"Oooohh, your cock's so fucking hot!" Carol whispered in a low, throaty tone that barely carried to Marie's ears. "I love it to be right up against the lips of my pussy. It makes me want to fuck so bad!"
"Yeah, I feel the same way," Mike replied. "Why don't you go ahead and sit down on it? Let's get it on, baby. Mom'll be back soon."
"Silly, she knows I've been letting you fuck me, doesn't she? What would it hurt if she came in? Mmmm, I'd love to ball the shit out of you while she was watching! Or maybe watch you two going at it hot and heavy!"
Marie's face burned upon hearing that. Truly, as Mike had so often said, the girl was a totally sexual animal! The very thought of letting her son spread the lips of her pussy with his big cock and shove the hot tool up her cunt while Carol watched filled her with mixed emotions. There was the expected sense of prudent restraint, of course, but Marie found another part of herself warming to the idea. Perhaps she was one of those sexual freaks who found a special and definite thrill in avowing herself to be seen while she fucked and sucked. The thought intrigued her even as another part of her mind rejected the idea.
Regardless of her own feelings about mounting a sexual exhibition for the young girl, Marie found it erotically stirring in the extreme to watch Carol arouse Mike even more fully. She quickly saw that Carol was playing her own game: the girl was deliberately teasing him, making his lustful passion even hotter, so that she could benefit more completely when he finally shot his load into her cunt. The girl continued to brush the lips of her pussy over the head of his prick and to offer a continual stream of suggestions about how they might later work some even more arousing variations upon the same, ever-delightful theme.
Marie became more and more excited as she watched the young couple twist about in paroxysms of lusty anticipation; Carol's voice became huskier still as she continued uttering suggestions of a depravity which shocked even Marie's horny ears. Finally, after driving poor Mike almost to the breaking point, she told him to aim his cock up into the mouth of her cunt and to waste no time in surrendering his control over his balls. She made it amply clear that she hungered for his load, that her cunt wanted to feel the hot spray washing over it and further inflaming the tender flesh with exquisite sensations. If Marie had ever had any doubts about the veracity of Mike's descriptions of the girl and her fully matured taste for fucking, her performance that afternoon obliterated every one of them.
The stellar performance also resulted in Marie becoming so desperately aroused that she lost all control of herself. Even knowing that the sight of this young couple engaging in acts of the utmost sensuality was making her so incredibly horny that she would not be able to control her own reactions, she could not force herself to move away from the lewd scene. Watching a couple in the flesh, she quickly decided, had infinitely more power of arousing her than seeing the same acts being performed on the screen of a cheap movie house. If only because of Carol's utterly convincing depiction of the hotly aroused girl, a performance which had nothing phony about it, she responded to the scene with all the ample sensuality which had become so deeply ingrained in her nature. Her full, big-nippled tits ached as never before and her pussy had become a quagmire of lust-moistened flesh.
Choking back a cry of sexual agony, Marie brought one hand up to cup her left boob, caught snugly in the nylon cup of her bra; she began rubbing her pussy with the other, pressing through her dress to exert a deliciously arousing pressure upon her swollen gash. Her fingers worked skillfully and soon had her body throbbing ad over with sexual tension; only another minute, she knew, and she would be in the throes of a powerful climax which would inevitably force lusty cries of joy from her throat and thus give away her presence. Even that threat could not make her legs move, however, and she remained slumped against the wan as she watched Carol's pert young ass sink lower upon her son's upraised cock. The girl uttered a low, whimpering cry of the purest joy as she felt her cunt being split by that big, hard tool. She clenched her butt-cheeks into knots of hard, quivering muscle and wiggled them ecstatically from side to side, no doubt making her cunt do wonderful things to Mike's prick, and continued to sob out pleas for him to shoot his wad.
"Agghhh!" Mike suddenly moaned, grasping her asscheeks firmly and digging his fingers deep into her flesh. "Ooooh, you're fucking my prick off! You're sucking me off with your cunt!"
Marie closed her eyes, unable to watch the young couple's excited fucking any more. She could hear their gasps and cries of elation mounting higher, and the sounds of their lust were almost as effective as the sight had been. Her fingers continued to claw at her tit and pussy, digging harder, and soon brought her to the brink of sexual oblivion. She pulled her hands away just in time to keep from masturbating herself into a climax; she knew that an orgasm would bring cries of joy to her lips and thereby give her away. When she opened her eyes, however, she saw that Carol was looking at her over Mike's shoulder; the girl's deep blue eyes were twinkling with merriment and she looked gloriously happy.
Marie stood there for a moment, shamefully embarrassed, and then turned away, cheeks aflame with a deep blush. She hurried along the corridor to her own room and went inside, but there was no escape for her; Carol and Mike came into the room a few moments later. They burst in upon her stark naked and came over to her bed, where she had thrown herself down. Carol urged her not to feel ashamed of herself for having watched them; the girl admitted that she had wanted to be caught in the act of fucking Mike, and that she had deliberately enticed him into fucking her there on the sofa so that Marie might come upon them and surprise them while they balled.
"Seeing you standing there made it so much better for me!" the girl insisted. "Mmmm, I just came and came and came! It wouldn't have been nearly that good if you hadn't been there!"
Carol went on to say that she had caught a glimpse of Marie almost as soon as she had spied them and that she had gone all out in am effort at exciting Mike to the utmost, simply because she wanted to fire him into a superb performance. Marie could hardly believe her ears, but the girl seemed perfectly sincere. She could not deny that Carol had succeeded in building young Mike's lusts to a feverish pitch; the memory of the boy's fervent groans as he worked his swollen cock into the girl's pussy was still strong and left no doubt of his eagerness to shoot his wad into the girl's cunt.
Marie apologized for having sneaked up on them and explained about the rain and her lack of shoes. As Carol brushed her apologies aside and insisted that there was nothing to apologize about, Marie gradually became aware of their nakedness; they had evidently rushed directly into her bedroom without bothering to put on anything. Mike's big cock still reared out from his crotch, looking very ready for some wild fucking, and Marie's pussy began tingling harder as she looked at the big tool. Carol displayed her nakedness without the slightest trace of shame. She had a lovely pair of bits, Marie saw, and the small patch of golden brown fur covering her cunt mound might almost have been clipped from her head. A thick stream of Mike's cum ran down her thighs in creamy rivers, but the girl seemed not even to notice.
"Actually I was just warming him up for you!" Carol murmured, giving Marie a thoughtful look. "So why don't you get up and get your clothes off? I'm dying to see him shoving his cock into you!"