Jack parked his bicycle on the back porch of the house he shared with his sister, Janie, after spending most of the evening working on a term paper at the campus library.
After two years of junior college, Jack was getting the hang of life at a big university. But the work was a lot more than he'd experienced at junior college, and that hadn't left much time for a social life. Still, he was looking forward to kicking back with a cold beer and a hot doobie with his sister, who was a year ahead of him at school.
After locking his bike to the fence, Jack decided to peek in the big window of the large den just a second before going into the house. He wanted to be sure he wasn't interrupting anything. When he did, he saw a sight that stopped him dead in his tracks. There in the den was Janie, standing naked with one foot propped on the armrest of the sofa to allow her friend Alicia access to her crotch. Alicia was a curvy brunette with thick, curly hair that cascaded over her shoulders, and a healthy set of tits that Jack had been having major fantasies over.
Alicia was on her knees with her face buried in Janie's pussy, which Jack noted with delight was smooth-shaven. Janie had her head thrown back in ecstasy as Alicia licked and kissed her hot cunt. Jack noted, as well, that his sister wasn't real busty, but what she had she wore well, with a pair of button-sized nipples that jutted out from her chest. In contrast to Alicia, Janie was tall and lean with her blonde hair cut in a very short, spiky cut, a little bit longer than a crew cut, but not much. Despite the dykey look of her haircut, Jack had always thought his sister was very sexy, and now he really thought she looked sexy, even though it appeared that she was an active lesbian.
In fact, Janie wasn't lesbian exactly, but aggressively bisexual. She simply loved sex, with anyone, any time, and virtually any place. She and Alicia had been having a casual sexual relationship for a couple of years, but that didn't stop either of them from making it with others of both genders.
As her lover ate her pussy, Janie ran her hands down her body in a sensual motion, then wrapped her hands in Alicia's full head of hair. She rolled her hips to allow Alicia to tongue every part of her dripping wet pussy and clit. She had heard her brother outside as he'd pulled up to the house, and she smiled as she thought of him watching. It gave her a rush to think of Jack watching her have sex with another girl. She had been planning this for some time, and now her plans were coming to fruit.
Alicia was too engrossed in eating her girlfriend's pussy to hear, or care, what was going on outside. She loved the taste of Janie's hot twat and never missed an opportunity to indulge in eating it. Pulling her mouth away, Alicia brought one of her fat nipples up to the shining wet cunt and rubbed it all over Janie's clit, while Janie moaned in approval. "Lick my ass, baby; you know how much I like it," Janie said. So Alicia crawled between Janie's legs, lifted her head and ran her tongue all over the pink puckered hole, then pressed a finger to Janie's ass and slowly fucked her with it.
Jack watched wide-eyed as his sister put on a show with her girlfriend. Watching the pornographic display had made his cock like iron, and he rubbed it through his shorts, wondering if he dared pull it out and masturbate. It had been way too long since he'd gotten laid and his body got the best of him. Quietly, he unzipped his pants and fished his large, throbbing boner out of his boxers and began to stroke it slowly.
Janie was about to climax as Alicia alternated licking her pussy and her ass, using her fingers in whichever hole her tongue wasn't licking. "Ah, ah, ah, I'm cumminggggg!" Janie exclaimed as she flooded Alicia's face with her juice. After shuddering with her orgasm for several minutes, Janie finally opened her eyes and pulled Alicia's face from her crotch. Jack thought the show was over, but instead, Janie pulled Alicia to her feet and kissed the shorter girl full on the lips, then licked her own cum off Alicia's face. "Now it's your turn," Janie said, and she sat Alicia down on the couch, pulled her legs apart and dove for the fiery pink pussy that lay open between them.
Unlike Janie's bald beaver, Alicia's cunt was framed by a carpet of thick black hair. Janie ran her fingers through the bush, then pulled apart Alicia's thick pussy lips, which opened for her like the petals of a flower. Alicia gasped as Janie ran her tongue all the way up her cunt lips to her protruding clit, which throbbed in desperate desire. Jane got her whole mouth over Alicia's pussy and began to suck vigorously over the hot, wet mound.
