Prompt: You were a Monster Under the Bed and you were good at it, but some staffing issues have forced you to become an Imaginary Friend.
"I'm sorry Natsu," the little old man said. "But we're going to have to reassign you."
"What?" He spoke as if he didn't comprehend the words the man had said. "Reassign me to what Gramps?"
"You're a great Monster," Gramps said slowly. "But we're severely lacking in Imaginary Friends and-"
"No! I am the best Monster here! Make Ice Princess be a stupid Imaginary Friend."
"We are, but we are severely short and unless you want me to tell Erza you refused-"
"What?" Natsu shunk back. "What's she got to do with it?"
"Well if you don't take the reassignment, I'll have to explain to Erza why she has to do it instead," Gramps said gravely.
"Shucks Gramps, I'll have to! She'll skin me alive!"
"Excellent."
Author's note: I am so lazy.