Alexis pressed her hips back up into her brother's body as he thrust forward into her depths. His cock was at full strength again and its length fulfilled an indefinable need. Alexis had always heard size mattered, but she was able to truly appreciate the wonders of a large penis beneath her brother. Its length was perfect for sliding fully into her and stretching her pussy, just beyond the limits of comfort. But as it evacuated its post an onrushing sweep of pleasure would storm through her body before it hammered home again. Time seemed to stand still for her as the wide head of his dick stroked in and out, allowing her to savor the multitude of sensory experiences that came with passionate sex. The sounds of his breathing mixing with her own, lacing over the undertone of the wet slap of her pussy against his balls blended into the scents of their sweats and sexual release.
She studied the straining face poised over her body as Ryan sought to control the timing of his release. His pace was urgent and frenetic, hoping to get her to cum before he succumbed to his own excitement. The short fast thrusts were perfect to hit her G-spot and her clitoris, and she quickly found her body twisting back beneath him, trapped on his intruding rod. Her orgasm was swift and powerful and her pussy flooded their joining with fluid.
At the sound of her loud cry of release, Ryan lost control of his ability to keep from cumming. His cock once again leapt to life inside of his sister's pussy and he rammed home once more, his semen shooting forth into the hollow of her womb. A seemingly endless flow jumped to her depths and filled Alexis with an indescribable warmth. Ryan's arms folded beneath him and his weight came pressing down onto her body. Alexis stared up at her brother as he panted to catch his breath. Her arms cradled him in a firm embrace, knowing that if she released him some semblance of guilt would return. But with his penis's heat still filling her, and her own orgasm just beginning to fade, all she could think about was how much she loved these moments with her brother, and how fully satisfied she felt afterwards.
This recent round of screwing had begun simply enough. Ryan had taken her to a small hostel off the main square to administer her injection. But being around her naked had its toll and he quickly found himself fighting to restrain the urge to take her again. He had failed to a certain extent- the soft stroking of his fingers over her naked backside and the gentle dip between her thighs of another had caused Alexis to respond positively. With the injection done she had rolled over, her young breasts filling her brother's field of vision, and had slid into his lap. The press of his erection through his shorts had been enough to encourage her on and to cause her to forget the societal taboo their love betrayed. Her hands had worked quickly to free him of his imprisonment, drawn on by the need of her pussy's crush against him. The sex had started urgently and gradually slowed to a steady caress until need had once again driven them on.
The brother and sister were quite happy with themselves for now. Both were still blissfully unaware that her regular injections included powerful aphrodisiacs and chemicals which suppressed inhibitions. Perhaps even if they had known they would not have cared.
Across the island, in an ancient ceremonial site, Allyson and Sandra strolled. They had missed the entirety of the fertility and harvest rites as they had plunged deeper into the undergrowth, only to emerge hours later in this sacred primal site. Both women had removed their tops in the safe anonymity of the green foliage, sweat completely drenching their shirts and causing the collars to chafe uncomfortably. Sandra had been a little surprised at first to find that Allyson wore no bra or bikini top beneath her shirt, but had quickly grown accustomed to the full breasts that peaked the other woman's torso. After a good forty five minutes of hiking that way, she had also removed her bra, finding the sensation of her bare breasts being caressed by the indiscriminate hand of an ocean breeze quite refreshing. Allyson had teased her a bit at first about overcoming her soccer mom mentality and her conservative background but had given up when Sandra did not respond.
The two women found their conversations to be quite lively, coming from such differing viewpoints. Allyson tip-toed a fine line of truth and falsehood as she sought to maintain her persona of a small business owner and captain of the yacht. But she still had some distinctively liberal ideas which were unique to the middle-class mother of two. Allyson always argued from a very intelligent and informed viewpoint and Sandra found herself appreciating the flawlessness of the woman's mind. When they arrived at the ceremonial site, she was surprised to find herself breathless.
The ancient society which had built up the site had obviously done so with brute human strength, moving large stones and statues many hundreds of feet up the steep jungle hillside. The carvings were immaculate, and despite their age, seemed to be fully legible. Much of the undergrowth had avoided intruding upon this site, it seemed to stand back, wary of encroaching on some god's territory. At the center of a large ring of heavy stones sat a small four foot wide pool that was roughly two and half feet deep. Allyson told her guest that the site held a spiritual significance important for ritual cleansing. The people would annually send a virgin up the hill side to be taken by the shaman in the pool. The union would take place after the first large rainfall filled the basin in springtime. The natural water would act as a cleansing for the people so that they would not suffer during the coming year from crimes or sins against the gods.
Sandra was a bit surprised that at the culmination of this little history lesson, Allyson removed the rest of her clothing as if nothing was wrong in the world. Again, the guide and captain had neglected to wear underclothing and her body stood gloriously naked before it slipped into the shallow pool. Once again, there was a gently teasing smirk from Allyson, as Sandra visibly struggled as to whether she would join her partner in the small pool. With a mental, what the hell, Sandra removed her hiking boots and socks and pulled her cargo shorts down her tanned sweaty legs. She stepped free of them and approached the pool, her bikini bottoms still firmly in place between her legs and over her waist. Allyson's smile did not flee at this sudden act of boldness, but she obligingly slipped to a side of the pool so that Sandra could lay out similarly.
Atop the mountain side, the sun beating down on the cool rain filled basin, the women discussed more of what life had taught them. The conversation had turned at some point to Sandra's husband and his absence from the family. The divorce had been messy and had related to differences in sexual opinion. Ryan and Alexis' father had desired to have a very liberal and experimental sex life with his wife. He had managed to get her to allow them film their sexual encounters. Then he had tried to pressure her into sleeping with some of his guy friends while he filmed. Sandra had firmly refused, but had become aware that some of his poker buddies had seen the tapes.