Pinkie's Last Two Braincells

Pinkie doesn't have a whole lot going on up there

Pinkie Pie is a lot smarter than she looks, but every now and then, her mind goes on vacation, and it's up to her remaining two brain cells to get through the day.

WARNING: this story contains futa on futa, selfcest (kinda?), ball sucking, power bottoming, office romance rendezvous, and a clever visual metaphor used to personify the abstract concept of thought.