The day Kim turned twenty-one, Sara brought her to the playroom to show her the birthday presents. “First undress,” Sara commanded. “All the way down to your birthday suit. Take it nice and slow.”

Kim was wearing only a plain white dress, white cotton panties, and worn white slippers, so the undressing didn’t take long.

“Good girl,” Sara said, and she handed Kim her presents, an elegant silk scarf and a sleek glass dildo.

“But it’s so big,” Kim said of the instrument.

“Yes, because you’re a big girl now. Now hold still and don’t make a peep.”

For some minutes Sara admired the naked girl, her very slightly more than modest round breasts with tiny pink nipples, her long slender legs and slim but shapely hips, her plump sleek pubis curving into the simple notch of her sex, the pudgy hood of her clitoris clearly swollen in anticipation, the complicated knot of succulent clit almost in view. The girl shivered. “It’s cold,” she complained.

“Hush,” Sara said. “Your final warning.”

Sara had purposefully turned the playroom temperature all the way down. Sure enough, Kim’s nipples had tightened and crinkled with the chill, giving Sara’s teeth something to grip. She bit gently at first. Kim’s gasp was all but silent. Sara’s teeth tugged the tiny nipple. Kim could only stand there, squeezing the scarf and the glass dildo as she submitted to Sara’s bites, nips, and nibbles.

Having toyed with the tips of Kim’s breasts for some minutes, Sara left the well-moistened and somewhat distended buds to touch the skin of Kim’s face, using tongue and fingers to trace the delicate whorls of each ear, the fluttery lid of each eye, the moist membrane of inner lips. While Sara kissed and licked and bit Kim’s earlobe, her middle finger pushed into the girl’s mouth, almost but not quite far enough to make her gag. “Good girl,” she whispered in Kim’s ear as she withdrew the finger.

A moment later that same finger explored the girl’s genital crease. Yes, her little sex was moist. The finger pushed further. Ah, soaking wet inside. While small sounds of squelch filled the playroom, Sara’s other hand slipped behind to smooth the firm flesh of Kim’s boyish bottom. Abruptly the naughty finger dipped into the secret crevice to circle the pebbled rim of anus. A crescent of fingernail teased the crinkled aperture until it opened just enough for entry.