Masturbating readily now, Athena didn't notice the skin of her arm breaking as she moved her fingers in and out of her body, letting out small croaks of bliss as she did. With a dry cracking sound, her disturbingly dry skin broke apart, revealing a thin green tendril underneath. Slowly but unceasingly, it pushed upwards, seeming to grow out of her body. It twisted upwards, angling towards the sky, and thickening as it went. As the bliss-addled woman diddled herself with ever stiffening fingers, more and more of her skin broke, revealing tiny growths underneath waiting to escape. They began to reach out of her body, bending upwards towards the light. This was how the venom of the life stealer worked - once inside a host, it infected their cells, invading them and bearing their mutative DNA on them. As the cells were carried around, the DNA was passed on through the local area to more cells, spreading at first very slowly, then exponentially faster as it coursed through first airways, then veins and arteries, then the skin and nervous system themselves, until it was inside every cell. During the expansion process, the cells would accelerate whatever cells they joined to, encouraging them to work harder. In most victims, this led to increased heart rate, elevated breathing, intense sensitivity, and accelerated, if erratic thinking.
Sometime during the process, the cells began to slow down, more and more of them sticking together, until they formed clumps that could sustain themselves. They grew, and the cells would form a symbiotic seed host. The seed would root itself in the next place it found itself stopping, and bury tiny DNA strands into the wall of the host, growing itself into the body of the creature. Unlike other plants, which fought to share ground space with their neighbours, the life stealer plant merged with other seed cells until one network of new seeds was made all throughout the body of the host. Then at their strongest, the now single seed would expand, seeking out everything it would need to survive. It would suck exponential amounts of water out of the host as it grew, before reaching a size big enough to exit the host body. Once there it would break through the skin and sprout leafy flowers to drink in the sunlight while it used the remaining protein in the host to dig down until it rooted itself firmly into the ground. By then, the host would be almost gone, and the plant would move to sustaining itself fully off of the earth and the sun, flowering all year round, the heady scent of its blossoms attracting unweary hosts and infecting them, making them run until they fell, spreading the plant's seed further and further.
Athena's hand was slow now, stiff and hard to move, but she didn't care. She didn't know how to care. The roots were in her head, in her brain, numbing thought and silencing her resistance. Intelligent cognitive processing had ended when the stems of the infectious symbiont had grown into her mind, heightening her thinking before dragging it to almost a halt as it grew stronger. Athena was no longer consciously thinking. All that remained inside her was the strongest of her thoughts, the most powerful of sensations; her arousal. Numb and dull and completely unresisting, Athena's lolling head flopped back and her soft lips, dry and cracked as the water had been drained from her body, slowly parted, letting her small tongue loll. Empty, unfocussed eyes stared into the green not half an inch from them. Only the almost completely frozen motion of her fingers continued at her pussy, and even that was slowing rapidly.
With the last vestiges of humanity, Athena distantly realised that she was cumming. As though at the end of a long, long tunnel, she more heard than felt herself, as if she were watching herself from the outside. Indirectly, she realised she was, and in the strange calmness that takes over a person in death or during life threatening situations like surgeries or battles, she almost thought she was standing over herself. Looking down, she saw the cracked skin, the upturned green stems erupting from her body, and the arm buried in her pants. She could see herself under the clothes, see her body, and she felt herself cum. It was intense, blisteringly pleasure-filled, and she felt the numbed echoes of that intense orgasm shaking and echoing down to her distant consciousness. It made her happy, and made her satisfied. She knew she was in intense pleasure, more than she could comprehend, and in her detached self she appreciated what that meant. Without any discernible ending, she was gone, and so was the still form in the grass, the orgasm, and the plant that was now her.
Above the half petrified form of Athena, lying in the grass, flat on her back, a glazed, ever so slightly smiling look on her face, one arm rooted inside her pants, the first of the flowers of her new symbiotic life form sprouted, opening into bright, perfect flowers. They sprung wide, thick petals leaning back as far as they could go until they formed a cone of colour. Atop their peaks stood a thin, stiff stalk, covered in tiny pink buds. As soon as any creature big enough came near them, the warmth and pressure of their breath as they learned in to sniff the irresistible scent of the blooms would jettison thousands of tiny spores off the stalk, filling the air around it with them. They would stick to skin, float into water supplies, and be breathed back in by the creature, who would take them far away inside it before it too succumbed to the plant and formed a new rooting.
Hassu stopped running a few metres from the still form. He couldn't see her yet through the thick grass, but he could see the top of one of the flowers peeking over the top of the line of grass. He froze, not wanting to come any closer. The two friends he'd called to come with him to investigate whatever it was that he thought had fallen out here stopped behind him. They pointed, speaking to one another. No one moved for a few moments. As they talked, asking about the thing in the grass, but not game enough to go near it, a slight breeze picked up, making the grass wave and the trees shake gently. One of them pointed, tall enough to see the top of what had been Athena's head. The young man who'd first run up to them turned then and, pushing at his friends, started back towards their houses. They'd see what the elder had to say about the strange plant and what one of them thought had been a woman's head in the grass.
Some thirty minutes after Hassu and his friends had been angrily dossed down and questioned over the plant in the distance, and after he and his friends had assured their elder that they hadn't gone too close or touched anything, Hassu and his friends lay by the lake in the sun, fresh off a lively swim they'd taken after they'd gotten back. Wet and glistening and dressed only in lose pants, none of the three men noticed the stiff erections the others had, or the soft cracking sounds their skin made. None of them would. By the time their arousal had peaked and their bodies had started to dehydrate, each one was buried in the depths of a strong, stunning arousal that overpowered and subdued their minds and bodies. Some minutes after that, the fresh buds above their root-filled skin popped open, happening only a few seconds after the powerful orgasms each one had that would be their last thing they consciously felt.
