She wants to show off her best feature

"Maybe I should start at the back," she giggles, reclining her seat and turning to kneel on it, reaching into the back seat as she looks at you with teasing eyes. Her rump is every bit as delicious as you expected, the firm cheeks round and inviting, split by the sliver of thong.

"You're proud of that ass, aren't you?" you chuckle, feeling your cock twitch and swell as you look at her kneeling beside you. Outside, the girls are soaping the windows, providing a modicum of privacy.

"Mmmmm, I've been told it's my best feature Mr. Sharp," she replies in a sultry voice. "If I had boobs like Julia I'd be perfect."

"You're perfect the way you are," you growl softly, reaching out to squeeze a handful of her ass, making her purr and wriggle, her eyes warm and inviting.

"That's so sweet," she purrs, "And your hands are so warm and strong. They make me feel so good." She reaches over and squeezes the bulge of your cock through your pants, biting her lip as she looks at you with wanton eyes. You undo your pants and free your straining meat, grinning at her as you caress her sweet teen rump. She licks the palm of one hand then grasps your shaft, stroking it slowly, her thumb rubbing over the sensitive tip.

"That's nice Millie," you praise her as your hand slides between her thighs. She widens her knees with a soft gasp to give you better access, and your fingers find the damp heat of her thong covered pussy, rubbing it slowly. "This is even nicer."

"Oh Mr. Sharp! You're so strong! You make my heart beat so fast," she murmurs, her hand continuing to stroke you. She squirms, rocking her hips slowly and pressing her cunt against your exploring hand. You can feel her heat growing by the moment, and you slide your hand under her thong to pull it to one side, your fingers playing over her swollen labia.

"Oh My!" she gasps as you tease one finger between her cuntlips, pressing between her sodden folds. Her hand strokes and squeezes your cock as she rocks herself against your exploring hand. "I can...can suck you Sir! You can...can finish in my mouth! I swallow!"