Danny refrained from teasing. He seemed competent in his examination, using his fingers only to lay her pussy lips further open and to explore the consistency of each type of flesh he found, but even those contacts acted as powerful stimuli. Helen gasped frequently and moaned from time to time. By concentrating exclusively on her hips, she kept them still, but her belly writhed almost continuously.
At last her son straightened and gazed across her trembling body into her eyes. "Okay, I guess I've got a good picture of the parts," he said. He frowned as if trying to recall something. "Oh! I forgot!" He bent again and put his fingers to her pussy.
She dragged in a huge lungful of air as she felt him pealing back the fleshy hood over her clitoris. "AGHHH!" Her hips leaped.
Danny winced but continued his exploration, feeling the slopes and rubbing the tip of the tiny lump.
"Ah…! Ah…!" Helen's hips writhed as she swung them from side to side.
Danny took his hands away and straightened again. She saw beads of perspiration on his upper lip and he wiped his forehead with the back of his hand. "That was your clitoris, then," he said.
"Yes!" she panted. "I'm sorry I couldn't hold still. That's the most sensitive spot a woman has, Son."
"It's okay. I could see it pretty good. It's awful little, though, isn't it?"
"Yes. It does swell, though. It's like a man's penis."
"Yeah?" He glanced down at her pussy again. "Thanks, Mom. That gets the old stuff out of the way."
"Old stuff?"
"Well, you know how they are in school. They do all the stuff they call 'basic' first. Like anatomy in this course. And then there's a lot of jazz about how a baby develops and gets born. After that, they separate the class. Mr. Duffy's got us guys now: he's going into stuff about marriage relations. I really need help seeing what he's getting at there!"
Helen stiffened. "Like what?" she demanded.
"Like stimulus centers and reactions."
She heaved a sigh of relief. She'd visualized his wanting to explore the mechanics of insertion. "Well…" she hesitated. "That's going to be tougher, Son."
"How come?"
She knew if she let him experiment in the techniques of stimulation she wasn't going to be able to maintain any semblance of calm. It was barely possible she might lose control of herself, altogether, and grab him in her passion. She couldn't let herself forget that strange inner excitement she sometimes felt about him. On the other hand if it was legitimate for him to examine her as he had, it was surely legitimate for him to see for himself how various sensual centers could be used to affect the woman's responses.
"Sexual stimulus affects involuntary nerves," she said slowly. "I know I couldn't cooperate right. There's a natural effort sometimes to interfere – the sensation's just too strong to take, even though it's wonderful."
Danny nodded, his face clouding with disappointment.
"Look, Danny," she said impulsively. "What time is it?"
He glanced at his watch. "Three."
"All right. There's time and there's a way. Run back to my room and get two or three pairs of my nylons."
Danny scowled, perplexed, then shrugged and turned. Helen smiled through her turmoil to note that he literally ran. In a moment, he was back with a handful of her stockings. He still showed no sign of understanding.
"I don't get it, Mom."
"I know. The problem is my being able to stay in one place so you can keep at a spot long enough to find out what it does."
"Yeah," he nodded.
"There's only one way to be sure of that. Tie me in the right position."
His eyes widened and he stared at her incredulously. "Tie you!"
"It's all right. It won't hurt me, and you can go at whatever speed turns out to be right. But you'll have to realize I'm going to act differently from what you've ever seen me do before."
"Okay. How shall I tie you?"
"Better get my hands out of the way, for one thing." She extended her arms as if she meant for him to spread-eagle her.
Danny quickly lashed her wrists, securing the stockings from each to one of the table legs. She trembled.
"We'll want to finish before five forty-five," she reminded him. "I want to be presentable by the time your father gets home."
He stared at her. "That's a long time!"
"A lot more than you need. I just don't want you to get preoccupied and forget what time it's getting to be."
"Okay!" There was awe in his tone. "Gee! I can really take my time!" He looked hungrily at her breasts and she winced. "What next? I've got your hands."
"Well, I'd certainly try to clamp my legs together."
