She has had her suspicions that more had developed between her brother and Ivy (Ashleigh Brewer) than they previously let on, and now, after overhearing a private conversation between the two, Steffy (Jacqueline MacInnes Wood) will be torn over whether she should tell Wyatt (Darin Brooks) the truth on The Bold and the Beautiful.

Steffy Shares Her Concerns About Ivy With Liam

After hearing Ivy and Thomas (Pierson Fode) talk, Steffy will demand answers from Thomas about what really transpired between them. When she learns that they did, in fact, have a steamy makeout session the night Wyatt was out of town on business, she will freak out and threaten to tell Wyatt the truth,

"Ivy was fooling around with you when she's supposed to be exclusive with Wyatt," Steffy says in a preview clip for the Tuesday, Dec. 1 episode. "That's cheating."

Forresters, Spencers, Logans & Avants All Gather For Thanksgiving Dinner

However, not wanting to upset Ivy by actually ruining her relationship, Thomas will try to convince Steffy to forget everything she knows so he can have a fair shot at winning Ivy over without being a rebound from Wyatt.

"Just pretend like you never saw anything, like you never heard anything," he says in the clip. "Just let Wyatt and Ivy go on with their lives."

And though she will temporarily appease her brother by saying she won't say a word, Steffy will tell Liam (Scott Clifton) what she has learned--and will be shocked when he appears to echo Thomas' plea and encourage her not to get involved in the drama.

"Just stay out of it okay? Let them work this out on their own," he says.

The Bold and the Beautiful airs Monday-Friday at 1:30 p.m. on CBS.

Tags: The Bold and the Beautiful CBS Soap Operas