Pop Goes the Weasel

"Lily, um, uh, is this some kind of joke?" Helen asked, her eyes as wide as saucers.

Lily stared blankly at her best friend, overwhelmed by the sheer horror of the moment. Meanwhile, the voice screamed in triumphant glee within the girl's mind.

YES! What are you going to do now bitch? She knows. She fucking knows and the only way out is to fuck her brains out right now. Stop fighting me and breed her!

Impossibly, the cock swelled even larger. Its fat head swelled to the size of a tennis ball and gurgled dark gray precum against the fabric of Lily's bulky sweatpants. As she stood there, a small dark spot formed where her mounting pleasure leaked into the fabric.

"Lily, come on," Helen said, almost breathless. "If this is a joke, it isn't funny. Why did you stick that thing in your pants?"

The poor little bitch has no clue. Educate her, dumbass! Show me to her and pump her full of your seed! She's young and ripe. Her womb will take our offspring readily!

"Helen, you need to go," Lily said.

"What the hell are you talking about, Lily?"

Lily tried to speak, but her words were drowned out by a loud, unholy groan the erupted from her lips as the penis throbbed even more. The fleshy rod rocketed upwards, bulging at the hem of her pants. The fat, crimson head began to poke out into the cool air of the closet.

Now the voice was at a fever pitch.

FUCK HER! FUCK HER. GRAB HER, THROW HER TO THE GROUND AND SHOVE ME INSIDE OF HER! STOP FIGHTING THIS! YOU AND I ARE ONE. YOU MUST BREED. YOU MUST GROW!

"Get, ugh, away, Helen. Please!"

But Helen did not run. Instead, the girl stumbled backwards, her horrified eyes pinned to the bulging red phallus peaking out of Lily's pants. Lily watched with mounting dread as the bewildered girl slipped on the puddled filth below her feet and tumbled onto her ass. Her legs kicked and slipped wildly on the floor and from the angle, Lily could see the girl's panties beneath her modest skirt.

It was then that Lily's vision seemed to turn red and the voice became all consuming.

DO IT, IDIOT! PULL ME OUT! THIS IS YOUR CHANCE! TAKE HER AND EMBRACE YOUR NEW NATURE!

Lily reached down and yanked the hem of her sweatpants down past her full, ripe ass. The massive penis, bulging larger than it ever had before at nearly fifteen inches, sprang up into the air, spraying a little jet of precum as it did so. Lily felt the cool air soothe her burning male genitals. Her balls ached painfully and felt so swollen. The cock throbbed with unspeakable power, the dark veins that striated its flesh glowing with wicked light.

Looking down at the bulging manhood between her legs, Lily realized just how utterly powerless she was to the dark forces she had stumbled onto. The voice screamed in her head so loudly and frequently that it seemed to subsume her own thoughts. All she could focus on was Helen's spread legs and beautiful, elfen face.

Lily stepped closer to her horrified friend, transfixed by the young woman's shallow, rapid breaths and tight body.

"Lily," Helen sobbed. "What is that? What the hell is-"

The girl was cut off as Lily jammed the fat head of the penis into her best friend's mouth. There was a sudden gush of warmth and moisture on the fleshy glans that was indescribable. Lily gasped and before she knew it, she was seizing the back of her best friend's head and shoving the rest of the meaty shaft down the girl's throat.

Feeling the girl's mouth and throat massage the enormous cock nearly made Lily bust on her first thrust. She had gone nearly an entire day without letting out any tension and the load she had brewing in her balls was clearly going to be titanic.

As soon as Lily buried herself to the hilt, she pulled the shaft back out until only the head remained in Helen's mouth.

Tears streamed down Helen's cheeks. The girl gagged on the fat cockhead and Lily responded by jamming her bulk back downwards.

There's no going back now, bitch. You chose this! You chose to **** your friend's mouth!

"I'm sorry, Helen. I couldn't, ugh, help it!"

It doesn't matter what you say! You've embraced me!

Before she knew it, Lily was jamming the fat cock in and out of Helen's mouth at a feverish pace. Her friend moaned and struggled weakly, but quickly seemed to be losing the will to fight back. The girl's eyes seemed glazed over and a trickle of dark filth leaked from the edge of her sweet mouth.

The orgasm hit Lily without warning. It started as a hot fire in Lily's testicles that rapidly coursed up the length of the monstrous demonic shaft. Lily screamed and jammed the head of the cock as deep as she could down Helen's throat. In the next moment, a blast of hot fluid erupted from the demonic member, splashing into Helen's belly.

"Oh God, I'm sorry Helen. I needed this!" Lily cried out.

Goddammit this feels good! You finally did something right, bitch! Now you can start growing!

As Lily erupted over and over again, she started to realize what the voice meant.

She felt what she could only describe as palpable darkness spreading like a fungus up from the demonic penis. The monstrous veins coursing with evil fluids snaked their paths further into Lily's pale flesh. The infernal crimson color also spread, bleeding into Lily's balls and onto the flesh of her groin. As the reddish hue overtook her sack, Lily felt the twin balls swell to a monstrous new size. Her balls were filling up with pure darkness and as they did so, the seed they pumped turned darker as it became saturated with wicked power.

"No, stop!" Lily moaned.

Too late now, bitch!

Lily squirted her load for an unreasonable amount of time, the sudden transformation of her balls helping fuel the process. Helen's eyes had glazed over completely, black spunk streaming from her mouth.

Finally, Lily pulled her cock out and felt one final, tremendous pump from the monstrous organ. The black goo splashed Helen's face and chest.

Lily, breathing heavily, stared down at her soiled friend. The poor girl looked nearly catatonic. What on Earth had she done?

Now that the pleasure had subsided, the horror of the situation mounted. Lily had assaulted her best friend. She was a monster.

"I'm so sorry," Lily said, the words coming out flat. "I'm so, so sorry."

She yanked her pants up over her still painfully hard erection and stumbled out of the room. She knew she shouldn't leave, but she also knew staying was impossible. Lily could not face what she had done.

So she ran, dashing out of the resource room and into the abandoned school, **** for this waking nightmare to end.