After Zoe calmed down, we cleaned up and sat around the table.
The camp was quiet as if cold water had been poured over it.
Lucy broke the silence first.
"Did you two... fall for each other?"
Zoe and I exchanged glances.
Zoe answered.
"You know how Ikan ejaculates a lot. I thought I couldn't keep eating all that semen, so I tried this. But-"
I continued her sentence.
"4 mana was absorbed at once."
Lucy's eyes widened.
"4? It increased by 4?"
Zoe and I nodded.
Carefully sucking the huge dick and painfully swallowing all that semen only absorbs 2.
To think that one ejaculation inside absorbs 4.
Lucy was lost in thought for a moment, then spoke.
"Still, this doesn't seem right, instructor.
What if you get pregnant? You can lower the chance with mana manipulation... but there's still about a 2% possibility."
"Lucy, this is good news.
You don't have to do it anymore. I can quickly fill up mana by doing it with Ikan."
Both Zoe and Lucy have over 50 mana, and mana usually regenerates 1 per 10 minutes.
After a night's sleep, mana accumulates enough to be absorbed.
"...I really can't do it. I'm sorry."
[Lucy (Virgin)]
[Status: Worried/Apologetic]
[What if I do it with Ikan and then meet Samuel in the dungeon again. How could I face him...
I'm sorry, instructor.]
Zoe has the status window skill but can't see minds like I can.
But somehow understanding Lucy's feelings, she held her hand tightly.
"Lucy. You've done well until now. I'll fill up mana by doing it with Ikan from now on."
Lucy looked up.
"I'll do everything else instead. Meal duty and cleaning... and if there's a time when it needs to be done orally, I can help."
"Okay. I'd appreciate that.
Shall we move to the next safe zone then?"
We got up from our seats.
I glanced at Zoe's outfit and said.
"Zoe. I think wearing a skirt would be better. Just in case."
The implication was to wear a skirt for easy access in case we needed to replenish mana urgently in the dungeon, rather than tights that are inconvenient to take off.
"Oh. Is that so?"
"...Zoe...?"
Lucy looked back and forth between us.
Zoe said.
"Ah. I told him to speak casually. It's funny to call someone 'instructor' while... doing that.
It's good timing. Lucy, you call me sis too.
It's important to become close and unite in times of crisis like this.
Of course, when we return to the academy, you should call me 'instructor' during classes, okay?"
Lucy nodded.
"...Yes, sis."
We packed up the camp.
We could stay at the camp for a day, continuously ejaculating inside Zoe to increase the mana pool, and then leisurely continue exploring the dungeon tomorrow.
'They probably think the dungeon will end soon anyway.'
We left the safe zone and continued exploring the dungeon.
[Holy Explosion]
[Holy Explosion]
[Holy Explosion]
[Holy Explosion]
I used up all my mana in the next room.
A mana stone dropped.
"I'll go check the next room."
Lucy ran to check how many monsters were in the next room and came back.
"Skeleton Wraith. Five of them."
I think I read in the novel that it's rare for a dungeon room to have more than five monsters.
Anyway, Zoe immediately pulled down my pants and crouched in front of me, starting to suck my dick.
I lightly placed my hand on her head.
"You need to receive one ejaculation inside and one in your mouth within 30 minutes."
"Mm."
Zoe looked at me with understanding eyes and sucked my dick, making slurping sounds.
Lucy, standing beside us, said hesitantly.
"Is... is there anything I can help with?"
"Lucy, you keep track of time and after the internal ejaculation, you suck it with your mouth."
"Umm. Okay."
The huge dick became fully erect after receiving fellatio.
"Zoe. Lean against here and stick out your butt."
"Like this?"
I made Zoe lean against the cave wall and stick out her butt.
I lifted her skirt, pulled down her panties, and immediately inserted my dick into her wet pussy.
"Ugh."
Zoe threw her head back, trying hard to suppress her moan.
I started thrusting inside her vagina.
Squelch squelch squelch squelch.
Lewd sounds echoed brightly in the dungeon room.
