The Logan sisters are getting their sweet revenge on the lying, scheming Bill Spencer (Don Diamont) on the Monday, Nov. 18 episode of The Bold and the Beautiful.

Brooke (Katherine Kelly Lang) and Katie (Heather Tom) know Bill tricked them both in an effort to win back both his position as CEO at Spencer Publications as well as full joint custody of his son, Will. He thought everything had gone according to plan, until he told Brooke what happened.

She not only broke up with him, but also played a trick on him. While Katie confronted Bill in another room, Brooke took an envelope Bill had containing papers Katie signed and removed the paperwork. The respective envelope contains documents granting Bill joint custody of his son and also giving him back his position as CEO of Spencer Publications.

Brooke filled the envelope with the leaves she had collected in Aspen, unbeknowest to Bill. Bill now knows what happened, but it is unclear what Brooke did with the forms.

All should be revealed in Monday's episode and a preview clip shows Bill asking Brooke to take him back.

"I need you to forgive me," Bill said in the preview clip.

"What you did to Katie was unforgivable," Brooke replied.

Katie was crushed when she initially realized Bill had lied to her once again. After learning that her sister had stood up for her for once, she may finally be ready to forgive her as they keep up their united front against Bill.

"I wish I could see the look on his face when he realizes that he's the one who got played," Katie said in the clip. "Bill has nothing."

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