Lily pressed her eye to the keyhole, pulse quickening at the sight of her brother sprawled naked on his bed. At twenty-two, she was no shrinking violet, and the forbidden thrill only sharpened her grin. "Well, well, big brother," she called, swinging the door wide with a bold push. "That cock of yours looks hard enough to hammer nails. Planning to keep all the fun to yourself?"
He jerked upright, startled but smirking. "Lily? You spying now? Thought you had better manners." She stepped inside, hips swaying, refusing to flinch. "Manners are overrated when you're this horny. Besides, that view deserves an audience."
Tension crackled as she shed her shirt, revealing smooth skin. "Come closer if you're brave," he teased, voice low. She laughed, sharp and unafraid. "Brave? I'm the one who'll make you beg, brother dear. That ass of yours looks like it needs attention too."
She dropped to her knees, taking his cock into her mouth for a slow, teasing blowjob that had him groaning. "Fuck, Lily, you're relentless," he panted, hands in her hair. Her pussy grew wet and dripping as she worked him, strong fingers gripping his thighs. "Told you I'd take charge," she murmured between strokes.
They tumbled onto the bed, bodies sweating in the heat of the moment. She straddled him, guiding his hard length into her slick pussy with a wicked smile. "Feel how wet I am for this?" Their rhythm built fast, her ass bouncing as witty banter flew: "Harder, or are you tapping out already?" "Not a chance, sis—you're the one panting."
The climax hit hard; she came first with a cry, followed by him spilling cum deep inside her. They collapsed, panting and glistening. "Round one was just the start," Lily whispered, already plotting more.
But little did she know, the keyhole had only unlocked the beginning of their tangled nights ahead.
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