Chapter 15

Nena felt a hot flash of anxiety travel through her body, making her almost physically ill. Carlos sat looking at her, transfixed, his eyes taking in every intimate detail of her chest, the sight of his sister's breasts causing an almost mental overload of sexual feeling. He shifted in his chair to relieve his stiffness, but kept his eyes focused on his sister's full mounds, his eyes riveted to her heaving bosom.

Seeing Carlos reaction to her, caused Nena's heart to flutter. She found it hard to breath. Her respiration coming in short, shallow gasps from her terror and fear.

"They're big aren't they," Constancia said, gazing at the obviously excited boy.

Carlos could only nod mutely. His mouth was as dry as cotton.

"Would you like to ... touch them?"

Carlos nodded quickly in the affirmative, faintly trembling with desire. Nena began to sob quietly. Carlos looked at her and began to feel guilty for thinking about his own sister in such a vile way.

"Don't worry Carlos, your big sister WANTS you to touch her. Don't you Nena?" Constancia's hard gaze bored into Nena's watery, red-rimmed eyes.

Nena took a deep breath, filling her lungs, trying to calm herself. Petrified at where all this would lead, but more so her inability to stop it. She felt like she was the passenger on a run away train heading straight towards a solid brick wall at 100 miles per hour.

Stuck, not knowing what else to do she mumbled nervously,"Yes, Carlos I ... I ... want you to touch them."

Carlos was didn't quite know what to do, but ... his sister said it was O.K. She was crying ... but she did give him permission. If she really didn't want him to fondle her tits she would have said something, wouldn't she? He was confused, but he followed his body's desire and quickly scooted his chair up until he was facing his older sister, her firm tits pointing at him only a few inches away.

"Go ahead ... touch them." He heard Constanica's voice direct him. "squeeze them if you want. Feel how firm they are." Trembling slightly, he slowly reached up and grasped the big mounds squeezing gently. god they felt so wonderfully firm. He squeezed a little harder, causing Nena to wince. His adolescent cock jutted out in his pants like a steel pole.

"Feel her nipples. See how they stand out? That means you are exciting your sister?" Constancia said, enjoying the humiliation of Mary Helen.

Nena groaned softly and softly bit her bottom lip as Carlos fondled her nipples, bolts of pleasure radiating from the sensitive tips.

Carlos regained his voice, "god. They're so big ... so firm ... they feel ... great," his hands continuing to squeeze and fondle his sister's big tits as if he was kneading two big globes of firm dough. His big, round eyes were transfixed on his manipulating hands that continually squeezed and fondled the big firm tits of his beautiful sister. He was in a state of high arousal as he realized that he would be able to do whatever he wanted to Mary Helen. A pang of guilt hit him at the thought, but it wasn't enough to distract him from continuing the non-consensual assault on his tormented sibling.

Nena kept her eyes clenched. Trying to distance herself from her feeling of shame and embarrassment.

"Carlos, I'm going to show you how to ... REALLY excite your sister. Would you like that?" Constancia asked almost gleefully.

Carlos smiled back at her nervous anticipation, not sure what to do.

"Pinch your sister's nipples Carlos, and pull them up."

Carlos hesitantly moved the fingers of his hands to his sister's nipples and grasped them, slowly pulling them up, the heavy globes suspended by the hard nubs causing them to stretch.

Nena eyes flew open in surprise. She gasped loudly, "No ... stop ... stop ... stop it Carlos," his touch caused her to catch her breath. Causing her stomach to lurch with arousal. She reached up quickly in a panic and made an attempt to grab her brother's arms.

Before she could grab them she heard Constancia's commanding voice, "Drop your hands Nena." "Now!" she repeated again when Mary Helen wavered. Then Constancia said firmly, "Carlos needs to learn what excites a girl and you're going to teach him."

"Please Constancia ... you know ... how ... sensitive my nipples are," Nena said pleadingly.

"Drop your hands Nena. I mean it!"

