Suddenly Donna felt her cunt churning, and she knew she was coming. Shrieking, she pumped her ass down and took as much of her young brother's dick as possible into her throbbing cunt.
"Coming Bobby! Ungghhh! Oh fuck it, oh you fucker!"
The spasms poured violently through her pussy, forcing her cunt to clamp around Bobby's dick, literally sucking the jism out of his balls. Bobby cried out as the incredible tingling stiffness of coming flowed through his enormous, twitching cock.
The second load of cum gushed through his prick and squirted out of the swollen, purplish knob, as profuse as the first load he'd dropped in her mouth. Bobby winced and shook his head helplessly on the sweat-stained pillow. Spurt after spurt of jism flooded from his throbbing cock, until his balls had no more cum to give to his sister.
Donna cried like a baby as she felt the gushers of jism shooting into her pussy, deluging her cunt with cream. There was no denying the ecstasy and satisfaction she felt. She'd fucked her younger brother, the one thing Roy had told her never to do, and already she couldn't wait to give him her pussy again.
CHAPTER ELEVEN
But after their fuck session was over, Donna felt guilty about her desires. Incest was wrong. Bobby had to learn the pleasure his enormous dick could give to girls his own age. Donna vowed adamantly never to touch his cock again.
But it was a difficult promise to keep. His big sister had popped his cherry, and for the duration of his visit Bobby was after her for another fuck day and night.
He tried to crawl into bed with her after Roy left for work in the mornings, and when she was trying to catch up on her housework he would try to dry-hump her in the afternoons. Sometimes it didn't even bother him that his sister's husband was round. Several times Donna had to push away an overly-fresh hand creeping up her thigh while they were at the dinner table.
Bobby quickly gathered how much his sister was excited by his ten inch cock, and he proudly showed her his stiffened manhood every chance he got. Donna would turn a corner and find him naked in the middle of the hallway, groaning as his pistoning fist jacked off his dick. Once, when she decided to take an afternoon nap, she discovered that he'd beat his meat and creamed all over her sheets.
These innocent attempts at seduction quickly took their toll on her willpower. If Donna had been an unusually horny girl before, now she was like a bitch in heat. Every time Bobby made a pass at her, and she refused him, she would have to run off and finger-fuck her pussy to one shuddering climax after another.
His gigantic dick was constantly on her mind. Donna had never seen a cock as large as her brother's, and in spite of herself she longed to see, feel, fuck and suck it. Every daydream she had was filled with images of Bobby's stiff, spurting hard-on.
In turn she unconsciously wore more revealing clothes when he was around. There was a certain sadistic pleasure in watching her kid brother drool as her big tits jiggled under a sweater without a bra, or seeing his crotch bulge as her long legs flashed under a miniskirt before his hungry eyes.
Finally, only a few days after their first, torrid fuck session, the mutual desire between brother and sister reached a boiling point. Bobby had been parading around the house with a hard-on all day. A little after noon, Donna realized she had to go into the bathroom and jerk off.
"Come on, let me take a shower with you!" Bobby pleaded, following her as she rushed down the hallway. "It wouldn't hurt anything!"
"Forget it, buster." Donna stepped into the bathroom, then shut and locked the door behind her.
"I know what you're gonna do in there!" Bobby yelled angrily through the door. "You're gonna beat your meat! I make you horny and you know it!"
"No I am not!" Donna lied. "And it doesn't matter if you make me horny! You're my brother! I can't fuck with you again. I should never have… it's sinful. Besides, my husband would kill us both if he found out! So leave me alone!"
Bobby grumbled a few choice obscenities and walked away. Donna waited until she heard his footsteps on the stairs. Then she turned on the shower and stripped off her clothes as fast as she could.
She was horny, incredibly horny, practically burning up with her need for a good, stiff fuck. Donna kneaded her big tits as she bared them, whimpering as the nipples stiffened under her palms. Her cunt was so wet that her pussy hairs were stuck to her panties. Donna ripped them off and sighed as she felt the tingling pulsations in the inflamed lips of her cunt.
The shower water was warm now. Donna stepped into the stall and kicked the door shut. Leaning against the tiled wall, she spread her legs wide and mewled with satisfaction as her fingers pushed through her glistening pussy curls, diving into the sopping slit of her cunt.
Fuck me, Bobby, she thought as she began to jack off her pussy, darting her fingers into her cunt as she rubbed her clit with her thumb. Her asscheeks contracted, imitating the humping motions of fucking. Her mind was filled with images of her brother's thrusting, spurting cock.
Your big, hard dick, Bobby, oh yes… going into me now… in my juicy little cunt. Doesn't it feel good, Bobby? Don't I have a nice, tight little pussy? You can fuck me now, Bobby. Yes, I've given up. I can't resist your big cock any longer. You can fuck me just as long as you like…
The shower stall door flew open. Donna was too horny to take her fingers from her cunt. Her eyes bulged as her now-naked brother joined her under the spray, with his ten inch prick bobbing stiffly before him.
"I knew you were in here beating meat," Bobby said. "Too bad you forgot I had a key to the bathroom door. Or maybe you forgot on purpose, if you know what I mean."
Bobby pressed close to her before she could react, wrapping his hands around her enormous tits, thrusting his hips forward so that his drooling, jerking dick head pushed onto the hairy triangle of her cunt. Donna gasped as she realized that he was trying to fuck her standing up.
"No, Bobby!" she cried, making a feeble effort to get away from him. "God damn you, you know you shouldn't have come in here! Oh God, why can't you just leave me alone?"
But Bobby had caught her at her horniest moment, and both of them knew it. Giggling confidently, the boy lowered his head to her ample cleavage and began to suck her tits, gluing his lips to her large, dusky pink nipples. Donna grunted and shamefully squeezed her thighs together to rub her cunt.
"Yeah, you want to get laid, all right. You want it and you know it." Bobby released her tits and slid slowly to his knees, planting wet kisses on her belly. "And this time I'm going to make sure you're too horny to do anything about it."
"No, Bobby." But Donna's words were without meaning as she fought the pulsing heat growing in her cunt. "Unghh! Please don't… oh no… noooooo!"
With her cunt triangle only inches from his face, Bobby knelt on the tiled floor of the stall. His hands moved up his sister's soft thighs and clenched the peach-shaped cheeks of her plump ass. Then he bent his head and started licking her pussy, running his tongue up and down the bright pinkness of her slit.
"Ungghh, oh Bobby, unggghhh…" In spite of herself Donna moved her feet farther apart on the floor, spreading her legs so he could go to work on her cunt. "It's incest, it's wrong, oh noooo…"
"It tastes good, sis," Bobby groaned. "I never ate out a cunt before. Shit, I could suck on your pussy all day."
Repeatedly he rolled and kneaded her creamy-white asscheeks, making her asshole pucker as the heat throbbed through her cunt. Bobby ground his face all over her hairy pussy, staining his cheeks with her musky fuck juices. He extended his tongue and lapped her cunt like a hungry animal, thrusting it deep inside her aching fuck tunnel.