The shared living room of our childhood home had always been a place of comfort and familiarity, but today it felt different. The air was thick with tension, and my heart raced as I watched my brother approach me with a mischievous glint in his eye.
"Hey, sis," he began, his voice dripping with a mix of playfulness and desire. "Could you do me a favor?"
I raised an eyebrow, amused by his audacity. "What kind of favor?" I asked, already knowing the answer.
He hesitated for a moment before blurting out his request. "You know... jerk me off?"
I couldn't help but laugh at his boldness. "Are you kidding me?" I said, playfully insulting him. "You really think I'd do something like that for you?"
But he persisted, promising to return the favor if I agreed. I was still skeptical, but curiosity got the better of me.
"Fine," I said, relenting. "But I'm warning you, I won't go easy on you."
He grinned, clearly excited by the prospect. I wrapped my hand around his cock, feeling a mix of shock and amusement at what I was doing. But before I could even begin, I slapped his cock with my other hand, causing him to flinch.
"Hey!" he protested. "What was that for?"
"Just toughening you up," I said, a wicked smile on my face. I slapped his cock again, harder this time, causing him to moan in a mix of pain and pleasure.
"Stop it!" he begged, but I ignored him. I slapped his cock again and again, each time harder than the last. He started to enjoy the pain, begging for more.
I was satisfied with his reaction, slapping his cock even harder. He squirmed, unable to take it anymore. And then, with one final slap, he came, much to my amusement.
"Feeling victorious, I playfully insulted him again. "Clean up after yourself," I said, smirking.
He complied, still in a daze. I reminded him of his promise to return the favor, feeling both relieved and excited at what was to come.
"I'll be waiting," he said, his voice filled with anticipation. And so, I awaited my brother's next move, ready for whatever came next.
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