A lustful pussy and butt trying to milk my semen.
Lucy swallowed her saliva beside us, watching.
As I kept thrusting my dick without rest, Zoe finally couldn't help but let out her suppressed moans.
"Hup. Hng. Aah. Ikan."
"Hm?"
"I... I think I'm going to cum."
"Should I pull out?"
"Ugh. No. Keep going, we don't have time."
"Okay."
Squelch squelch squelch squelch.
"Aaah♥"
Zoe started squirting as she came on my dick in front of Lucy.
Her voluptuous butt convulsing involuntarily.
Every time I thrust my dick inside her vagina, fluid spurted out with pressure.
Squelch squelch squelch squelch.
I continued piston movements without stopping.
"Lucy."
"Yes?"
"Come here and let me touch your breasts."
"U-um, okay!"
Lucy, who wanted to be helpful, came to my side.
I embraced Lucy while fucking Zoe.
"Just a moment. I'll undo the buttons."
Lucy voluntarily undid her combat uniform buttons and let me touch her bare breasts.
I embraced her and firmly grasped her breasts while kissing her.
Lucy, momentarily flustered, had no choice but to accept my kiss.
[No. My first kiss. My first kiss was supposed to be...]
But Lucy was a realistic person.
The situation where I needed to ejaculate twice in 30 minutes.
Moreover, she seemed uncomfortable leaving everything to Zoe.
[Right. I should... do at least this much. I'll think about it later.]
Lucy gradually became more active in intertwining her tongue with mine.
After Zoe came two more times.
I felt my ejaculation approaching as well.
I increased the speed of my thrusts.
Squelch squelch squelch squelch.
"Ah ah. I'm cumming. Zoe."
"Mm. Cum for me."
"Aah."
I grasped Zoe's butt and filled her vagina with plenty of semen.
"Aaah♥"
She was experiencing another climax while receiving my internal ejaculation.
Zoe, an S-rank hunter with strong stamina, had her legs trembling.
When I pulled out my dick, semen gushed out of her hole.
"Haah."
Eventually, she knelt on the floor and bent over.
I asked Lucy.
"How many minutes left?"
"15 minutes."
"Suck it."
"Okay."
Lucy crouched in front of me and started sucking my dick.
She sucked it deliciously, without any aversion, even though it was covered in semen.
I asked Zoe, who was bent over and panting.
"Zoe, are you okay?"
"Yeah. Don't worry about me and keep going. Huk. Haah."
Her lower body was convulsing.
Semen kept flowing out of her hole.
I grabbed Lucy's head with both hands as she was sucking my dick.
She looked up at me.
"We don't have time, so I'll do it."
I held her head and started thrusting my dick into her mouth.
"Ugh. Ub. Umm!"
Lucy hit my thighs, but I didn't care and kept thrusting my dick into her mouth pussy.
The huge dick for training was certainly effective.
As I kept making her taste my dick without rest, the hands that were hitting my thighs gradually lost strength.
It felt like her mouth was being developed exclusively for my dick.
My dick is invincible and my semen is divine!
"Umm. Uumm."
When I looked down, she was glaring at me as if she wanted to kill me.
"Lucy. You're doing well. Just. Just a little more."
I kept using Lucy's mouth pussy until Zoe calmed down beside us.
"Umm. Um."
"What?"
I asked why while still not pulling my dick out of her mouth.
Instead, I moved my hips faster.
"Uuumm."
Her eyes gradually became unfocused, and her slender waist trembled.
To think Lucy would cum while sucking my dick.
I pulled my dick out of her mouth.
"Heh. Hehe. Too much. Heck."
Lucy sat down on the floor.
"Good job."
I patted her head and went to Zoe.
Zoe voluntarily leaned against the cave wall and stuck out her butt for me.
"Spread your legs a bit more. Good.
Can I put it in?"
"Yes. Ugh!"
I inserted my thick flesh pole into Zoe again and continued thrusting.
Squelch squelch squelch squelch
"Zoe."
"Mmm."
"I'm cumming?"
"Cum. Cum for me."
