Window Watching

I lounged on the couch when Mia, my younger sister, tugged me toward the blinds with her usual spark. "The new neighbors are putting on quite the show again," she whispered, eyes gleaming. "That guy next door has no idea how much his wife loves riding him in the open." I chuckled, trying to play it cool. "Spying on the young family next door? Bold, even for you, Mia. What, their backyard antics getting you all worked up?"

She shot back with a grin, "Please, like you haven't peeked. His cock looks hard enough to split wood, and she's dripping just thinking about it. Why watch when we could do better?" The air thickened as we stood close, her shoulder brushing mine while we spied the couple's heated tangle through the glass. Witty barbs flew: "Admit it, bro, this makes you horny too," she teased. "Or are you scared your little sis knows how to handle more than binoculars?"

Tension snapped when Mia turned, pressing against me with fierce confidence. "Enough spying. I want that cock of yours right now." She dropped to her knees, freeing my already hard length and taking it in a slick blowjob, her tongue working with expert swirls as I groaned. "Damn, Mia, you're not holding back," I panted, but she only smirked up at me, strong hands gripping my ass.

We tumbled to the floor, clothes scattering. Mia straddled me, her pussy wet and dripping as she sank down, riding with powerful thrusts that left us both sweating. "Fuck, your cock feels perfect," she moaned, witty even mid-thrust. "Bet the neighbors wish they had this rhythm." I gripped her hips, matching her pace while she controlled every move, her ass bouncing as she came hard, walls clenching tight.

Panting, she flipped us, demanding more until I exploded, cum spilling deep inside her. We lay tangled, hearts racing from the rush. Mia laughed softly, "Round one was fun, but next door has company coming over tomorrow."

The blinds swayed gently as distant laughter echoed from the neighbors' yard.