“Sister Wives,” the reality show chronicling the lives of Kody Brown and his four wives living in plural marriage in Nevada, returns to TLC on Sunday, July 21 — and with it comes a new family business. Read our recap of the Season 4 premiere here.

The Browns have opened up a retail business called My Sisterwife’s Closet — check out the website here — and are apparently debuting a bunch of their jewelry pieces at an expo in Las Vegas, where they need to move a serious amount of units in order to justify continuing with the business.

Another problem is that not everybody sees this business as anything more than a hobby, while fourth wife Robyn sees it as her job.

RELATED: ‘Sister Wives’ family pictures

“I feel we need to put more man hours as a group into the situation. … I think some of us are half-interested, half-invested. Cody told me the other day he sees it as a hobby business and I’m not looking at it that way at all,” says Robyn, in the above preview clip.

As usual, third wife Christine continues to be kind of the worst, when she says, ”
I never intended to give more than this. It’s not that I don’t support My Sister Wives’ Closet. To me, I’m giving my support if I come to the meetings. If I don’t groan during the meetings and roll my eyes and walk out early. That’s good support.”

Nope, that’s not good support.

RELATED: Christine admits her jealousy of Robyn

Meanwhile, Kody is definitely feeling the strain of working with his wives.

“It is a challenge working with my wives. Some days I don’t want to work with them. I want to run away screaming, kicking and screaming, throwing my clothes off, just get me out of here.”

“Sister Wives” airs Sunday nights at 9 p.m. ET/PT on TLC. There is a marathon of past episodes airing all day July 21 leading up to the Season 4 premiere.

Posted by:Andrea Reiher

TV critic by way of law school, Andrea Reiher enjoys everything from highbrow drama to clever comedy to the best reality TV has to offer. Her TV heroes include CJ Cregg, Spencer Hastings, Diane Lockhart, Juliet O'Hara and Buffy Summers. TV words to live by: "I'm a slayer, ask me how."