"Oh! Okay!" He knotted a stocking around each of her thighs, at the knee, and fastened the loose ends to the table legs, spreading her crotch tautly. Without consulting her, he then used a third pair of her nylons, looping them on her ankles, and to her amazement, running the free ends to her shoulders, where he tied each to an upper arm, pulling her heels against the sides of her buttocks.
"Danny! My goodness!"
"Well, that'll keep you from moving your knees much."
She laughed shakily. "I can move my feet, though."
"How?"
She raised her feet and realized that there wasn't enough length in the hose to let her move them more than a few inches. "I take it back," she mumbled. "They aren't going anywhere."
"Do you mind if I talk to myself once in a while?" her son asked.
"No."
"What if I forget and use the wrong word?"
"There are no 'wrong words', Danny," she reassured him. "Only words that are more appropriate at one time than another. Don't worry about it. Just concentrate on one thing at a time."
He grinned and came to her side. "I know this isn't going to seem right, Mom, but Mr. Duffy said the lips were the first zone."
"Mmph! Well, all right."
He took her face between his hands and bent close, touching her lips with his. The first contact was light and dry, no more erotic that their customary goodnight kiss. But his lips worked on her and the pressure increased and their mouths got wet. Her son's kiss was transformed by some alchemy she made no effort to understand to that of a lover. Warmth seeped through her and she let her lips part, touching his with her tongue tip. His tongue darted out to meet hers and then drove into her mouth. She gulped and began to suck. Like a symbol for a penis! she thought. Even if it is just his tongue in my mouth, he's got part of him inside me! My own son! The conscious admission at a moment when sexual desire was making her writhe horrified her. She tugged at the nylons and whimpered in her throat. She was writhing sensually by the time Danny raised his mouth from hers.
"Wow!" he exclaimed. "That works!" He flushed. "On me, too."
She glanced at his trouser front and saw that it was tented.
He's got a beautiful cock, she thought. I know he has! It was beautiful when he was little. Pride surged in her and she had an irresistible longing to see what kind of a man her son was becoming.
"Danny, did Mr. Duffy say anything about visual stimulus?"
"Yeah. He said men got a lot more excited looking at things than most women."
"That's true, I think. When a man's doing things to her, though, seeing his body stimulates her."
"Yeah? It does? Hey, okay if I get undressed, then?"
"Yes." She tried to shake off the guilty feeling that washed over her.
Danny shed his clothes with adolescent awkwardness. She studied his body. He had fine shoulders, as she already knew, and his belly was flat and hard, more like a man's than a boy's. His hips were narrow and taut looking and his cock stood proud and thick. Circumcised (because the doctor had spoken of cleaning problems and the danger of infections), the head was a great, meaty bulb, nearly black with its charge of trapped blood. The shaft was frightening for its diameter; she guessed it was considerably thicker than her wrist and knew it was far bigger than either Art's or Barry's.
That's his Indian half, she thought with a thrill of pride. But God, could a woman really take that!
Danny returned and bent over her again. When he did his cock rested on the edge of the table, rigid and hard-looking. He played with her breasts, squeezing them gently, massaging them, and experimenting with her nipples. She had no idea how much of her resulting excitement resulted from his manipulations and how much from her painful awareness of the situation. Regardless, desire flamed in her and she lashed about on the table, her hips rocking from side to side and her pussy pulsing with eagerness.
Danny ran his hands over her body, fingering her curves with a smile on his lips. "Duffy says there's lots of secondary centers all over the body," he remarked. "Someday I'll learn more about them on you. Right now, I want to be sure I see what the primary ones do." He went back to her crotch.
He caressed her pussy lips gently, the light touch shooting fierce waves of pleasure through her and producing vigorous undulations in her hips.
She moaned happily. "Oooh, that feels good, Son! Mmmm!"
He ran a fingertip around the rim of her opening and she grabbed a taut stocking in each hand and pulled furiously.
"Oh…!" she gasped. "Oh, Danny!"
His fingers left her for an instant, and then she felt them stripping back the hood of her clitoris.
"Mmmm!" She bucked violently. "Aghhh!"
