Before their mother returned Kathy and Phillip engaged in sex, in one form another, several times. Almost every encounter included Kathy begging her brother to ejaculate on her. Phillip was very willing to accommodate the insatiable girl. His load shooting into her face was her particular fixation, but she found ecstasy in the goo sprayed over her breasts as they heaved with the exertion of their carnal play; or, the white liquid dribbled onto her ass already slick with her secretions and their combined perspiration. Kathy fellated her brother, copulated with him in various positions and places in their home, with an abandon that she would have thought sluttish or deviant just a few days before. Phillip walked in on her shower, entered her room as she slept, even interrupted her cleaning the kitchen.
This activity completely ceased with their mother's arrival home Sunday night. The siblings had spent the warm afternoon in a frenzy of fucking and sucking while sprawled on cushions by the pool. It was as if they were looking forward to a dry spell and were building up a reserve. They greeted their mother with sincere joy upon picking her up at the church. She was saying her goodbyes as they approached and they overheard Mrs. Young tell her, "Now Joan, you must plan on going with us on our next trip. I'll be in touch with the details when we have them."
"We'll see, Liz. It was fun...I'm sure I'll be able to find the time. Thanks so much for inviting me." Joan replied. The two women embraced and Joan turned to her children. "Ready to go?" she asked,
"I've got your stuff in car, Mom. We're ready." Phillip answered. They got into the car and started home.
She cheerfully recounted some of her experiences to her children as they drove home, laughing at some points. Phillip and his sister let their weekend of lust fade into their joy at seeing their mother in such high spirits. They were further distracted by a flurry of goings-on as the evening progressed; helping with unpacking, getting their mother settled, and preparing and sharing dinner. After such a full day all concerned retired to bed early and were slumbering peacefully straight away.
Monday, Tuesday and Wednesday were filled with a smattering of the usual. Kathy and her brother were occupied with various errands and interactions with friends that kept them from any real time together. The addition of a third party at home was another issue that impeded their connecting in any way other than the norm. That this third party was their mother truly heightened the sibling's sense of disquiet. A shared smile at breakfast or a gentle caress while passing through a room was all that they dared. It was enough, though, to let each of them know that it was simply a matter of time. Thursday morning Phillip had slept late. Upon rising he showered and shaved and went into the kitchen to find Kathy washing dishes.
"Good morning, Kath."
She looked over her shoulder and smiled. "Good morning."
Phillip approached his sister and embraced her around the waist, kissing her neck softly.
"Phillip!" she exclaimed. "Mom is home!"
Kathy motioned with her head out the window over the sink and Phillip looked out. The house was slightly above ground level so the pool area was completely visible from the kitchen window. Their mother was laying in a lounge by the pool, her oily body shining in the morning sun. Her pale yellow two-piece was conservative but still revealing and contrasted nicely with her tan skin. Phillip pressed his body against Kathy's, his groin contacting the firm spheres of her ass.
"Phillip! Don't!" she protested.
"C'mon, Kath. You know she can't see into this window. She won't know a thing." He slid his hand under her pastel blue tank top and gently cupped a breast.
Kathy closed her eyes. "Oh, god." She breathed.
Her brother pushed his other hand past the waistband of her shorts and, since Kathy had opted not to wear panties, his fingers came into direct contact with the spongy folds of her pussy. Now kissing her neck again he moved his fingers in a circular motion over Kathy's clit. Her immediate response was to shove her hips back so that Phillip's stiffening cock became lodged in the crack of her ass. With the friction on her clit and the pressure of her brother's thick meat grinding against her anus Kathy sensed her pussy start to ooze. Phillip's fingers found an erect nipple and he squeezed it with a slight twisting motion.
"Do it." Kathy moaned.
"Do what?" teased her brother as he moved a finger past her clit and pushed it between her wet labia.
"Fuck me!" she hissed as her hips writhed under the manipulation of his finger. Phillip had nurtured this part of his sister's sexual expressiveness. Her penchant for vulgar and graphic words when excited aroused him and seemed to propel her anticipation before, and delight during, their carnal interaction.
Abruptly, Phillip stopped his diddling and pulled his sister's shorts past her hips and to the floor. Placing his right hand on her shoulder he bent her at the waist and, reaching into his shorts, took his erect cock in his left hand. Phillip stroked Kathy's dripping cunt lips with the head of his dick making it shiny with her juices.
"Little brother's gonna give it to ya." He growled and moved his hips making the rigid rod slide into Kathy's warm sheath in a slow steady motion.
The girl grunted as she felt the intruding member stretch her hole and fill her slick pussy. Bracing herself with her hands on the sink, Kathy forced her hips back so that Phillip's cock would be completely buried into her body. Her brother initiated a thrusting motion so that the full length of his cock moved in and out of Kathy's pussy. The warm wetness of his sister's hungry hole surrounded Phillip's penis and energized his desire. As he hammered his meat into his sister, the boy looked out to make sure their mother was still sunbathing. She was still in the lounge but she had drawn her knees up with her feet flat on the lounge. Phillip now noticed that her bikini bottoms were pressing tightly against her groin. Even at this distance the boy could clearly see the garment stuck in the deep crevice of his mother's cunt. "God, that is sick." He thought, but the image brought his arousal to a fever pitch and the thrusting of his hips increased to a punishing pace. Kathy felt that she could climax soon, her body being impaled by her brother with a ferocity that was new. She was grunting with pleasure with each stroke and trying to form the words to direct Phillip to give her more. In her orgasmic fog she was incoherent and uncoordinated as well. Her hand slipped and her upper body fell against the sink with part of her torso ending up in the dishwater. Kathy was beyond caring about such details as her body quivered with the passion of her lust. Phillip could hear his sister's guttural utterances but they made no sense; his attention was riveted on the flood of her climax down his thick shaft and the vision of his mother's reclining form. At the peak of Phillip's exertion his mother reached down to adjust her bikini. The boy's eyes widened as he watched her slide her fingers along the crotch of the garment to smooth it out. In doing so she inadvertently altered the fit so that the chubby outer lips of her pussy were exposed, white in contrast to her tan thighs. It was too much. Phillip withdrew his penis from his sister's clinching slit and jacked it violently spewing his semen over the small of her back and across the milky white skin of her ass. Still shaking from her effort, Kathy squealed softly as each mass of her brother's cum struck her body. Gasping for breath, Phillip picked up the dish towel and wiped the white liquid from his sister. He pulled her shorts up to cover her nakedness and left the kitchen. Kathy realized that the front of her tank top was drenched with dishwater and she absently daubed it with the towel, but not before some of it streamed onto her shorts. She was still trying to catch her breath when her mother entered through the kitchen door.
"What happened, child?" Joan asked her daughter, noticing the wet garment.