Nena's hands remained in mid-air a second longer and then she lowered them slowly to her lap while Carlos kept on raising Nena's tits higher until his hands were almost at chin level. Both of her firm mounds hanging suspended by the sensitive nipples. Carlos shivered in sexual wanting at the effect this was having on his sister. Eyes lidded, Nena shifted slowly back and forth on the sofa as if in a trance. Her little hands were clenching and unclenching in her lap. Her breathing was quick and shallow. She wasn't talking, but was making ... mewing noises, whimpering like she was in pain. Her breathing was slightly more labored and coming out in a rush every few seconds as if she was out of breath.

Constancia looked at Carlos approvingly," Your learning quickly Carlos. Isn't Mary Helen a great teacher?" she said facetiously.

He smiled, feeling more in control, less nervous, an inexperienced boy with a newfound confidence. Without any prompting from Constancia, he pinched his sister's nipples a little harder and slowly pulled them out towards him. She began to whimper and moan uncontrollably.

"Please Carlos" she panted, "Please ... stop ... this ... god ... I'm your sister," Nena shuddered uncontrollably, barely containing herself, the thought of the video tape on the backburner of her mind, the only thing keeping her from slapping Carlos hands away from her. Yet the pull the sweet pull ... was intoxicating. The hard, stimulated nubs radiating an almost painful heat all through her breasts, ricocheting through the rest of her body making her feel, hot, restless. She was aware that she was becoming deeply aroused, her vagina puffed up and swollen. Her slippery juice coating her labia, exciting her, making her want to ... touch herself. To run her hard fingers up and down the slippery gash. Rub her clit. She trembled. A shiver ran through her entire body making her breath catch as if she had been dunked into a barrel of freezing water.

Constancia noticed Nena's arousal and told Carlos to slowly let his sister's taut breasts down. He complied with an almost sad look, like a little boy being told that he needs to turn off the T.V. and hurry off to bed. Nena was lightly perspiring and her rapid, shallow breathing made her firm breasts shake. Her nipples were completely extended out and hard from the stimulation to her breasts. She knew she was wet, which made her turn red with embarrassment and shame; the fact that her brother, her little 15 year old brother was breaking her down sexually, reducing her to a panting mass of sexual depravity.

"Would you like to see more Carlos?" Constancia asked.

Carlos looked at her excitedly, like a little boy waiting in line to see Santa Clause on Christmas Eve. Nena was obviously physically excited, but mentally doing her utmost to tune out the sensations in her body and focus instead of getting out of this situation before things got further out of control.

"That's enough," she said, her voice thick. She repeated an octave lower, almost plaintively, "Please that's enough. That's all he needs to know now. Please Constancia!" she added pleadingly. Her eyes betraying her fear, shame and humiliation.

Without acknowledging Nena, Constancia said, "Pull up your dress and show Carlos your little pussy. Show him what it looks like when it's excited. Show him how wet it is"

Nena hesitated -- the anxiety and arousal together causing her mind to go blank -- confused. Carlos looked at her anxiously, his tongue licking his dry lips.

"NOW!" Constancia commanded.

Nena, her arms shaking, took the hem of her dress and pulled it back, exposing more and more of her firm legs and thighs. Each new patch of skin exposed, causing Carlos's cock to throb harder in his pants.

"Scoot up Mary Helen, how is Carlos going to learn about sex, if you're hiding yourself?" Constancia chided her reproachfully.

Nena was so confused and ashamed that she couldn't think straight, the whole experience almost surreal, like she was watching somebody else. She did as she was told, driven by the fear of the video, the commands of her tormentor and to a lesser but growing degree the incestual desires of her little brother. She sat on the edge of the sofa, her vagina partly hidden by her dress. Shaking, she pulled the rest of her dress back, revealing the dark triangle of her pubic hair.

Carlos moved in closer to her, his breath quickening at the sight of his sisters dark snatch in front of him.

