"Pst...we're in public daddy calm that thing down stairs down" I make suggestive looks at his crotch

He looks at me confused and whispers "What are you talking about?" as he unknowingly rubs his throbbing erection against my butt. I giggle, leaning into it. "I mean that thing downstairs...look how it's pushing out my new jeans." I make an exaggerated wiggle and bat my eyelashes dramatically before giving him a cheeky grin and a little ass shake with the extra wide ahegao, hoping he doesn't notice how turned on I am.

I let out another giggle as I sway my hips back and forth again. "Well if you're gonna act like that, maybe later tonight we can have some fun with it...and I mean, who wouldn't want to fuck their stepdaughter's perfect ass?" I tease playfully while grinding against him even harder, my own excitement growing as his thickness slides between my cheeks. "Oh, and by the way," I wink, "I heard you like it big...and tight."

"Ooooh, I love it when you talk dirty," I purred into his ear as he rubbed against me harder, his thick cock sliding back and forth between my cheeks. "And don't worry about your 'gift', sweetie. My ass can take all of that and more." I grind against him some more, making sure to move just right so our hips connect perfectly as I give him an extra-wide ahegao, showing off his cock buried inside my ass cheeks in the process. "And if you want it, it's all yours, anywhere you want it... Right here and now."

I smiled impishly as I felt his cock twitch against my sphincter. "Don't worry, daddy," I whispered breathily into his ear. "We can always find a way." With that, I leaned back slightly to look up at him and gave him my best ahegao grin while slowly spreading my cheeks apart so he could see just how ready I was for him. "Just think about it... The store's busy and there are all these boxes we could hide behind," I stage-whispered, glancing around before winking at him again. "Or we could just move to the back and find one of those cozy little changing rooms..." With that, I reached back and gave his ass a squeeze with both hands, grinning even wider as my own excitement built up inside me too. "What do you say?"

"Come on, daddy," I purred, leaning forward slightly so our hips were flush against each other again. "Give me that big load... Right in my perfect little ass."

"Oh, you betcha," I whispered with a giggle, grinding my hips against his as he led me through the store towards one of the changing rooms. When we reached it, he unlocked the door and pushed me inside, closing us in behind him. He backed me up against the wall, pressing his erection against my ass cheeks once more while I wrapped my legs around his waist, pulling him closer still. "You're gonna love this, daddy," I breathed as I reached back and took hold of his cock, guiding it towards my waiting entrance. "Just imagine all that hot cum filling up your stepdaughter's perfect ass." My ahegao grew wider as he pushed forward, sliding easily inside me with one powerful thrust that made us both moan loudly in pleasure.

I giggled and let out another moan as he began to pump into me, hitting my sweet spot with every thrust. "Oh yeah, just imagine that," I panted between words. "My mom always said I'd grow up to have a nice butt... And she never lied." I grinned wider as I squeezed my ass muscles around him, milking his cock with each motion. "I bet you can even feel it..." I purred, lowering my head and sticking out my tongue to give him an exaggerated ahegao. "How big is it?"

He groaned as he pushed deeper inside me, hitting deep within my guts. "It's bigger than anything else in this room," he grunted between breaths. "Bigger than your mom's...bigger than any other woman's..." His words trailed off into a moan as his thrusts became faster and more urgent.

I felt the familiar tightening in my lower belly, signaling that he was close. "Come for me, daddy," I whispered huskily, arching my back to meet his hips with mine. "Fill your little stepdaughter's perfect ass with your hot cum..." My words were met by a loud groan as his cock throbbed inside me, and I felt the first blast of hot seed spurt deep into my bowels.

"You like what you see, huh?" I teased with an extra-wide grin as he pounded into me harder, depositing more of his hot seed inside my waiting ass. "Don't forget who inherited mommy's perfect posterior..." I wiggled my butt against him suggestively, enjoying the feel of his length stretching and filling me up so perfectly. "And you're the lucky one who gets to enjoy it..." My words were cut short by another orgasm, this time triggered not just by his touch but also by the sheer power he possessed within those thick, hard inches buried deep inside me. With a moan of pleasure, I clenched around him, tightening my muscles as he emptied the rest of his cum into my ass, filling me up and leaving me satisfied in ways I hadn't even known possible.

"I should tell mommy that," I giggled breathlessly as he continued to pump into me. "She'd be so jealous... She always thought she had the best ass in town." I reached back, still rubbing his cock through my skinny jeans as we picked up the pace again, lost in our mutual pleasure. My ahegao widened even more, my cheeks bulging out and accentuating the fullness of my round butt. "And what do you think... Does it feel better than hers?"

He groaned, his hips beginning to buck wildly as he neared his own climax again. "Better," he grunted through gritted teeth, "so much fucking better..." His fingers dug into my hips, urging me on, encouraging me to take more of him as he thrust even deeper, driving himself over the edge once more with a shout that echoed around the small changing room. As he came, his hot seed filled me up one last time, leaving us both spent and satisfied in each other's arms.