The boy patted his head, then scratched his ears while the girl looked up at Raven and Boston covered the boy's face with licks.

"I'm Sarah, and this is Jimmy. We're twins."

"I'm Raven, and this is Dan. We're twins, too."

"Wow. Are you blind?" Sarah asked.

"I am, Sarah."

"Dan's not though. He was driving," Sarah announced.

"How did Jimmy know Boston is my service dog?"

"I knew too. I just didn't get to ask before he butted in."

"Okay," Raven laughed, "How did you two know about service dogs?"

Sarah was taking her turn petting and getting dog kisses from Boston, so Jimmy answered for his sister.

"Miss...