She collars you

She stares at you for moment, contemplating what to do with you and then snaps her fingers.

“I know!” She says before getting a rather sinister look on her face.

You shiver in fear for a moment, dreading what she has in mind for you.

“And I've got just the thing...”

She turns around and starts rooting through her backpack, returning a moment later with a piece of cord tied to a simple collar and smile on her face.

“You're gonna be my pet for the night.”

You sputter and spit at her demand trying to refuse it, but before the words can come out, she's already put the collar on you.

“Now then, as long as you wear this, you'll obey my every word. Understand?”

Your face burns with humiliation, and you can't bear to look her in eyes.

“...yes,” you mumble.

“Good. Now then, get on all fours and...”