scared of him.
Then he raised his arms to her shoulders and looked her in the eye for a moment. He studied her, and her eyes seemed to say, 'Please leave me alone. I just wanted to tease you.' Billy got even madder.
'You cunt!' he shrieked and pulled her head down to his with all his strength. His trembling mouth found hers, and he forced her mouth open with his tongue. Robin groaned as his tongue explored her mouth. She struggled to pull away from him again, but he was now tickling the roof of her mouth, and slowly she could feel her fear turning into pleasure. She could feel her high nipples becoming erect, sticking out from her thin bathing suit, and she was becoming more aware of his strong grip on her.
His hips were now moving under her in a circular motion, his rod grinding hard against her crotch, and now it seemed that he was teasing her, instead of the other way around. Billy was wild with rage now, his tongue plunging deeper into her delicious mouth, then licking her juicy lips as she started to relax and enjoy his touch.
His hands were digging into her back, scratching, clawing, trying to find something to hold onto. His urgent hands found the strings to her bikini top, and, grabbing the straps in both hands, he ripped them apart. He felt her lovely back open up to his demanding palms, and he lay there rubbing his hands fiercely down her backside, his tongue all the while racing inside her hot mouth.
As his fingertips drove deep into her ribs, his lips found hers, moist with the sweetness of womanhood, and he sucked at them as hard as he could, seemingly trying to swallow them.
In his passion, Billy had completely forgotten that this little creature lying on him was his sister. He had one goal in mind, and that was to fuck her. He wanted to show his prick-teaser of a sister where it really was at.
Robin stopped trembling, and, succumbing to his rage, she began enjoying what he was doing. Her mouth found his, and now her tongue was racing wildly through his mouth, her sweetness dripping onto his tongue, her tongue lightly running over his gums. Billy went wild, turning complete animal as she kissed the corners of his mouth and sucked at his long tongue.
His little sister was on fire now, her thighs bouncing off the sides of his hips, while he jammed his erect dick against her crotch. His tongue came out of her mouth and trailed a path over her cheek, down under her chin and over her neck. The scent of her perfume made his nostrils tingle, and he began nibbling at her earlobe, squeezing it between his lips, then smothering her ear with it. He dug deeply inside, and electricity shot through her body. She could feel hot juice flowing out of her cunt onto her bikini. She wanted to fuck.
'I'll show you what a sex maniac is like,' he whispered in her ear, and he reached up to her shoulders and pulled her straps down over her arms. Her magnificent boobs were now staring him in the face, and he marveled at the way her nipples stuck up. She bent forward a bit, now enjoying every fiery touch he planted on her, and her nipples were hitting him in the face. He could feel her entire body becoming moist from perspiration, tiny beads of sweat appearing between her luscious tits. He stuck his tongue out and licked the beads from their valley, then his lips found her waiting and anxious nipples.
Her sweet nipples tightened even more as he tongued them, pinching them with his lips and squeezing them, feeling her entire chest come alive with desire. She was smothering his face with her boobs and he loved it, sucking her nipples with every breath he had in him. His mouth was so hungry, so starved, and her nipples had so much to feed him. He sucked and fucked at them for what seemed like hours, Robin getting hotter with every pinch, his hands running up and down her back, digging deep into her hot flesh, his fingers finally finding her bikini bottom, slipping into it. He probed her buttcheeks for a minute, still sucking at her nipples like a baby; then his longest finger found her asshole. He moved his fingers around her bung a few times, tickling her, sending wild vibrations through her body; then he took his longest finger and jammed it as hard as he could up her asshole.
'Oh, Billy!' she screamed in ecstasy, and Billy could feel her ass muscles contracting around his finger, then relaxing again.
'You bitch! I'll teach you!' he growled, driving his stiff finger deeper inside her bung, tickling the life out of her insides. She went wild with desire, and started kissing every inch of his hairy chest, licking him, sucking his erect nipples, and moving her ass in a circular motion so that the finger inside her brownie could touch every possible nerve in her ass.