He coated the tiny organ with thick juice from her vagina and began to rub it. She lost all control of her actions, thrashing in her bonds and moaning loudly. The pleasure that flooded her was so intense it hurt, and a vast hunger grew in the mouth of her pussy. While Danny continued to massage her clitoris with the finger of one hand, those of the other hand returned to her labia.
"Don't get mad, Mom, but… Well, this was one of the centers." He slipped a finger up into her, twisting it back and forth and jabbing it in and out.
"Ohhh…! Ahhh…! I'm not… mad…! It is one…! Oh, Danny…! Son…! Ram it hard!"
He jammed the finger in to its knuckle.
"Use… use two…! Maybe three…! Omigod, Son…! Ooooh…!"
She felt a great increase in fullness and knew Danny had inserted more fingers. She slammed herself onto his hand repeatedly, her pleasure driving her past caring how she looked to him. She became aware of slippery strokes over her rectum.
"What's… that?" she panted.
"My thumb, Mom."
"Oh."
His thumb paused over her tightly closed anus and pushed. She felt her sphincter stretching to admit it and tilted her head back.
"Danny…! Aghhh…!" She cried out and let her ass flail on the hugeness of his buried thumb. "My God, Son! Omigod!"
"I got stuff up your vagina and your ass, Mom." His voice sounded horse to her. "It sure makes you move around!"
"God, yes! It's going to make me have an orgasm!"
"Yeah? Really?"
"Mmm…! Yes…!"
"Mom, he said the biggest stimulus of all was… well…"
She gazed groggily at her son. He stood erect, both hands hidden behind the forest of her pubic hair, his enormous cock jutting over her. The shaft pulsed and there was a strand of clear mucus dangling from the slit in the angry-looking head. His pubic hair was black and thick and she recalled with a shiver the great size of his balls. Suddenly she realized what he was hinting.
"No, Danny! Not that! No, for God's sake!" But why not? she asked herself in a flash of recklessness. Why not? That's part of it! "All right, Danny! He's right!" she conceded. "Go ahead!"
Danny trembled violently as he withdrew his hands. He seized the huge shaft and guided the head down to her cuntmouth. His face expressed wonder as his heat and hers mingled and she began to open to his pressure. She felt the head sink through the firm rim of her labia and glide slowly up the length of her vagina, that hard shaft stroking inward after it.
She thrust herself onto the intruding prick, her buttocks quivering and tight and her belly hard.
"Ahhh!" She bubbled with joy. "Ahhh!"
At her first movement her son's hips surged forward to drive his prick to its limit in her and his pelvic bone slammed onto the outer flesh of her pussy. He jerked his hips back, withdrawing the buried cock until the head lay just inside her labia, then rammed it home again. She cried out and flung herself onto the driving prick. Her son's thrusts accelerated and he banged violently at her.
"Mom! Mom! I can't stop!" A deep note of panic rang in his voice and he had an anguished expression on his face. "Mom! I didn't mean to! I just wanted to see what it did to you! I didn't mean to fuck you all the way!"
She saw the depth of his distress and urged him. She soothed him with a gentle urgency. "It's all right, darling! It's all right! Fuck me, darling! Go ahead and fuck me! It's all right, Son!"
His cock slammed back and forth savagely and her cunt flamed. She felt as if the shaft were crushing her tissues against the bony circle of her pelvis and his cockhead were displacing all her organs. His anguish had cleared, replaced by ecstasy, and his hands kneaded her waist and pulled her buttocks against his thighs.
"Yes, yes, darling!" she panted.
"Mom! I'm gonna…"
"It's okay, honey. Let it happen."
"Mom…! Mom…!" he croaked with excitement. Then, with a note of triumph, "Here it comes…! Unnnh…!"
His cock shaft pulsed sharply and hot jism seethed into her vagina, filling her belly with foreign heat. She clamped the rim of her cunt on his cock, squeezing with hard contractions and praying for her own orgasm. Danny broke into convulsive tremors and the great cock went limp and soft. He pulled it out instantly, great drops of sweat pouring from him.