"Spread your legs Nena," she heard Constancia say. Embarrassed, she opened her legs wider, the aroused slit wet at the juncture of her soft thighs sticky with her juices. Carlos scanned his sisters fevered body, his gaze taking in her gorgeous face, her taut breasts, her smooth tummy, which led his eyes to the thick bush of her vagina. He was so overcome with lust and excitement, that he stared at her dumbfounded, not knowing what to say or do.

Constancia looked at him, noticing the tell tale bulge in his jeans. "Carlos, you must be uncomfortable. Go ahead and take off your pants if you want. Your sister won't mind, will you Mary Helen?" Constancia said, while rhythmically tapping her purse.

An involuntary nervous spasm ran through Nena, "No!" she said fearfully, in a low voice. "That's it, O.K? Just stop now ... PLEASE ... Constancia before things get completely out of hand!" Nena was beside herself with the conflicting thoughts and feeling resonating in her body. Her body was flooded with sexual arousal, yet the logical, reasonable part of her psyche; her values, morals, principals, the foundation of everything she had ever stood for was reaching desperately for a hand hold. Something, anything to grasp and hold onto before she went completely under and drowned

Constancia looked back at her blankly, not saying anything. Just watching Carlos as he slowly and deliberately unbuckled his jeans and pulled them down his thin legs along with his boxer shorts. He was overcome with the need to continue what he had started with his sister; he couldn't stop now. He couldn't stop now if someone put a gun to his head at this point.

When Nena saw her brother's hard brown cock she couldn't help but stare. He was young, but he was big. Much bigger then a teenaged boy ought to be. Unconsciously she sucked in her breath as her eyes scanned the length of her brother's cock, observing its impressive girth. It jutted straight out, fully engorged with blood. Hard as steel.

Constancia saw that the head of his cock was covered with a shiny layer of pre-come. She reached over and took him by the hand while also giving an appreciative look at his well- endowed manhood. "Go ahead and touch it Carlos. Go ahead and touch Mary Helen's vagina," she said softly, pulling him closer to his sister.

Nena stared at Carlos with terror in her eyes and an almost perverse need. Her eyes were glued to his cock; it was throbbing to her own rapid heartbeat, as if they were connected together somehow. His balls were heavy with his teenage cum. She imagined the potent spunk percolating in his ball sack ready and waiting to-- Nena shook her head defiantly. Constancia is turning me into a cheap slut, she thought to herself desperately. I can't let her destroy me. I have to be strong. I must!

Nena drew back with fear as Carlos tentatively reached over and ran his fingers over Nena's mound, eliciting an involuntary whimper from her. She tried to pull farther back but was stopped by Constancia's command, "Let him touch you. Let him touch your pussy. It can't hurt now can it, after all the cocks that have been in there," she said mockingly.

Nena gasped at the intrusion as her brother's fingers made contact with her damp hole, and then slowly began to stroke his sister's steaming gash, moving his fingers up and down the ever-moistening slit, causing her to shift on the sofa. She unconsciously flexed her legs and slightly raised her ass off of the sofa. Carlos moved his fingers into Nena's wet cunt his fingers probing deeper into her wetness. She groaned deep in her throat with pleasure as Carlos pressed his fingers deeper into her. Nena sensually squeezed her firm thighs together groaning with need as she squeezed her brother's hand within her sensitive cuntal passage. The only thought in her mind was the pleasure, the incredible pleasure that was building up deliciously inside of her.

She shifted again involuntarily, trying to get Carlos to stick his fingers into her deeper. Without even being aware of it, she lifted her firm, round ass off the sofa and arched her back, her heavy breasts pushing out from her chest, opening her up legs further, causing her little brother's fingers to probe ever deeper into the wetness of her cunt.

Carlos's penis throbbed. More of his pre-come bubbled to the surface of his hard prick. Nena pushed up from the floor with her feet in order to get more of her ass off the sofa, forcing more and more of her brother's fingers into her. Her passion eclipsed her reasoning. All her feelings centered on the pleasure she was receiving. She bobbed up and down languidly, using her legs to push up and down, her firm thighs flexing on each stroke. She slowly started losing herself to the fingers touching, stroking, stimulating her. Her mind drifted.