You've Missed Mouthy

"Jeff, this is Mouthy. She's my proxy." Slender waves his hand at the girl. Jeff grows frustrated.
"Another one! I thought you would stop gathering them after picking up Toby! How many proxies do you need?"
"I currently have six on hand." Jeff's jaw drops and he starts counting on his fingers.
"So, Masky, Hoody, Toby, and her. So there's still two I don't know of. Boss, why haven't you told anyone else about her or the other two?"
"Jeff, I haven't told you becau-" Slender begins his explanation but the hotheaded teen interrupts.
"I wouldn't be surprised if you haven't even told the other three." Jeff stands off his chair screaming at the tall man as he turns his head to the girl on the floor and she looks up to him, pausing her stitching to nod in silence.