Note: This story was dynamically reformatted for online reading convenience. Summerisle By Gypsie Sweetnickers Chapter 4 MSolo, Mast, Incest Mother Son Toby lay on his back in bed. He'd been roused by the noise about 20 minutes ago. Now he was breathing slowly and shallowly, intent on listening to the sounds echoing through the house from the bedroom directly above his. Toby knew that his parents had sex of course, but he'd never heard them like this! The creaking of the bed frame teamed with his father's moans and cries of pleasure and, more vocally, his mother, were like something out of the movies he had "borrowed" from his father's secret collection a couple of times. The sounds, particularly the moaning, were having quite an effect on the 17-year old. His cock stirred under the sheets as his mother panted and cried out in pleasure. It was all too much for Toby. He reached beneath the sheets, pushed his shorts off and began to jerk his cock in time to the groans. He knew if he closed his eyes he could imagine the cries coming from somebody else, and that it was his cock that inspired them. Toby imagined it was Erin who was moaning. Erin was Tara's best friend, and, unbeknownst to her, she was the focus of Toby's fuck fantasies. She had platinum blond hair and huge blue eyes. She had an almost boyish figure - except for a pair of tits that, while not being bigger than Tara's, seemed huge on a girl as petite as Erin. Toby imagined Erin sprawled out beneath him; her eyes squeezed tightly shut and her nipples stiff as he plunged his cock in and out of her tight little cunt. In reality Toby had never actually fucked Erin, but in his private thoughts there was almost nothing he hadn't done with her. Something odd began to happen to Toby's fantasy. He had just begun to kiss Erin's tits when she began to change. Her hair lengthened and it became both wavy and raven black. Her eyes darkened from blue to chocolate brown .Her tits grew slightly, becoming heavier with larger nipples. With a shock Toby realized he was now dreaming of fucking Tara, not Erin. Yet the image of his younger sister thrusting her hips with each stroke of his cock, thrashing her head from side to side, all the while making those loud groans of ecstatic pleasure, did nothing to stop Toby from enjoying playing with himself. If anything he increased the speed and intensity of his strokes. Tara clung to him as he filled her hairy little pussy with his throbbing shaft, her moans intensified with each down thrust. With labored breath she managed to gasp out, "Fuck. My. AAAAAsssssss!" Toby's eyes flew open. Had he just heard that?"] Toby listened carefully, again he heard the muffled voice pant, "Fuck my ass, please uuuuuuuhhhh." Toby closed his eyes again. The image of Tara reappeared in front of him. She was on all fours. As he moved closer she reached back and pulled her butt cheeks apart. Taking hold of her hips, he placed the head of his cock at his sister's tight little ass-hole. As he pushed in, Tara let out a satisfied grunt, and then turned her head to look back at him with smoldering eyes. Now the image shifted again. No longer was Tara his fantasy partner. She looked older and her hair was long, straight and dark brown. The ass that Toby's belly was smashing into was decidedly juicier and wider than the one belonging to his 15-year old sister. Toby reached forward and cupped her swinging tits. They were significantly heavier. "Oh. My. God!" thought Toby. "I'm fucking my mom! I'm fucking my mom in the ass!" At that moment, his hand and sheets were drenched in cum.