John McCook and Katherine Kelly Lang
"The Bold and the Beautiful" actress Katherine Kelly Lang takes a selfie with John McCook while on set. Instagram/katherinekellylang

Two marriages are in the horizon on the upcoming episodes of “The Bold and Beautiful” (“B&B”), but things may not be as smooth-sailing as planned. On Monday, Eric (John McCook) makes yet another bold decision pertaining to his relationship with Quinn (Rena Sofer). Spoilers suggest that after proposing to her, Eric now wants to marry Quinn as soon as possible, even though his family is still against their affair.

Speaking of speeding things up, Bill (Don Diamont) has taken care of everything to push through his wedding with Brooke (Katherine Kelly Lang). However, her son continues to be a big obstacle, threatening to derail Bill’s plans. Other “The Bold and the Beautiful” cast members who will appear on the Sept. 19 installment include Steffy (Jacqueline MacInnes Wood), Thomas (Pierson Fode), Wyatt (Darin Brooks), Liam (Scott Clifton), RJ (Anthony Turpel) and Ridge (Thorsten Kaye).

Spoiler Alert! This article contains "The Bold and the Beautiful" spoilers. Read only if you want to know more about it.

TV Guide reports that on Monday’s episode of “B&B,” Eric again takes his relationship with Quinn to a whole new level, despite his family’s aversion to it. Meanwhile, Steffy and Thomas worry that RJ gets in the way of their best-laid plans regarding Brooke’s marriage with Bill.

The show’s official YouTube channel posted a preview video for the Sept. 19 episode. It features multiple scenes with Quinn, Bill, Brooke and RJ. On the first scene, RJ tells his mother, “You will ruin our family. Don’t do it, mum.” However, Bill informs Brooke that the jet is already loaded and ready for them. “Let’s go and get our life,” he says.

Elsewhere, Quinn wonders to Eric, “Why can’t everyone just let us be or get to know who we are together before they make all these crazy assumptions?”

"The Bold and the Beautiful" recap

In the previous episode, RJ appealed to Brooke not to marry Bill, insisting that family should come first. Ridge tried to reason with RJ, but the young one said if his dad won’t do something to stop Brooke’s wedding, he will. RJ then headed towards Bill’s office and confronted his mum’s fiancé. Bill thought he was an intern, further riling up RJ. Brooke and Ridge’s son then told Bill that he won’t ever marry his mum. He insisted that his parents belong together, but Bill disagreed. Brooke arrived, and RJ begged her not to marry Bill. Elsewhere, Ivy informed Quinn that she kissed Liam, but it became more apparent that he’s still in love with Steffy. Quinn urged Ivy to continue working on Liam, telling her that she’s so much better for him than Steffy. Quinn also promised Ivy that she’ll be the next Forrester matriarch.

Click here to watch some episode previews from the official YouTube channel of “B&B.” Find out what happens next on “The Bold and the Beautiful,” which airs in the US from Monday to Friday on CBS. It also airs on Channel Ten in Australia.