Frieren’s Party Discovers the Secret That Makes Cocks Become Huge

Chapter 1: The Strange Magic in the Ruins

During their journey, Frieren, Fern, and Stark entered an ancient magical ruin swallowed by the forest.

Deep inside the ruins stood a small altar. Floating above it was a tattered magic book whose cover, written in ancient elven script, read: “Manifestation of Desire · The Secret of Growth.”

Frieren tapped it lightly with her staff. The pages turned on their own. Fern leaned in to look, while Stark stood guard at the entrance.

“This is… a spell that temporarily enlarges the male genitalia?” Frieren’s tone was flat, as if she were reading ordinary magical theory. “It doesn’t consume much mana, and the effect lasts about six hours. The side effects are a significant increase in sensitivity, plus a short but intense refractory period after ejaculation.”

Fern’s face instantly turned red. “Master! Why are we even looking at something like this?”

“Because it’s ancient magic,” Frieren answered as if it were the most natural thing in the world. “And it’s written in great detail. Stark, come here.”

Stark froze. “M-me?”

“You’re the only male in the party.” Frieren had already begun chanting a simple spell. “The experiment needs a sample. Don’t worry, the magic can be dispelled.”

A blue magic circle lit up around Stark’s lower body. The next second he let out a short cry of surprise—

His pants were instantly torn open.

What had been a normal cock expanded to an astonishing size within seconds: thick, long, veined, hanging heavily between his legs, the tip already slightly glistening from the sudden rush of blood. Stark’s entire face flushed crimson; he had no idea where to put his hands.

“I-it’s so big…” Fern covered her mouth, yet her eyes couldn’t look away.

Frieren crouched down and lightly poked the now-enormous thing with the tip of her staff. Stark’s whole body shuddered, and clear fluid immediately beaded at the tip.

“Sensitivity has indeed increased,” Frieren noted. “Stark, how does it feel?”

“I-it’s strange… hot, and if anything even slightly touches it…”

Before he could finish, the huge cock twitched again and leaked more fluid.

Chapter 2: The “Experiment” That Had to Be Conducted

Because the spell could not be immediately dispelled (the book stated that semen had to be released once before it could stabilize and be removed), the three of them had no choice but to rest temporarily inside the ruins.

Frieren remained unusually calm and even took out a notebook to start recording data. Fern’s face was burning, yet she kept stealing glances. Stark could only sit awkwardly on a stone platform, trying to cover himself with his torn cloak.

“According to the records, this magic causes the bearer to experience a strong urge to release,” Frieren said while flipping through the book. “If left untreated, the erection may persist until the mana is exhausted, which is bad for the body.”

Fern asked quietly, “Th-then what do we do?”

Frieren looked up, expression serious. “Ejaculation is required.”

Silence filled the air.

Stark stammered, “I-I can just do it myself…”

“Self-handling would make the data incomplete.” Frieren stood and walked toward him. “Besides, your hands are shaking right now—success rate would be very low. Fern, come help.”

“M-Master?!”

“This is for research.” Frieren had already removed her gloves. “Opportunities to test ancient magic are rare.”

In the end, a bright-red Fern was pulled over. Frieren first demonstrated, wrapping her long fingers gently around the scorching huge cock. The mere touch made Stark let out a suppressed grunt, clear fluid continuously spilling from the tip.

“Far too sensitive,” Frieren commented, beginning to stroke slowly up and down. “Fern, you try too. Mind the pressure.”

Fern hesitantly reached out. When both hands gripped it together, Stark arched his waist hard and was on the verge of cumming instantly. Frieren promptly pressed her thumb against the tip and stopped the ejaculation.

“Not yet. Hold on a little longer.”

Stark’s eyes were already red. “Frieren… I really can’t…”

“Thirty more seconds.”

Fern, stimulated by the scene, was breathing hard; her fingers tightened unconsciously. Frieren calmly observed the pulsing and color changes of the massive cock as if studying a rare magical artifact.

The moment thirty seconds were up, Frieren released her hold.

