Linda teased him up close to an orgasm time after time, and then let him slip slowly back, only to bring him closer and closer again.
"Please, Linda," he moaned when she released his cock again. "Oh, God, don't stop, keep pumpin', I'm almost there!"
Standing at the top of the stairs, Bobby was so excited that he reached through the opening in the front of his pants and began rubbing his stiff dick.
"What are you doing?" giggled his sister.
"Shut up!" he hissed, quickly removing his hand.
"Have you got a hard-on?" she teased.
"Of course," he admitted.
"Why?"
"Shit, Betty," the excited boy panted. "Imagine being jacked off by a girl. Wow, wouldn't that feel neat!"
Betty didn't answer.
Writhing around on the couch, Scott was almost beside himself with the pleasure he was receiving from her thrilling hands. Linda had dropped to the floor in front of the touch as Scott faced her with his knees pulled up and his feet resting on the front edge of the cushion. Kneeling in front of him, the girl was staring at his big lusty balls, lewdly exposed between his widely spread thighs. The thick growth of red hair around his nut-sac seemed very erotic to Linda.
Still stroking his throbbing rod with one hand, Linda suddenly thrust her free hand beneath his balls. Cupping the sensitive underside of his big bloated sac, she began gently massaging his nuts.
"Oh, Christ!" he roared with delight, "That's it, baby! Christ, does that feel good!"
"I'm glad," she whispered, trailing her fingers lightly through the swirls of red hair that covered his crotch.
Suddenly she saw the puckered ring of his asshole just beneath his bloated balls. In her wild state of excitation, she had a wild desire to penetrate the hole with her finger. Continuing to deliciously stroke his cock with her other hand, Linda began teasing and probing the ring of his shitter.
"Oh, Christ!" he moaned when he felt her teasing the sensitive nerves around his bung. "Jesus that feels good."
"Do you really like it?" she giggled, pushing the very tip of her finger against his shitter.
"Oh, sweet fuckin' Jesus," he shouted. "Shove it in! Ram it up my asshole."
"Oh, you naughty boy," she giggled. "Here it comes."
"Wowwww!" he roared when Linda gave a mighty thrust and drove the entire length of her finger up deep into his rectum. "Holy Christ, is that good!"
Bobby almost blew his mind when he saw what his older sister was doing to her boy friend.
"Jeez," Bobby panted. "She stuck her finger up his shitter!"
"And look at the way she's jacking him off," gaped Betty. "Shit, he's sure gonna shoot off a wild load!"
As Linda's hand moved more rapidly up and down his cock, her finger twisted deliciously around in his bung, making his body lurch wildly around on the couch. Crazed with the excitement, Linda could feel her own hot juices oozing from her twat and dripping down her bare thighs. Faster and faster she pumped his prick while he lurched and writhed all over the couch.
"Oh. sweet shit!" he roared as his cockhead exploded, spurting hot jizz all over Linda, himself and the floor.
"Jeez," gasped Bobby. "I wish she'd jack me off."
"Bobby," his twin sister whispered, her own slit aflame with desire. "If you want to come into my bedroom I'll do some neat things to your cock."
"Will you jack me off?" he eagerly asked.
"Better than that," she giggled.
"What's better than jacking off?"
"You'll see," she smiled, reaching down and rubbing his stiff prick through the material of his pajamas. "Just come with me."
CHAPTER FOUR
Watching Scott and their big sister on the couch had really turned the twins on. Betty always thought of Bobby as a dumb nuisance, but right now she realized he had a stiff prick, and that's what she wanted to play with.
"What's better than jacking off?" the boy asked a Betty closed the door behind them in her room.
"Lots of things," she giggled, noticing how his dick was pushing out against the front of his pajamas.
Bobby stood staring at the teen as she sat down on the edge of the bed and took of her pajama top.
"Do you like my titties?" Betty whispered, lifting her hard nubs with her fingers.
"God, yes," he gasped, staring at her huge swollen nipples, he nabbed his hard boner through his pajamas. "They're neat."
Reaching for his hand, she drew him over next to her on the bed.
"Sit down by me," Betty suggested.
The girl had never been so hot in her entire life. She hadn't been alone with her dad since the night he ate her pussy and taught her to suck him off, but it was constantly on the teen's mind. She waited every night for him to come to her room so she could taste his creamy cock juice again, but he hadn't returned. Watching her older sister playing with Scott's big thick dong had added fuel to her already raging fire. She hadn't thought of her brother as a sex-mate until he got a hard-on tonight. It was probably just a dinky dick, but seeing it poking the front of his pajamas out had really turned on the horny girl.
"Bobby," she smiled as he sat beside her, "have you ever fooled around with girls?"
"Nope."
"DO you like my titties?" Betty asked.
"Then show me," she whispered. "Feel my tits, and pet them."
She smiled tenderly at her twin brother as be nervously reached out. Betty could feel a spurt of hot twat-juice dripping out between her legs when his fingers drew closer.
"Oooooooh, Bobby," she giggled nervously when his hand covered her hard tit. "That feels neat."
An exciting fire tingled through her entire body when he placed his second hand over her other boob and began slowly squeezing it. Betty moaned softly as he caressed her naked flesh. She felt his fingers playing with the soft underside of her tits, and then sliding up the firm mounds toward her big throbbing nipples. When his fingers brushed over the hard buds, her nipples seemed to pop up a half inch above her tits.
"Oh, shit, Bobby!" she gasped. "That feels good."
"Does it?" he inked, gently squeezing and running her deliciously hard nipples between his fingers.
"Oh, yes, honey," she whispered. "Why don't you kiss them for me?"
"May I?"
"Shit, yes," giggled Betty, another jolt of pussy juice squirting out from between her legs. "Girls love to have boys suck and lick their titties."
"No shit?"
She smiled and nodded to her excited brother. When his hot mouth went down over her quivering tit, the girl's entire body seemed to explode with ecstasy. Wherever his lips touched, it seemed to leave a burning fire on her naked flesh.
His mouth and tongue were working under the soft swell of her boob, working slowly up toward her big bursting nipple, making her gasp with the intense pleasure she was feeling. She hadn't dreamed that her dumb brother could make her tits tingle so deliciously. Writhing with delight, Betty opened her eyes to watch him. His mouth and tongue were working slowly higher, and when his lips touched her nipple, Betty had a faint mini-climax. It startled her when she felt a sharp jolt from her clit sending a wild tremor through her body as she watched him suck her nipple into his mouth.
"Oh, Bobby!" she squealed with delight, grabbing the back of his head and pulling his mouth tighter over her quivering boob. "It feels so good!"