Negative Reinforcement in bondage.

"Start walking," the man says, "Or else."

She tries to stare him down, but the thick collar doesn't allow her to.

The man flogs her ass!
The long tails of the flogger go around her arm binder, making it very little protection.

'Fuck! Okay okay!'

She starts to walk her best, but she's certainly not ready for this.
How could she be?!?

He's not impressed.

"Go faster. Or else!"

He strikes the ground for emphasis.

'I'm trying! I'm trying!'

And so she walked...and walked...and walked some more.

If she slowed down, she was flogged.
If she lost her rhythm, she was flogged.
If he just felt like it, she was flogged.

She endured an hour of this before the man came around the front of her.
He just grabbed her tit, pinching her nipple and spoke to her again.

"Another hour of this and then the Boss comes in for his inspection.
Will you have a nice red ass for him...or will you be a good Slave?"

'What awful choices!!!'