"Elen! Elen!" A girl with long fiery-red hair screamed and kicked while she was held tightly around the waist by a muscular older man. Both lightly armored, the man's naked, sweaty muscular shoulders were reflecting the light from the scattered torches lying on the ground, next to the bloodied corpses of their fellow comrades. They were underground, deep in the tunnels beneath the mountains.
"She's gone, Helen! Gone!" The muscular man with a blue mohawk shouted in the girl's ear, trying to talk some sense into her. Helen's torso armor was covered in some slimy translucent liquid that had the stench of rotten eggs and made it more difficult for the man to prevent the struggling girl from slipping away.
"Aaah!" the other survivor, Elen, cried out. She was on the ground, on her back, twitching, and jerking, her perky C-cups bounced with each movement. The plated and leather armor that served as Elen's protection was destroyed. Some pieces were ripped apart, others—melted, scattered all around Elen, leaving her almost entirely naked.
Elen's facial features were similar to Helen's but twisted. She was sweating, her face was bright red. Tears rolled from her eyes and saliva leaked from her open mouth. At times, Elen's eyes rolled back into her head as she struggled under the assault of a giant fleshy abomination.
Elen's entire lower body up to waist was already inside the creature's repugnant mouth. The fat, protruding purple lips of the creature's mouth enveloped the girl's waist. Slimy liquid continued seeping from the creature's mouth. Slowly, inch by inch, the creature sucked Elen deeper inside.
"Uaah!" Elen cried out again as her whole body spasmed. She appeared too weak to put up any resistance to the creature. Elen managed to put her hands on the putrid lips of the creature. Whether it was a coincidence or the creature reacted to the girl's touch, the fleshy monster effortlessly lifted the girl several feet from the ground and slammed her back down.
"GHAAH!" Elen let out another cry. She stopped fighting back and laid there, breathing heavily. Her entire body continued twitching, even her hard nipples. With her last remaining strength, Elen reached out to her comrades and called her sister's name, "Hel… Helen… Helen!"
"Let me go!" Helen screamed as her companion slowly retreated with the girl in his arms. "She needs me! She's pleading! Brock, I beg you! Help her!"
"We can't help her!" Brock answered between heavy breaths. "Think of Lily! Who will take care of her if you stay!? Do you really want her to lose both her older sisters in one night!?"
"B-but!" Helen looked at her older sister. She never saw her sister in such a state and barely recognized her. Why was she making that face? A strong, proud warrior, Elen saved them all countless times, and when she needed their help… Helen couldn't hold back her tears. Their eyes locked for the last time before Brock pulled Helen away around the corner of the repugnant tunnels.
When Helen returned home and wobbled inside like a living corpse, she barely mustered the courage to face her little sister. But even then, she couldn't look Lily in the eyes when she finally gathered the strength to tell of their older sister's demise.
"Why didn't you save her!?" Lily, the blue-haired nine-year-old cried. "Elen always took care of you! Why couldn't you!? You can never do anything right! I hate you! Bring me my sister back!"
Helen took the barrage of accusations without an answer. She simply clenched her fists and teeth, cursing her own uselessness.
"I wish you were the one who was killed!" Lily screamed and stormed off into her room.
Helen huddled in a corner and wept.
That night Helen couldn't sleep. She futilely rolled naked on her bedsheets. She was sweating. Burning up. Each time Helen closed her eyes, she saw her older sister's face. That vulgar expression. At first, Helen lied to herself. That's not what I saw. Not Elen. She would have never… She begged for my help. She called my name! And I didn't help…
But as the night progressed, Helen's excuses made less and less sense to her. She knew what she saw. As much as Helen tried to deny it, that scene was not something she had never seen before. That unmistakable expression on the face of lesser adventurers who met a similar fate. The face of ecstasy. Her sister did not cry out in pain. She cried because of the intense pleasure. Elen did not call her sister's name to plead for help. She reached out inviting Helen to join her.
How could they have known they would encounter a Devourer in those tunnels? An S-class monster that Helen only ever heard rumors of. It was beyond the skills of even someone like her older sister. The fluid that the malformed abomination constantly secreted, was only one of its deadly weapons.
The taste, the smell, even simple direct skin contact with the fluids of the Devourer has an immediate effect on humans. What matters is the level and length of exposure. Even momentary contact with the fluid weakens the Devourer's prey. Over time, it drives both men and women mad with lust. Helen had no idea what the long-term effects of the contact could be. She never knew anyone who lived to tell the tale.
