The bathroom

She walks with a brisk pace towards the ladies' room at the back of the store. You follow her stealthily, hiding behind some bookshelves and making sure to stay just out of her line of sight. She pushes the door to the ladies room open without looking back and you quickly follow, catching it with your hand just before it fully closes.

Entering the womens' restroom, you see the redhead entering the closest stall. The bathroom's only other occupant, a blonde girl touching up her makeup in the mirror, notices you and drops her brush.

"Eww, what the fuck you perv! Get the fuck out of here!" Inside of the stall, you can hear the redhead's bag drop to the floor.

Confident that universal acceptance will save you again, you speak calmly to the blonde. "It's alright, I'm {firstname} {lastname}. I'm allowed to be in here. As a matter of fact, I think you're the one who should leave."

"Alright, whatever you say, weirdo," she replies as she leaves the restroom. Hmph, no respect...you might have to teach her mouth a lesson later. But as your mind returns to the present, you realize that you and your prey are all alone in this ladies' room. You walk back to the door and hit the lock, grinning. It's just you and her, all alone.