Kelly woke with a start, sitting straight up in her bed. It was still dark outside so she looked at the alarm clock: 5:15am. She quickly turned to her brother Mike, still gorgeously naked but half covered with the sheets, and nudged him hard. He stirred slightly but didn't wake up. She leaned down and spoke as loudly as possible in his ear without taking a chance of waking their parents or sister, "Mike, wake up!"
Finally he rolled over on his back and partially propped himself up with his arms. He looked over at Kelly and scanned the sight before him. Even in the morning Kelly looked stunning with perky, perfectly upturned breasts, and nipples as hard as rock. A wicked smile immediately appeared on Mike's face, but Kelly quickly shut it down. "We accidentally fell asleep last night. Mom, dad, and Jessie will be waking up in less than 15 minutes to get ready for work. You have to get back to your room now!"
He looked horribly disappointed as he pulled the sheets off and went to gather his sleep shorts. Kelly was disappointed too so she quickly added, "Tonight let's pick up where we left off." Mike was smiling again as he pulled on his sleep shorts over his hardening penis, quietly opened her bedroom door, and sneaked down the hall to his bedroom.
No one at breakfast would ever have been able to tell the two siblings had enjoyed passionate sex the previous night and awakened in bed together. Mike and Kelly were adept at hiding their three year old 'fling', even carrying on while the two of them dated others. Perhaps it was the excitement of their taboo activities, or more likely that they just knew how to make love to each other better. Nevertheless, their sexual adventure was not going to end any time soon. In fact, Kelly was seriously thinking of introducing Jessie to their liaisons, but was unsure whether Mike would be willing. So she had hatched a plan to seduce Jessie herself and then draw Mike into a three-way relationship by jealousy, lust, or both.
Both Mike and Kelly had gotten local jobs for the summer rather than far-flung college internships. Neither had decided what they wanted to major in yet at college, so internships seemed premature. Jessie had just graduated from high school and was entering college in the fall, but she decided to take the summer off and relax at home with her family and friends. She was once again sleeping late while the rest of the family ate breakfast and got ready for work. Their parents always left first, giving Mike and Kelly the chance to covertly fondle each other before heading off too. Despite being brief, Mike's massage of her nipples through her blouse would leave her pussy tingling and wet all day.
Today Kelly hung back, pretending to look for her keys while Mike drove off. In reality, she had already called in sick for the day, noiselessly returned to her bedroom with the door closed and stripped out of her work clothes. In silence she waited as her sister awakened around 8am, ate breakfast, and returned to her own bedroom. Kelly was hoping Jessie would do what she had done almost every day so far that summer: change into her bathing suit, spend the rest of the morning and lunch sunning by the pool, and get together with her friends in the afternoon.
She listened as her sister came back out of her bedroom, walked downstairs, and went out to the pool through the back sliding glass door. Kelly carefully peeked out her window at the pool and watched as Jessie situated herself on a lounge chair by the pool. She slathered sunscreen all over her slim, tan body, making her skin glisten as she rubbed in the lotion. She surprised Kelly when she removed her bikini top, applying the cream to her breasts while tweaking her nipples with her fingers. Apparently Jessie was much more sexual than Kelly had thought, and happy to take advantage of their remote country house on many acres. Jessie then also removed her bikini bottoms and rubbed the lotion on her bare bottom and around to her mound. To Kelly's delight, Jessie was shaved bare just like her.
"Oooh," Kelly audibly gasped. Suddenly the girl-on-girl, sister-on-sister fantasy part of her plan was coming into sight. Kelly couldn't help herself and had mindlessly slid her fingers down into her wet panties, lightly stroking her clit. She continued to watch her sister as Jessie lay down on the lounge chair on her back and closed her eyes. Kelly was holding back from penetrating herself with her fingers when she gasped again: Jessie had also started stroking her pussy, making her smooth, bald mound sparkle in the hot sun. With that, Kelly couldn't hold back. She began piercing her pussy hole with one and then two fingers. Her vagina was now almost gushing. She couldn't believe it -- she was wildly masturbating at the sight of her 18-year-old sister masturbating. But she realized she had to quickly stop or she would come. So she reluctantly pulled her hand out of her panties and stopped rubbing. She was aching to orgasm, but knew that an even more intense orgasm was possibly soon to come.
Kelly returned to her seduction plan, emboldened by Jessie's own erotic actions. She removed her panties and bra, and pulled on her own revealing bikini set. Her pussy was so wet, and the bathing suit so slim, the fabric just slipped into her lips and nearly disappeared. Her clit was sending shocks she had never experienced before. She slid her feet into a pair of her tallest, spikiest heels, descended the stairs, and strolled out to the pool with ultimate confidence. Jessie jumped when she heard the heel clicks on the patio, and tried to cover up but was too far from her towel.
Kelly quickly reassured her, "It's OK Jessie, relax, don't be alarmed. I'm here for the same reason."
But Jessie only seemed slightly reassured, as she tried reaching for her towel on the other lounge chair. Kelly moved in her way, placing the towel further out of reach. "Seriously Jessie, it's just us two girls. No judgement, just us two girls enjoying the hot, sunny weather."
With that she sat on the other lounger, giving Jessie a full view of her engulfed pussy lips and barely disguised rigid nipples. She reached over to Jessie, grasped the sunscreen tube and started rubbing the lotion onto her own body. Almost immediately, to equalize the situation with Jessie, she pulled her bikini straps off her shoulders and massaged the sunscreen into her breasts. She purposely squeezed her nipples and closed her eyes in sensual satisfaction. When she opened them again Jessie's mouth was agape and her eyes were focused on Kelly's breasts. Kelly knew Jessie wouldn't run -- quite the opposite. She was enraptured with her sexy older sister, with little resistance to what Kelly planned next.
"Don't let me interrupt," Kelly added. "I'll be happily savoring my day off in a few moments."