Stark erupted. Thick semen sprayed out in pulse after pulse—so much that it splattered across his own abdomen and chest, with a few drops even landing on Frieren’s staff. The orgasm lasted abnormally long; afterward he slumped against the stone wall, panting.

Yet the huge cock did not immediately soften. It continued to twitch while still half-hard.

Frieren checked the book once more with her staff. “I see. After the first ejaculation the size stabilizes somewhat, but sensitivity remains very high. We can proceed to the second experiment.”

Fern: “There’s a second one?!”

Chapter 3: Deeper “Verification”

For the second experiment, Frieren decided to test the reaction during penetration.

Fern was so embarrassed she almost fled, but Frieren kept her there with the reason that “this is valuable magical research.” Stark himself had already given up resisting and could only cooperate with a red face.

Frieren had him lie on a relatively clean stone platform, then lifted the hem of her robe and straddled him. She performed no foreplay—simply aligned her already slightly wet entrance with the still-enormous cock and slowly sank down.

“So full…” She rarely frowned, yet did not stop until she had taken it to the root.

Stark let out a moan that was both pained and pleasurable. The inside was hot and tight; combined with the amplified sensitivity, he was on the verge of cumming again almost immediately. Frieren pressed a hand against his lower abdomen and said calmly:

“You’re not allowed to cum. I haven’t finished recording the contraction frequency yet.”

She began moving slowly up and down. Her long silver hair swayed with the motion, but her expression remained the focused look she wore during research. Fern stood to the side, legs unconsciously pressed together, eyes fixed on how her master swallowed that massive cock whole and then released it again.

“Fern,” Frieren suddenly said, “record the changes in his expression as well.”

“…Yes.”

When Frieren sped up, Stark finally couldn’t hold back. He grabbed her waist and thrust upward hard. Frieren’s body trembled slightly; she let out a very soft “nn,” then accepted the new rhythm.

When Stark came inside her for the second time, Frieren exhaled lightly, as if completing an experiment.

She stood up. Semen slowly trickled down her inner thighs. She simply cleaned it with magic, then turned to Fern:

“Your turn.”

Fern’s face was so red it looked ready to drip blood. “I-I can’t…”

“That’s an order.” Frieren’s tone was flat. “Besides, you’ve been dripping since earlier.”

Chapter 4: The Aftermath of the Secret

That day inside the ruins, the three of them tested almost every possible effect of the magic.

Including using mouths, breasts, feet, and having the two women take turns or work together. By the end Stark had been milked until he could barely form complete sentences, and the enormous cock finally, after multiple ejaculations, slowly returned to normal.

Frieren stored the entire magic book in her dimensional space and summarized in a calm voice:

“This spell has low practicality, but high value as research material. If we encounter similar ruins in the future, we can continue to supplement the data.”

Fern buried her face in her hands. “Master… do we really have to write this in the travel journal…?”

“Of course.” Frieren nodded. “But it will be encrypted.”

Stark lay weakly on the ground, staring at the ceiling, then suddenly asked:

“Um… will we use it again in the future?”

Frieren looked back at him, thought for a moment, and answered:

“If we need to relax during the journey, or if we encounter a situation that requires large amounts of mana catalysis… we can consider it.”

She paused, then added:

“Next time we can prepare a more suitable location in advance.”

Fern let out a shame-filled whimper.

And Stark, in his extreme exhaustion, quietly memorized the location of the book that had already been put away.

Chapter 5: A New Routine on the Journey

From then on, whenever they camped at night and no one else was around, Frieren would occasionally take out that magic book.

“I have some leftover mana today,” she would always say. “Let’s do a small experiment.”

Stark’s enlarged cock became an unspoken secret within the party. Although Fern was always too embarrassed to speak properly, she never truly refused to participate. Sometimes Frieren took the lead, sometimes Fern was half-pushed into joining, and sometimes the two of them worked together, sandwiching Stark between them until that massive thing had been completely emptied.

Frieren remained the same elf who loved sleeping and collecting magic.

Only now, among her magical collection, there was one more item labeled “practicality questionable, but experimental value extremely high.”

And every time the spell was cast on him, Stark would quietly think to himself:

Next time… maybe I can take the initiative a little.