"I do think..." Katie said. "And you don't have to....dolls don't have to know a lot of stuff... Why don't you try counting some more...can you remember what number comes after ten?"
"Eleven...then...Twelve....then...." she trailed off..."Thirteen....what is happening now...?"
"You don't need all that pesky stuff in your head, Shelly...not anymore...but I do now..." Katie said.
"You're taking it..."
"No...you still don't understand..." She gently rapped a finger on the side of Shelly's head. "Because your head is going hollow...and mine is filling up...I understand so much more now..."
"Please, Katie..." Shelly begged. She was scared. "I have a daughter..."
"Do you remember where babies come from?" Katie asked.
"I....umm..." Shelly stumbled. "Stork?"
"No...S-E-X...."
"What....I should know what that spells....right?" the former human asked, feeling more disoriented.