Inside the doctor's office, Billy sat on the examining table. His mother had just left, but his cock continued to stand up beneath his white Jockey shorts.

Nancy, the lovely doctor, stood back a pace or so, looking at him. Taking her stethoscope, she listened to his chest and lungs. She tapped his knees and elbows. She looked into his throat and ears. Her examination was swift and professional. Finished, she sat down at her small desk and wrote her findings in his chart. Billy watched her, his interest already aroused by looking up the receptionist's skirt. He had not lost his hard-on during the physical.

As Doctor Nancy sat at the desk, the smock parted, exposing an expanse of a creamy thigh, halfway up. Billy's eyes gazed there. From the corners of her eyes, she was watching the boy. Putting her pen down, she turned in the chair, facing him. Leaning on her elbow, she slumped, still looking at him with a supposedly professional interest. She saw a young boy, slim, but well nourished. He was good-looking, his chest hairless, as were his thighs.

Billy swung his feet back and forth. He wasn't the least bit nervous, nor did he show any embarrassment because his cock was still hard.

Nancy ran her eyes up and down the boy's body. She was interested in young boys Billy's age, very interested. In fact, her interest in young boys was so great, she had difficulty keeping her hands off their bodies when she examined them. Sometimes she could touch them intimately with a pretense of medical interest, but she was very careful, choosing the boys that accepted it as part of her examination.

Looking at Billy, she thought he wouldn't protest where she touched. He had a hard-on, already, which was a good sign to her. Looking at the clock, she saw she had kept Billy in her office longer than her allotted fifteen minutes. But her excitement was growing. She was sure his mother wouldn't come barging in. She had been watching Joan and Billy for some time. Joan wore tight, sexy clothing, and Nancy was certain she understood Joan very well.