'Harder! Harder!' she begged him, and he stuck another finger up her quivering asshole.
'That's it, Billy! That's it!' she screamed, and he could feel her climaxing, shaking violently as her juices spilled onto his hand. He could feel her bung close around his fingers, and he drove them in farther, trying to tear her ass apart. But it only made her orgasm more pleasurable, and as she climaxed, she moaned heatedly.
CHAPTER TWO
Limp from her come, Robin was ready to obey every command Billy gave her. Her head was resting on his chest, and she was trying to regain the strength to breathe again. Billy realized that she had finally submitted to him, and a wave of power, of sheer strength, crept through his entire body. His prick was stiffer than he'd ever felt it, and he wanted desperately to screw her.
'Oh, Billy, you turn me on so much,' she whispered to him, licking his still swollen nipples, but he didn't want to hear her words. He wanted to fuck her. He withdrew his two fingers from her asshole, rubbing the liquids they had collected back onto her own skin, all his fingers now inside her bikini bottom. Her flesh was so delicate, so tenderly heated and racing, with passion. His thumbs found the top of her bikini, and slowly he rolled her wet panties over her moistened cunt mound, down her thighs and over her feet, so that now her entire beautiful body lay naked on top of him.
His hands returned, to her torso, and his fingertips soon found the clump of thick pussy hair that covered her plump cunt. He played in her furry muff for a minute, twisting his fingers in her silken blonde tuft of hair. Billy had seen other cunts, but Robin's was the most beautiful and inviting he'd ever seen – the tender skin of her luscious twat rising softly from her lower belly, her thin thighs framing her sweet snatch. She felt her clitoris harden and stand up as he neared her puffy slit. His fingers inched closer to her gash, folding back the first layer of lips as he neared her clit.
Robin arched her thighs a bit as he found her bud, stiff and anxious to be fondled. And as he touched the hard little bean, the center of her passion, he could feel her juices bubbling deep within her cunt. The moisture poured out from her heated hole as his loving touch affected every vibrant nerve in her body. She was moaning in delight now, moving her hips from one side to the other, so that his finger might move up and down her erect tilt.
Now Billy was craving to be eaten up by her luscious snatch. He felt her hands lose control as they slid down his belly, stopping on his trunks.
'Take them off!' he demanded, and immediately she reached into his swollen trunks and pulled them over his rod. His gigantic prick popped up before her, pointing in her face, jumping free from the hunks as if escaping from a lifetime of bondage. She slid his trunks down just far enough so that she could cup his balls in her palms. She held his balls for a minute, just looking at his stiff cock that was arching into her face.
Billy looked up into his sister's eyes, and he watched her a minute as she licked the corners of her mouth, anxious to taste him, and feel his dick inside her cunt, the desire pouring out of her lovely body. Billy had never seen his cock so big before, and it throbbed and pounded in her hand.
'It's so big! It's so big!' she cried, inching her cunt closer to his enormous rod. She ached with the need to feel his shaft inside her throbbing pussy, her juices flowing onto her lovely tuft of hair.
'Fuck me, big brother! Fuck me hard!' And she moved her throbbing cunt up to his prick. A burst of energy shot through her as the head of his huge red cock touched the center of her gash. She wanted to swallow his swollen cock right into her hole, but he wasn't quite ready. He wanted to give her some of her own medicine. As she arched her thighs to suck his dick in, he moved back a bit.
'Not yet,' he told her, and he took his magnificent shaft by the base and tickled her clitoris again. The knob throbbed in ecstasy as he pushed the swollen tool against it, under it, then out again, leaving her desperate for more. She wanted to feel his meat deep inside her twat, and she wanted it now.
'Oh, Billy, fuck me! Please fuck me!' she begged, and he could see her gasping for breath as he teased her sensitive clitoris again and again. And now his other hand found her tender bung again, but here, too, he teased