Patrons tier 2 and 3 can find the monthly swap folder link on their membership page. (The link will be inactive for a few days between months!)
Jaina+Katherine: Jaina was so busy rewarding yet another group of heroes that the meeting she was supposed to attend with her mother completely slipped her mind. She didn't even notice when Katherine entered her chamber furious, ready to scold her daughter for neglecting her duties to the kingdom. But when she saw her daughter on her knees, face buried in the dick of the worgen hero she was currently rewarding, Katherine realized that wasn't the case, and Jaina was, in fact, very loyal to her duties and had been rewarding heroes all that time. There was nothing else to do at the moment but join her daughter to reward the hero together.
Tyrande + Maiev: After Gilneas fell, the worgens needed a new place to live. The night elves quickly offered the refugees their homes (and other things). Tyrande and Maiev even briefly put their hostilities on hold to show them the night-elven hospitality.
Ysera and Alexstrasza: After returning from Ardenweald, Ysera was eager to experience again some of the "comforts" she was missing in the afterlife. One in particular was a big, hot worgen cock. Alexstrasza, so happy to hear her sister had returned, immediately flew to Ohn'ahran Plains to see her again and upon arriving, quickly joined in on the celebration.