Even the sight of his sister skinny dipping under a star-encrusted sky wasn't enough to rouse Cain from his mat as he chewed on dried meat popsicles and downed as much fresh water as his stomach could handle.
As Ellie slipped her naked body deeper into the waters, Cain slipped into a dreamless sleep.
Cain was woken by something stroking his cock. "Ooooh, Ellie!" he hissed, thinking what a wonderful start to the day his sister was giving him. Only as other, less primal parts of Cain's mind started to surface into something approaching consciousness did he realise that Ellie was snoring lightly on the sleeping mat next to him. He peered down and found himself looking into a pair of soft brown eyes. A light blue shawl was drawn across the woman's face, so only her shaped eyebrows and the bridge of her nose were visible. She had used some kind of soot to apply a shadow around her eyes and the effect was spectacular in the half-light of the early morning.
The stranger's eyes flicked across to the slumbering form of Ellie and the woman extended a finger over her hidden lips as Cain thought about raising the alarm.
Instead, another part of his body was raised. The woman's hand circled Cain's cock, pulling it into life. Cain couldn't help but admire his own manhood; as the pink and purple head engorged with enough blood to make it shiny, Cain knew that he had given the woman a pleasant surprise.
Her pretty eyes gazed at his manhood even as she kissed Cain's exposed scrotum through her veil. Cain was sure that the woman was beautiful; the dark pools of her eyes were enough to swallow him. She trailed kisses up the length of Cain's cock, from the soft warm skin of his scrotum to the very tip of his erection. To Cain's surprise she kept moving up.
Her whole body slid over him, her shoulders and hips swaying to unheard music. Cain had a flash of bare flesh under the heavy robes. The woman had a slender, muscular body, strengthened by endless days roaming around the hard desert. "I need something from you," she whispered huskily, as something soft and wet touched the end of Cain's cock.
Cain looked around, expecting to see Ellie wide awake and angry but she was slumbering peacefully. "I need your seed." The woman chewed her lip, as though she had said more than she had intended and was now punishing herself.
"My seed?" Cain croaked.
"We have the same problem, you and I. Bloodlines. Your sister there... it would perhaps be better if you didn't father her child." Cain wasn't fussy when it came down to it. Any woman was fair game as far as he was concerned – after all, it wasn't as if God had given him much choice when it came to finding a mate.
"Who are you?"
"You and your kind would call me one of 'The Others', although we too are God's children." Cain really didn't care. The only thing which might stop him from having sex with this woman was currently twitching her way through a dream.
Cain stopped asking questions and simply accepted that he was lying on his back in the middle of the desert with a beautiful woman running her wet slit along the length of his cock. She somehow teased Cain's cock away from his body and he tensed in anticipation of what it would feel like as she took him inside her.
She didn't use her hands to guide him; instead she skilfully guided his cock through her slick opening with subtle undulations of her hips. The woman didn't seem to be doing anything but Cain found himself basking in the slippery luxury of being buried inside a woman's body. It was deliciously tight and he had a satisfying sense of filling her.
She made no effort to resist as Cain slid his hands under her desert robes and followed her smooth skin all the way up to the point where her bony hips jutted out. Cain gripped and pulled his hands down as he eased his hips up.
The woman sighed and the way her eyes rolled up into her skull made Cain groan with his own satisfaction. So this was sex. It was a welcome splash of colour in Cain's world of black and white.
The undulating movement of the woman's hips took on more meaning. Cain could feel the contours of her velvety pussy changing as her muscles tightened and flexed.
It was gentle but consistent and insistent. There was no question in Cain's mind that this woman knew what she was doing. She was going to take his seed from him and as he reached a state of advanced arousal, he was happy to let that happen. He hadn't had to thrust his hips once. She had done all the work. It made Cain feel cherished and appreciated for the first time in his life. He stared at the mysterious woman who could make him feel cherished out here in the middle of the desert, wondering who she was and how he was going to find her again.
Cain wanted to resist the approaching ecstasy for he knew that it would quickly fade and as it did, the mirage would fade just as rapidly. The woman let out a whimper. Cain hadn't considered that she was pushing towards her own fulfilment. He could see movement under her robe and knew that she was playing with her breast, or perhaps just a nipple.
She seemed to demand movement from his inert body and Cain found that it helped to stave off his own pleasure to concentrate on lifting his hips in sync with the way she was riding him. Her groaning thrusts quickened and her excitement mounted to the point where she seemed to be throwing her body at his, slamming it down. She stopped with another simple whimper but Cain was privy to the tumultuous riot of spasming muscles and tightening tendons which were ripping and pulling under the robes.
Cain was drawn up into her sexual storm and his pleasure burst inside her. Her muscles seemed to milk him as they pulsed in perfect harmony with his own throbbing need. "I think I've got what I came for," the woman said, disconnecting herself from Cain's slick cock. She paused, her leaking pussy hovering over Cain's crotch. "Are you planning on staying out in the desert?"
"I guess?" Cain replied.
"It's just that my sisters are in a similar position to me..." Even in his post-coital funk, Cain thought the edges of the woman's eyes were betraying a conspiratorial smirk under the face covering.
"You mean?" Cain looked over at Ellie then gazed up at the woman.
"Don't worry about her. I gave her a little something to help her sleep when I arrived." The woman gave an apologetic shrug. "So are you up for a little bouncy, bouncy with my sisters?" Cain tried to imagine endless nights of sex with a steady stream of sisters appearing out of the darkness, demanding to take his sperm into their bodies. It proved to be beyond his wildest imaginings.
"If you think it's important," Cain said, "I'd be glad to help." There was another of the conspiratorial smirks.
"I'll bet!"
Cain found himself feeling strangely uncomfortable as he lay back and looked up as the brightening sky. He'd always been told that sin was to be punished, not rewarded.
