Both Blindfolded: A 2x2 Romance by Granger, SH

Layla Chambers, aka Yin of the famed superhero duo Yin and Yang, has been feeling rather put-out as of late. Despite the fact that she's finally with the man that she's been pining over for so long, she can't help but watch Yang whenever they're together. She asks him for a tiny little favor, and he agrees... With the promise that he knows something that she doesn't.