed their felony bigamy investigation into Kody Brown and his gigantic family -- and the case has been turned over to the Utah County Attorney ... who will ultimately decide whether or not to charge the family with a crime.

In Utah, bigamy can get you 5 years in prison ... though it's rarely prosecuted.

Kody Brown -- who has 3 wives, a fiancée and 13 children -- claims he was aware of the risk he was taking when he decided to put his family on the TLC reality show ... but insists it was a "risk worth taking."

'Sister Wives' Polygamist Husband -- 4 Dates in 2 Days

Kody Brown -- the head of the polygamist family on "Sister Wives" -- had a busy 48 hours ... going out on a date with each one of his 3 wives ... and the new fiancee ... while finding enough time to clean up after his 13 kids.

It started on Saturday, when Kody took wife #3, Christine, on an ice cream date.

The next day, Kody grabbed his motorcycle and went for a ride with wife #1, Meri ... before squeezing in some quality time with wife #2 Janelle (the one in the purple).

The new woman in Kody's life -- Robyn -- also got some face time with her man this weekend .... during a his-and-hers grocery store run in which the couple picked up an 8 pack of paper towels ... which will probably last about 10 minutes.

FYI -- authorities in Lehi, Utah have announced they launched a polygamy investigation into the family after seeing "Sister Wives" .... but the Browns claim the show is "worth the risk.".

Polygamous Family: TV Show is Worth the Risk

The polygamous family featured on the TLC reality show "Sister Wives" is speaking out after learning they've become the target of a felony bigamy investigation in Utah ... claiming the show is a "risk worth taking."

TMZ just received a statement from the Brown family -- saying, "We are disappointed in the announcement of an investigation, but when we decided to do this show, we knew there would be risks."

The family continues, "But for the sake of our family, and most importantly, our kids, we felt it was a risk worth taking."

Yesterday, the Lehi Police Department in Utah announced that the family is being investigated for felony bigamy ... and plans to turn over all evidence to the Utah County Attorney's Office for review and possible prosecution.

The show features a 42-year-old man named Kody Brown -- who has 3 wives, a prospective 4th wife and 13 children.

TMZ Live: Gibson, Lohan, and Paul Wall

We took your questions on everything -- including Mel Gibson's possible domestic violence defense, rapper Paul Wall beating a fan with a microphone, and TLC's "Sister Wives" being investigated for felony bigamy.

Plus: Lindsay Lohan checks in to rehab.

Old news is old news!
Be First!

Get TMZ breaking news sent right to your browser!