And there they were. He was naked before his mother. The body warmed air in his tiny bedroom felt strangely cool. Mark felt free and exhilarated."Mmmm...", Helen purred, looking down evaluating her son's member. "Seven inches? Close to it, anyway. A little lean, nice and veiny, but well proportioned. Very well." She looked up at her son. "That's a fine tool, love. You have a beautiful cock."Mark smiled proudly. His mother flipped the nozzle of the hand lotion bottle open, and very carefully. So Regan saw me walking and says, “God, make sure you don’t catch that on anything. It’s just swinging everywhere. You might hurt something.” She giggled. I was rock hard and quickly dashed to Rachel’s room. I told Rachel about it a few minutes after it happened and she smiled wide. So I knew this would entice her and it did.She took a step forward and looked me in the eye and said, “You want to fuck her, don’t you?”I looked back and without breaking gaze said “Yes.”She replied, “Show me.”So I. She clamped her thighs together hard and curled up her body, which was almost naked and lay on one side. Her beautiful firm boobs were jutting out with hard small nipples poking out. I quickly took off my t-shirt and boxers and tried to open her legs. But she had clamped up and would not open up. So I used all my strength to flip her and make her lie on her tummy, which she did not resist. Now her small bums were facing me and I could see her pussy hair. So I quickly straddled her, held her. We did about an hour of this and then I tied him to the hitching rail I'd made and went to get the mare.I'm sure to the mare's way of thinking she was being smart by not following me when I tried to lead her off toward the water. This was not an unusual event. In fact about seventy percent of horses will not follow you off on the first try. It's much easier to get them going with a helper to urge them on gently from behind, but it isn't absolutely necessary.The fall back plan when a horse won't.