Amy was still on her tummy on the bed, a pillow under her hips, her short skirt remaining hiked up over her waist to expose her behind jutting up high from the pillow. But now her panties had been removed and were wadded up between her widely-spread thighs. She still wore her knee socks and saddle shoes. Her blouse was bunched up over her shoulder blades. From behind, Dan saw that Julia was beside her on the bed still in her nurse’s uniform, propped up on her hands and widely-spread knees, her right hand was slowly stroking the small of Amy’s back with the tips of her fingers and fingernails.

Julia’s left hand rocked slowly up and down, palm down across the lower portion of Amy’s absolutely gorgeous behind. To Dan, it looked like Amy was trying to grind her behind into the palm of Julia’s hand. At about the same time, Dan noticed about an inch of what was obviously a rectal thermometer poking out from between the index and middle fingers of Julia’s left hand as it slowly rocked up and down, the motion of her fingers gently moving the thermometer in and out of Amy’s tight firm tushie.

As Julia’s hand rocked, Amy’s hips responded, in opposition to the direction of the thin glass thermometer that was so obviously slowly sliding in and out of Amy’s well-formed tushie. For just a moment, Dan imagined Julia positioned face-down on his bed with her short nurse’s dress hiked way up and her legs widely spread, her hips propped up by two pillows, but in his mind’s eye it was his hand placed across Julia’s behind, gently raising and lowering the tip of the stemmed jewel extending from between his fingers.

Dan returned to the bed and sat down behind Julia, placing his items on the bed. His gaze was fixed on what she was doing with Amy. He slowly lifted the hem of her short skirt and draped it across the small of her back. He lowered her panties until they were tightly stretched between her well separated thighs midway to the knee. Gently he reached out and ran his finger from her clitoris to the rear of her vagina. He paused and then reversed direction back towards her clitoris, moving ever slowly, reversing and repeating his motions after pausing and dallying with the small nub each time his fingertip encountered it. Julia began to make approving sounds and motions.

With his other hand he withdrew one of two thermometers that had been standing in the opened jar of cold cream that he had brought from the bathroom. While circling Julia’s clitoris with one finger, he teased her tight rosebud with the cold-cream anointed bulb of the thermometer. She moaned softly as he slowly urged about half the length of the thermometer into Julia’s exposed rosebud, while alternately continuing to slowly tease her clit and slide his finger up and down between her moistened vaginal folds.

Dan slowly withdrew the thermometer until only the bulb remained inside Julia’s tight pucker, paused for a moment and then just as slowly pushed it back in. He let go of the end of the instrument and briefly sat back just watching before gripping it again to slowly twirl it between his fingertips, all the while watching the attention Julia was paying to the thermometer jutting from Amy’s firm behind.