They squatted down in the edge of the thick growth and she set up the scope, pointing it at the small barn and corral laid out in the canyon floor beneath them. The corral was perhaps a quarter-mile off but the scope would bring it into close view, permitting them to see everything. She focused the instrument and then rolled out of the way for Doreen to see.

"We're just in time," she murmured. "And like I told you, the stallion's a bit balky. He's the sorrel."

Ace was indeed a handsome brute of an animal. His coat glistened in the sharp morning sunlight. He showed only a slight interest in the mares, a gray and a bay, and continued munching hay out of the trough before him.

"What are they doing with that burro?" Doreen asked.

Eileen explained that she was watching Jackson, the same burro she had seen yesterday. When a stallion proved balky and unwilling to mount the mares, she added, the men had to provoke his jealousy and get him more in the mood for servicing his mates. Burros, she said, were exceptionally horny and needed no such enticement; they were always ready to belly up to a mare and sink their cocks in a hot pussy. She allowed Doreen exclusive use of the scope, since she knew quite well what was going on, and explained the proceedings as she watched with her naked eyes.

"They get Jackson excited and he tries to mount the mare," she whispered. "But they don't let him fuck her; that would produce a mule instead of a horse colt and nobody wants a mule. So, as soon as it looks like he's going to get his prick in the mare, they slap it down and pull him off. After a while Ace will get interested and do his work properly."

Doreen expressed a compassionate regard for the frustrated burro, who was braying angrily and scuffing the dusty corral's floor in his impatience to start fucking. He sniffed under the gray mare's tail and mounted her with surprising ease. Doreen marveled at the way the tiny burro could strain and stretch himself in his effort to get his cock into the mare's pussy. Jackson cavorted like an acrobat and once seemed on the verge of crawling onto the mare's back.