"Mom!" he murmured brokenly and came around the table to hold her face. "Oh, Mom, I'm sorry!"
"Danny, baby," she whispered. "Oh, Danny! How did it feel, Son?"
"Jesus, Mom! Like nothing I ever felt before!" He grinned bashfully. "You got awful excited, didn't you."
I still am! she thought. She nodded and smiled. "You found all the spots, Son. There's still a lot to learn, though."
"There is?"
"Yes. Maybe I'd better teach you while all this is fresh in your mind."
"Would you, Mom?"
"Yes. You might as well untie me now."
"You know? That was kind of fun. Having you tied up, I mean. I like that."
"Well, maybe I'll let you do it again sometime."
"Oh, Mom! Would you! Please?"
"Yes."
"Promise?"
She laughed and hard thrill raced through her. "I promise."
"Wow!" Danny shouted.
He untied her quickly, and she went back to the bathroom, where she douched and washed. As an afterthought, she sprayed herself with her best cologne. When she returned to the front of the house, Danny was sprawled in an armchair in the livingroom. He glanced up at her entry, astounded at her continued nakedness.
"Time for more of the lesson," she said with mock formality.
"What are you going to teach me now?"
"Let's demonstrate instead of talk. Okay?"
"Sure."
She stretched herself along his body, straddling one of his thighs to let its hardness ease the hunger of her pussy and putting her arms around him. "Kiss me again, Son."
Their lips locked and her tongue probed for his. He explored her throat with his tongue tip and she writhed on him, her breasts scrubbing the sparse hair on his chest, her cunt grinding on his thigh. When she drew back to look at his face through a film of happy tears, she knew he was no longer fooled by the academic pretense.
When he spoke, his voice had a tone of new maturity. "Mom," he said very softly. "You just want to fuck with me, don't you."
She cringed. "Yes," she whispered. "I didn't until it happened, but I do now. Besides, there really are a lot of things you don't know yet."
"Yeah." He kneaded her ass and sighed. "I've dreamed I was fucking you lots of times. It never did turn out like today." A faraway look of bliss stole into his eyes. "Never wild like that was, Mom the second I stuck my cock into you I knew I couldn't stop. I knew I had to go all the way!"
"I know."
The telephone rang. Helen groaned and scrambled off her son. "Why don't you get it, honey? You've got to get your blood circulating again."
"Okay," he grinned, laying a hand on her belly for a moment before leaving her. In a moment, he was back. "Dad," he said. "Says there's an emergency meeting of the state highway engineers tonight. He called to say he'll be home the middle of tomorrow morning."
"Oh, dear!" she wailed.
Danny grinned. "Hey, Mom! We can play a lot! Okay?"
She realized how such a suggestion would have horrified her two hours earlier. "A regular orgy, you mean," she said dryly.
Danny grinned and ducked his head. "I guess so. All kinds of games."
"Yes. I guess we can do that."
"Wow! Gee, thanks, Mom!" He grabbed her, pulling her to him and rubbing his body against her breasts. He slid his hand down her side to her hip, then around between her thighs to clutch at her pussy. She squirmed, but his other arm was like a bar across the small of her back, and he dug his fingers deeply into her, raising her feet from the floor. "This is fun, Mom! I like playing with you like this!"
Savage lust roared in her and she clung to him. "I like it too!" she said in a strangled tone.
"Hey, Mom, is it true animals and people fuck sometimes?"
"Danny! How should I know?"
"I mean, would it be possible?"
The pressure of his hand in her vagina burned wariness out of her. "Why not. Male animals have penises and get erections, just like men do. Females have… vaginas."
"Yeah, I guess so. I heard someone talking about it. Mom…?"
"Yes?"
"Mom, I'd sure like to see that once."
"Ugh! I don't know where you'd find an animal that would do it!"
"I mean a male animal and a woman."
"That's even more unlikely! You'd never find a woman who'd do that for you!" She sighed and pressed her thighs together on his hand, then grinned broadly. "Other women aren't going to do weird things for you like I am."