When Patty had wished to know what to wish as a perfect punishment for Joan, she hadn't gotten a simple, single wish idea, but rather she got a number of wishes that perfectly matched what she wanted at each moment. At the moment that she decided to finally punish Joan, Joan was displaying her breasts, reminding Patty of where she'd been not too long ago. With this, she suddenly wanted to reassert that she was straight, that she didn't like girls and wanted nothing to do with going in another girl's pussy.
"I wish Danny were here and asleep on the bed."
Joan blinked, what did Danny have to do with anything?
"I wish Joan would become Danny's human-shaped penis, still able to see, hear, and move except that she wouldn't have arms, legs, and would be stiff when Danny was aroused." Patty wanted Joan to know what it felt like to be used in a girl's cunt, she wanted to have sex with Danny, and this wish was the perfect mesh of both of those desires and matched what she wanted perfectly.
Joan's eyes widened, but suddenly she wasn't in her clothes anymore. Suddenly she was trapped in some tight space. She could hardly move, couldn't feel her arms or legs, and her surroundings had long coarse hairs that were bothering her breasts, and it smelled like... well, it didn't smell good. "Oh God..."
Patty smiled, hearing the little exclamation from Danny's crotch reaffirmed that her wish had been granted, "Now, I wish..."