The gym's storage room was dimly lit, filled with the scent of sweat and rubber. It was the perfect place for a quick massage, or so thought Jake, the muscular and cocky personal trainer.
"Hey sis, could you give me a quick rubdown on my glutes?" Jake asked, wincing as he stretched his sore muscles.
His sister, Sarah, a no-nonsense businesswoman, rolled her eyes. "Fine, but only if you promise to stop whining about your tiny problems."
Jake grumbled under his breath, but he knew better than to argue with Sarah. She was a force to be reckoned with, and he had learned early on to pick his battles.
As Sarah dug her fingers into Jake's ass, he couldn't help but moan. "More, sis. Please, give me more."
Sarah chuckled and patted his head. "Good boy. Now, get into the classic doggy-style position."
Jake did as he was told, eager for more of Sarah's touch. She pulled out a 7-inch, 1.5-inch girth dildo from her purse, making a surprised face.
"Oh, this old thing? I was just gonna use it as a doorstop."
Jake begged her to use it on him, but Sarah insisted that he needed to "earn it" by showing her some real pain. She started fucking him with the dildo, hitting his hanging balls hard and making him yelp.
"Is that all you can handle, wimp?" she teased, "You're such a baby, can't even take a little ass-play."
Jake pleaded for more, but Sarah kept going at a maddeningly slow pace, driving him wild with frustration. She finally gave in and started fucking him harder and faster, making him moan and gasp for air.
"Don't stop, sis. Please, never stop," Jake begged.
But Sarah pulled out the dildo with a pop, leaving Jake whimpering. "Told you, you couldn't handle it," she said, smirking.
But then she added, "But I'll give you another chance...if you're a good boy."
Sarah put the dildo back in, and they continued their playful and dominating session. As they walked out of the storage room, Sarah turned to Jake and said, "By the way, your form was terrible today. I'll have to work on that ass some more."
Jake groaned, still in the doggy-style position, and Sarah held the leash as they walked out of the room. It was clear who was in charge, and Jake was more than happy to oblige.
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