cathugger:

A somewhat abridged history of wlw in American soap operas:

Bianca and Maggie, All My Children, 2002-2005, 2007

Bianca and Reese, All My Children, 2008-2009

Olivia and Natalia, Guiding Light, 2008-2009 

Bianca and Marissa, All My Children, 2011

Parker and Kristina, General Hospital, 2016-2017

Tessa and Mariah, Young and the Restless, 2017