'Selling Sunset's' Chrishell Stause, Heather Rae Young & Co-Stars Pose In Bikinis To Celebrate Good News

Selling Sunset stars Chrishell Stause, Heather Rae Young, Mary Fitzgerald, and Amanza Smith were celebrating good news in a new photo on Instagram. The luxury realtors featured on the Netflix reality show posed in bikinis while spending the afternoon on a boat, with Chrishell teasing a mystery celebration.

In a new photo shared to Chrishell's social media page, the four beauties were all-smiles as they waved at the camera. Chrishell rocked a red bikini top with polka dot bottoms, while Heather wore a bright magenta two-piece, and Mary and Amanza wore blue swimsuits. The sparkling blue ocean provided a gorgeous background for the four friends on a sunny California afternoon.

In the caption to the pic, Chrishell posted the Latin phrase for "seize the day" and teased that the foursome was celebrating something that they can't tell fans about.

It's no surprise that in comments to the post, which can be seen below, many fans speculated that the mystery might have something to do with a Season 4 renewal for the Netflix reality show. Others hoped that certain cast members won't be back when the show does return with new episodes.

"Is the good news that Christine [Quinn] was fired?! Cause I'd be celebrating that!!" one fan wrote of the Selling Sunset villain.

"Obviously there's going to be a season 4 & best news is that Davina [Potratz] isn't returning #puttingitoutintotheuniverse," another person wrote.

"God I hope it's Christine and Davina are gone," a third user added.

But others speculated another reason for the happy day.

"Mary might be pregnant?!?!" one commenter asked.

The Oppenheim Group realtor married Romain Bonnet last fall in a wedding that aired on Season 2 of Selling Sunset.

In addition to Chrishell, several of her co-stars shared pics and videos from the celebratory gathering.

In a separate Instagram story, Chrishell, Amanza, and Mary were filmed in a tricked-out party bus as they headed to pick up Heather. The blond beauty, who also posted clips with her Selling Sunset co-stars on the boat with a mystery man driving it, recently got engaged to Flip or Flop star Tarek El Moussa, so it's possible the celebration has something to do with the celebrity couple's engagement.

In other Instagram stories, the foursome teased that they were having a "Girls' Day."

Whatever is going on, it is clear that there are two "teams" of women at the Oppenheim Group these days.

While four of the Selling Sunset stars were getting some real-life sun, Christine shared a pic with celebrity tan expert Jimmy Coco as she thanked him for her new "glow."