"Aah."
Spurt. Spurt spurt spurt!
It's not called large capacity pleasure semen for nothing. Even after cumming several times, semen keeps spurting out like peeing without stopping.
"Aaah♥"
As I thrust my dick inside her vagina, overflowing semen made burbling sounds.
Ding.
[Mana: 5 / 6]
My mana increased from 4 / 5 to 5 / 6.
'I see, it first gets blocked at the maximum of 5 / 5, then gives a bonus of increasing the mana pool by 1 when it's full.'
Having 1 left makes me want to keep filling it.
"Girls. Let's go."
We moved to the next room.
[Holy Explosion] X 5
[Mana: 0 / 6]
One mana stone dropped.
We arrived at a safe zone.
The semen I ejaculated was flowing down Zoe's inner thighs.
"I'll go check the next room."
Lucy immediately set up the camp.
Zoe and I entered the camp.
Shortly after, Zoe crawled into the camp.
"Three Skeleton Wraiths. There are more rooms beyond that."
"Instructor, no. Zoe sis.
You should wash up first."
Zoe chuckled.
"When you call me sis, you can speak casually."
"Mm. sis, wash up first."
"Thanks."
Zoe went into the shower room.
I sat on a dining chair.
"Lucy, you worked hard too."
"What are you saying."
Lucy, standing next to me, lightly choked me.
"You're so cheeky for an F-rank."
Her soft breasts pressed against my head.
When I casually turned my head, my nose and mouth were buried in her breasts.
Lucy was looking down at me.
Although her face was flushed, she didn't seem surprised or change her posture.
I slowly moved my hands to undo Lucy's combat uniform.
Her snow-white breasts with pink nipples standing erect were revealed.
Lick.
I licked her nipple while looking up at Lucy.
She said quietly.
"If you want to suck, you can."
Slurp.
I didn't hesitate and sucked on her nipple.
Lucy's body twitched.
My hands traced down her slender waist and grasped both of her buttocks.
Lucy stroked my head.
"Okay. When you need to ejaculate, I'll let you do this much. I'll allow this much."
I licked her nipple and said to her.
"That won't do."
"Huh?"
I took the confused Lucy to the bed and laid her down.
I lay on top of Lucy and restrained both her arms above her head.
"Huk. Hey.
This is why you're so spoiled-"
"You saw in the dungeon, right? It's hard for Zoe to handle me alone.
If the dungeon gets longer, you'll have to receive internal ejaculation too."
After this dungeon story, the main character Samuel's shenanigans begin in earnest.
The content that readers wanted right away was the main character doing naughty things at school, but the author seems tired of the academy setting and changes the background to a tower or foreign country to continue the story.
Because of this, the main heroines are abandoned and evil forces begin to infiltrate the academy.
The story continues with the main character returning after the vacation and rebuilding the crumbling academy.
I want to prevent that situation from happening for the sake of the heroines before it occurs.
To do that, I need to make not only Zoe but also Lucy listen to me well in advance.
Lucy retorted.
"You just want to do it with me."
"What about you?"
"..."
"You let me suck your nipples just now?"
Lucy turned her head away sharply.
"Th-that was."
I grabbed her chin to make her look at me.
"You got excited and came when I forced you to suck my dick in the dungeon."
"When did I. Don't misunderstand."
"Are you going to let Zoe suffer alone? You saw her barely able to move after receiving internal ejaculation in the dungeon."
Lucy was silent for a moment.
[Hii. Do I have to do it with him in the end? If I do it with him, with Samuel it's completely...]
At this point, it seems Lucy had progressed somewhat in her relationship with Samuel.
'I don't remember well since she wasn't the heroine I was pushing for.'
After contemplating, she spoke.
"Can you ejaculate before sis comes out?"
Lucy, with blushing cheeks, glanced at me and then averted her eyes again.
"D-don't misunderstand. It's not that I want to do it with an F-rank like you, I'm just trying to help sis."
I chuckled.
"Okay. I won't misunderstand if you don't make any moaning sounds."
I kissed Lucy.