Jennifer began stroking the two men's hardnesses more rapidly now, and Ellen could see the long thick shaft of Phil's large fleshy penis burgeon out with each successive jerk. Ellen was only a few scant yards away, and her impulse was to run from the horrifying scene; but she realized mat one false movement could send down another slide of sand and call attention to herself.

And so she watched in horrified fascination as her sister's fingers skinned the thick foreskin of Phil's uncircumcised cock rapidly up and down the full length of it, the huge bulbous head bursting evilly into view like a giant monster crawling from a secret lair with each downward stroke of her hand. Ellen was close enough to see Jennifer's contorted face let out a deep groan as Phil's hand moved down and joined the other man's finger beneath her thin bikini panties. The older sister began hard spasmodic jerks on the two sperm-inflated cocks as Phil slid the panties down her hotly writhing thighs, exposing a glistening mound of thin curling pubic hair just inches away from his huge impatiently pulsating penis. The moonlight shone brightly down on the strange orgiastic scene and cast a lewd glare over the boy's long white shaft that was closest to Ellen's vision. She was near enough to see the head was covered with a white sticky-looking fluid that must have been the lubrication men secreted from their organs when they became excited. Both penises looked monstrously large to Ellen as she had never seen one before, and she wondered how it would be possible to have something like that inside of her. It looked like it would be terribly painful, almost impossible to take.

Ellen knelt down closer to the edge of the sand dune. Phil had looked up and must have seen something from the way he had turned away from Jennifer for a moment. Oh God, he would never forgive her for spying on them, but she just had to find out what was going on.