That river in Egypt

Damocles was not letting her put a sock in his mouth, especially one she just wore. Absolutely not, he held his lips closed and his jaw down tight, shaking his head from side to side.
"Oh, you're not going to open up for me?"
There was no way he was going to, he refused. She leaned in close, holding the sock right against his mouth but he wouldn't open.
"You keep forgetting Pet, you don't have a choice"
She brought her leg up over the chair and stomped down onto his balls. He lurched forward and started to groan before she stuffed the sock into his mouth. Even though it was in, she didn't lift her foot up. In-fact, she kept it pressing down on his balls, it felt like she was crushing them against the chair. She stared into his eyes as she stood there, watching him squeel into the sock.
"The only choice you have is how much you suffer on your way to embracing your true place as my pet. Keep it in"
She finally took her foot off his balls, letting him hunch over in the seat.
"Doesn't feel good to disobey me, does it? Better listen next time"
He didn't bother answering, he just breathed heavily as the pain in his balls began to slowly fade into a dull ache.