Helen now knew that the fluids also had acidic properties, as they heavily damaged her armor. But because of this discovery, Helen had some peace of mind that the fluid did not reach her skin because she did not have a single burn mark. Not even a rash. But for someone like her older sister…
Both the belly and the mouth of a Devourer are supposed to be always filled with that dangerous fluid. To have her lower body submerged in those fluids… At the peak of their effect, they continuously alter the human mind and body, until all, five senses are only capable of deciphering any sensation as pleasurable and arousing.
Helen wondered if her sister was still alive, inside the belly of the devourer. Was she thinking of her sister right now? Helen realized it was unlikely.
Eventually, the Devourer's fluids dissolve the human mind completely—it is simply overwhelmed by the continued overstimulation that it has not evolved to endure. Before long even the most strong-willed humans would not be able to form coherent thoughts. Their entire existence devolves to the simple need to orgasm again and again, willingly giving themselves to the ever-increasing levels of pleasure they could never experience during normal sex. Even if they beg for more, even if they beg to stop, the result is the same—absolute submission to the endless waves of ecstasy, no matter what is being done to them. The human part is gone. The only thing that remains is semi-conscious flesh, drooling from the demonic pleasure that never ceases.
Helen continued fingering her drenching pussy, imagining what it would feel like to be in the place of her older sister. She remembered her older sister's twitching nipples. Helen always thought her sister was better in every way, including her looks. To see her dear sister in such a state. Even though it was so wrong, why did Helen find it so arousing? Why couldn't she stop masturbating, thinking of all the ways her sister's hot body was toyed with?
When Elen reached out and called her sister's name to join her in the clutches of the Devourer. What if she did? Would they be both inside its belly now? Entwined, licking each other, cumming again and again while the monster's fluids drive them both mad.
Even when Helen climaxed for the second time to these depraved fantasies, it was still not enough. How could it be enough? When her older sister could experience so much more!
If Helen went out right now, would she be able to reach that same creature that swallowed her sister? Would she make it in time to join her older sister in the belly of the beast? She couldn't. She didn't deserve such pleasure. She made her choice when she ran away. Even if she regretted her decision now, she would never make it to her sister on her own.
Helen now only had her fingers and her fantasies to satiate that ache that never went away. Her sheets were drenched, her throat was dry and sore but Helen continued assaulting both her holes again and again until she finally passed out early in the morning.
Over the next several days Helen barely functioned as a human. She drank little and ate almost nothing. She even left her dear little sister to her own devices. Not because she hated her or held a grudge for what Lily said. Helen was simply kept forgetting that Lily existed. All her thoughts were with her older sister and the Devourer. During both the day and night, Helen could think of little else, sinking deeper and deeper as her fantasies got more depraved, shameful, and increasingly arousing.
Their supplies ran low, and the debt that had only increased due to the sisters' failed expedition was not going anywhere. However, Helen had no place in her mind for such things. After a few days, Lily got seriously worried about the state her sister was in, but Helen either weakly brushed off her concerns or outright ignored her little sister.
Bang! Bang! Bang!
Bang! Bang! Bang!
Lily was not supposed to open the door to strangers. She hid in the corner of her room, with her ears covered, but the knocking—that soon turned into banging— had already continued for well over an hour. And all this time Helen ignored it completely. Helen did not leave her locked room, nor even so much as respond to Lily's frightened calls for help.
After another hour of banging on the door, Lily couldn't take it anymore. She rushed out of her room, run to the wooden door, that still somehow remained on its rusty hinges, and opened it wide.
A tall pale man in his mid-twenties with short spiky silver hair stood at the entrance. He wore purple robes with golden symbols and looked calm and collected for someone who had banged on a door for several hours.
"May I come in?" He asked Lily.
"Who are you? What do you want?" Lily asked in a strong tone, looking directly into the man's crimson eyes while clenching her fist tight for courage.
"My name is Lucarad," the man answered and bowed. "I am looking for Helen. You must be Lily?"
"I-I am," Lily answered.
"A pleasure to meet such a lovely young lady," Lucarad smiled. "Is your sister still here? Is she well? Could you call her for me?"
"I… Already tried. What do you want with her?"
"I want to help. May I come in?"
"Y… Yes," Lily said.
The next moment Lucarad rushed past Lily with a gust of wind, like a dog that's been let off its leash. He rushed to the second floor as if he knew where Helen was all along. Without knocking, he broke down the door into Helen's room and found her on all fours on the wooden floor—moaning and fucking herself in her ass and pussy with the hilts of her daggers.