She jerked her mouth off his. "Mark, for heaven's sake," she gasped, "stop it. Let me up. I'm your mother now. This isn't right."
"Aw, you're not really my mother," Mark said serenely. "Let's have a little fun, Aunt Karen. This is fun, isn't it?"
Karen gawked at him. She really didn't know how her sister had raised Mark and Stacy, but it was clear that Betty hadn't told them much about sex. Mark seemed to have no idea that it was wrong for blood relatives to make love.
Karen was acutely conscious of it, however. She lusted for Mark, admired his superb young body, but she was not prepared to make her fantasies come true. No way was she going to make love to her own teenage nephew, her newly adopted son. The idea was sickening…
"NO, it's not fun," she said coldly. "I can't breathe, and you're wrinkling my dress. Now, please, let me up."
He grinned wickedly. "You're not telling the truth, Auntie," he mocked. "You got turned on when I touched you – and I can prove it."
He jammed his hand up between her legs and touched the soaked crotch of her panties. Karen blushed deeply. Oh, God, how ashamed she felt as he touched the evidence of her lust, her cream-soaked panties. He began to rub her crotch, and she almost moaned aloud in her hot excitement.
"N-no, Mark," she gasped, "don't do that. I won't make love to you. It's just not right, can't you see?"
"Nope," Mark said, "I can't. Maybe I'm dumb, but I can feel you creaming right in my hand. You want it, Karen, and I want it, so why don't we get it on? I'm a real good lay, honest."
Karen couldn't believe her ears. How could a teenage boy know such things? In spite of his young innocent face, Mark spoke confidently, like an experienced stud. He was rubbing her crotch expertly, stimulating her clit and her swollen wet pussylips. He was getting her almost unbearably aroused.
"Mark, you don't understand," she said desperately. "It's against the law for relatives to make love. Besides, I'd never be unfaithful to Bill. Just forget it, Mark. The answer is no. Now let me up."
Mark studied her frantic face. She was flushed with arousal, but her protests were sincere and determined. If he pushed her too far, she'd scream for Bill, and all hell would break loose. He had to change her mind, win her over, but not by force.
"Okay, okay," he said jovially, "if that's how you feel about it."
To Karen's relief, he started to slide off her, moving downward. She took a deep breath. Then, before she knew what was happening, he flipped up her skirt, covering her face, and grabbed for her panties.
"Mark, NO," she cried.
The skirt was in her way, cutting off her view. She felt Mark tugging her panties down, pulling them off, felt the cool basement air on her naked snatch. She blushed hotly. His hands were between her thighs, forcing them apart, and she knew he was gawking at her naked exposed slit.
"Mark, for God's sake, stop it," she gasped. "I'm going to have to call Bill if you don't behave."
"Take it easy, Auntie," he chuckled. "Here's something you're gonna love."
Karen managed to get the skirt off her face just in time to see her nephew's blond head dip between her thighs. She started to shriek for her husband, but the noise was strangled in her throat as she felt a stunning blast of pleasure.
Her young nephew began expertly eating her pussy.
Karen gawked, gasped, couldn't believe what was happening. The pleasure was real enough, though. She felt Mark's tongue, hot and wet and slightly rough, licking eagerly from her tiny quivering clit right down to the pale brown wrinkle of her asshole. It felt incredibly good.
"Oh, God," Karen moaned, sinking back limply.
She couldn't help it. She was starved for sex, and the pleasure was too great. She'd never had her pussy licked before, not in all the years of her marriage. She'd never dreamed it would feel this great. She just had to let herself enjoy it for a moment.
Mark tickled the tiny sensitive shaft of her clit, running his tongue swiftly around it, tickling, lashing, lapping. His tongue crept farther down, wickedly rimming the drooling mouth of her cunt, snaking into the plump hot folds of her pussylips.
Lower still, and she felt him lapping and rimming the tight mouth of her bumhole.
"Ohhh, nooo," she gasped. "Please, no!"
Yet she didn't move, didn't push him away. She was protesting more against herself than against him. She was afraid she'd lose control of herself. She needed this so much, wanted it desperately, that she was in danger of committing incest with her own adopted son. She must resist.
"Mark, stop it," she panted. "That's filthy you mustn't."
Mark grinned to himself. What a hypocrite she was. She was creaming all over his face, practically drowning him in her hot steamy cunt juice, yet she was telling him to stop. Well, he knew what to do about that.
"Relax, Auntie," he said. "It's gonna get even better. You'll really dig this."
He began snaking his tongue up her cunt.
"Ahhhhh!" Karen whined.
She couldn't help that cry of bliss. It was the most delicious thing she'd ever felt, Mark's thick rubbery tongue creeping up her long-starved twat. He did it slowly, teasingly, wriggling his thick tongue around inside her, greedily lapping up her cream. Karen thought she'd faint with pleasure.
"N-noooo," she whimpered, "noooo…"
But she meant yes, as Mark found out when he pushed her long legs farther apart, bending the knees. She let him spread her thighs lewdly apart.
Now he was able to thrust his tongue into her all the way to the root, stuffing her seething silky box. He thrust hard, and she creamed furiously.
"Ahhhhh," she moaned, "ahhhh, God…"
She was shocked at her own lewd behavior. She lay there unprotesting, her legs thrown far apart like a wanton whore, while her young nephew tongue-fucked her. He worked his thick wet tongue deep into her aroused cunt, noisily eating her, and Karen's heart pounded with horny excitement.
She had to stop before they went too far, she knew that, but for the moment she just couldn't bear to have that dizzying pleasure end. She creamed and moaned shamelessly as Mark continued to work his big thick tongue in and out of her gushing twat.
Mark had an excellent view of his aunt's pussy, a delicious expanse of healthy scarlet flesh surrounded by gilded blonde fur. She had a small tasty plump clit, and her cunt was remarkably tight for a woman her age. She tasted good to him. Best of all, he'd discovered that beneath her frosty exterior, Karen was all woman. She loved what he was doing to her, even though her conscience was obviously protesting.
She'd said something about it being wrong for relatives to make love. Mark had never heard of such a thing, and he dismissed it. It bounded ridiculous to him. Women were always thinking up crazy excuses not to fuck, even when they were shivering with lust, like Karen was now.
He worked his tongue faster and faster in her fiery-hot nipping twat. She creamed so heavily that her juice ran out and puddled on the mattress. Her lusty tall body quivered, and her moans became low and hoarse and hungry. He figured it was time to make his move. She'd never get more aroused than this…
"Ooooo," Karen moaned with disappointment as she felt his tongue slipping out of her hotly aroused box.
Dizzily she looked up and saw her grinning nephew kneeling between her legs. He was looking at her confidently, almost mockingly, as he unzipped his jeans. Karen saw him take out his cock.
Her eyes focused wonderingly on his crotch. He had a bigger cock than she'd expected in so young a boy, a thick six inches of rosy stiff rod. The head was large and fat and dark red. The small slit mouth was drooling a little pearl of juice.