The sister, a force to be reckoned with, finished her training routine with a flourish. Sweat dripped down her chiseled abs as she approached her punching bag, a faithful companion that had seen better days. With a sneer of frustration, she threw a powerful punch, but the bag broke from the force of her blow.
"Damnit," she muttered under her breath, scowling at the ruined bag. She knew she needed a replacement to continue her training, but she wasn't in the mood to go shopping. An idea struck her, and she turned to her brother, who was watching her from the corner of the room.
"You're always getting in my way," she said, her voice dripping with sarcasm. "I think I'll use you as my new punching bag."
Her brother, a scrawny thing, tried to protest, but she ignored him. Instead, she began to tie his hands above his head, securing him to a beam in the ceiling. He squirmed in discomfort as she turned her attention to his lower half.
"What are you doing?" he asked, his voice shaking.
"Just making sure you don't go anywhere," she responded, and attached a rope around his balls. She stepped back and admired her work, a wicked grin on her face.
"I hope you're ready for a beating," she said, and threw a light punch at his groin. He yelped in pain, and she laughed.
She began to punch him with more force, and he tried to wriggle free. She continued to beat him, her punches becoming more powerful and precise. With each blow, her brother's face contorted in pain, but she didn't let up.
"You know, you could always use a punching bag," her brother said, gasping for breath.
"Where's the fun in that?" she replied, grinning. "Besides, I like the way you scream."
Her brother rolled his eyes, but he couldn't deny the thrill of being at her mercy. She was a strong, controlling woman, and he couldn't help but submit to her.
As she continued to punch him, he felt a strange sense of arousal. He didn't know if it was the adrenaline or the pain, but he couldn't deny the way his body responded to her.
"You're such a pervert," she said, laughing. "But I guess that's why I like you."
She threw one last punch, and her brother collapsed in a heap on the floor. She untied him, and he groaned in pain.
"You're going to pay for that," he said, rubbing his sore jaw.
"I'm sure I will," she replied, grinning. "But for now, I think I've earned a break."
End of Chapter One.
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