Jack tried to stifle his groans as he furiously pulled on his big fat cock. This was like something out of a porn movie, and he wanted to make it last. He wasn't worried about getting caught – except maybe by Janie – as the back patio was well hidden from view by a row of hedges that gave him plenty of privacy. Try as he might, however, he couldn't hold it back when Alicia threw her head back and came violently over Janie's mouth and slavering tongue. With a quiet groan, Jack shot a hard bolt of semen across the patio, followed by several more shots as he drained his nuts with his fist. He stood there trembling with requited lust for several minutes before worming his cock back into his pants.
"We'd better get dressed," Janie said. "My brother will be home soon and you wouldn't want him to catch us, now would you?" "Oh, I don't know; I can think of worse things that could happen," Alicia replied mischievously. "But you're right, I'd better go. I've got a 9 a.m. class tomorrow."
Janie pulled her tank top over her head and pulled on her cutoffs, grinning to herself as she thought about Jack standing there watching. "I wonder if he was beating off," she said to herself. And the mental picture of her good-looking brother with his big cock in his hands made her pussy start to juice up again. After seeing Alicia off with a big sloppy kiss, she retired to her bedroom where she went several rounds with her favorite dildo before drifting off to sleep.
Jack didn't mention what he'd seen and acted as if nothing had happened. But he was confused. Janie was gorgeous, very feminine in every respect, the short haircut notwithstanding, and she had always had lots of boyfriends. So why had she turned lesbian? Or had she? The thought gave him several nights of masturbatory pleasure over the next week or so. The truth is, he'd always had the hots for his sister, and had dreamed of fucking her sometime. But he was awfully shy, and Janie's looks and aggressive nature intimidated him somewhat. Nevertheless, he resolved to take advantage of the situation, even if he didn't fully understand what was going on.
Jack and Janie had always been close, even though they were very different. Jack was average sized, maybe 5-9, and bookish, with a rather quiet nature. Janie was tall, athletic and quite forward. She'd won an athletic scholarship to the university to play softball, which is quite a big deal in California, where they were in school. She'd lived in the dorm for three years, but when Jack transferred to her university from junior college, she'd found a small three-bedroom house to rent in a quiet neighborhood and had invited Jack to share it with her. She liked the security of having a man in the house, and her brother was the perfect roommate. Recent events had brought them even closer, what with their parents' divorce several years previously.
But Janie had another, secret, motive for inviting her brother to live with her. She had always suspected that he was very well hung, and her suspicions were confirmed two summers ago when she'd accidentally spied him out by the pool at their father's house, when Jack had thought he was home alone. He'd been swimming, then he'd lain back on the lounger to get some rays. After awhile, she'd watched him strip off his shorts, pour tanning oil on his cock and beat it off furiously in the hot sun, shooting a massive load all over his chest. She had frigged herself to a foaming orgasm as she watched him pull on his cock, which she guessed had to be upwards of 10 inches.
Ever since, she'd schemed to find a way to get that fat dong up her well-schooled pussy. But it was tough. Jack was pretty shy, although he had had two or three steady girlfriends over the years, and she was afraid to approach him directly for fear of scaring him off. However, living in the same house with the object of her desire was torture, so she had decided to weave a seductive pattern to draw him into her clutches. She figured that if she drove him nuts long enough with a visual display, he'd eventually come around.
A couple of weeks after watching his sister's encounter with Alicia, Jack informed Janie that he was going to the library to cram for an exam and would be back late. Janie took the opportunity to call a couple of hunky guys she knew who would be willing to engage in a little threesome. The trio was well into it by the time Jack slipped back to the house. His cock leapt in his pants as he watched his sister in action again, and he wasted no time in pulling it out of his shorts.