Not Yet a Saintess, But She Added Holy Water
“Ah… this…?”
Inside the pocket of my trousers, it had swollen like a snake, going fully hard and sticking to one of my thighs.
No. Why the hell is this thing standing at full attention all of a sudden?
The outline was so blatantly cast through the fabric that Erina took one look, bolted straight up to me, dropped to the floor in a crouch, and started grilling me on the spot.
“Yes. Could it be…?”
Could it be…?
Erina pressed on without missing a beat.
“Last week I told you that once I was ready this week, I would personally brew tea for you, Professor. Could this be… just in case it turned out to taste terrible…!”
“Kh—”
“Professor…?”
It was so absurd, so completely ridiculous, that a laugh nearly escaped me.
“Ah, no. Erina. Right. You’re not wrong. Well—actually, it isn’t quite that extreme a reason.
“I just prepared it in case I got hungry later, or for moments like this, to have with some tea—”
“Then give me some too.”
I had just barely managed to hold back my laughter and was ready to run with that story when—
“…What?”
Okay. Did not see that coming.
“There’s a cute teaching assistant right here, and you were planning to hog it all by yourself, Professor?”
“Mmm…”
“I was going to hole up in your lab all day today, you know…”
…It’s not like there’s nothing else to eat.
“Go grab something from the snack bin in the break room.”
Of course the lab had a stockpile of snacks and food set aside for when hunger hit during work.
“Professor…”
“Today, I’ll even allow you to dig into that Deluxe Sweet Chocolate you like so much.”
At those words, Erina—still crouched on the floor in front of me—flinched as if she’d been struck by lightning.
…It’s not like I paid for it myself anyway.
Kyle had already earned so much money that it was practically rotting away. One box ran about a hundred thousand won… or rather, ten gold coins—hardly cheap for a cookie set.
Something like that is nothing.
In Kyle’s memories, Erina had always coveted those cookies. This would definitely work. I needed to get out of this crisis right now. There was no way I could let a student catch me with an erection.
But then—
“I’m not a kid!!?”
“What.”
She’s turning it down?
Those were definitely Erina’s favorite cookies.
“I’m nineteen this year. A fully grown adult, thank you very much.”
Erina still had more to say and kept going.
“If anything, seeing you go so far as to sacrifice that expensive cookie set just to hide whatever’s in your pocket has only made me more curious!”
…Ha. Why won’t this erection go down? Why am I stuck in this mess?
“No, Erina.”
“I’ve had my share of cookies already, so let’s just take a look at what you’ve been hiding! What on earth could be so special that you’d stash it away like that! Hup…!”
Completely mistaken about what was in my pocket and unable to rein in her curiosity, Erina shot her hand straight toward it.
Squeeze.
“Erina, what do you think you’re—!”
“Please forgive the rudeness for now! Once I’ve confirmed what this is, I’ll take whatever punishment you give me!”
What kind of reckless—!
Then Erina suddenly sensed something odd and voiced her confusion.
“Hm? Why is this so warm… Professor, aren’t you hot? How long have you been keeping this heated up?”
…It’s part of my body. A little warmth isn’t going to make me overheat.
“Erina…”
What am I supposed to do with this girl.
Just how pure can one person be?
“Professor? Why aren’t you saying any—”
Squeeze. Squeeze.
“…Kh.”
“Hm? Now that I think about it, whatever’s in your pocket… for some reason it keeps twitching a little…”
Twitch. Twitch.
Erina began to grow suspicious of the way my manhood—my cock—twitched faintly under her hand every time she put pressure into her touch.
…That’s because you keep pressing and prodding at it with your hand.
“…….”
When I said nothing, Erina seemed to catch on that something was wrong.
“Wait, is this maybe…!”
She yanked her hand off my cock, covered her mouth, and wore an expression of pure disbelief.
“Ahem.”
“…I think I heard something about this once. A man’s… genitals? That an excretory organ can sometimes grow large and become hard.”
So she has heard of it, at least.
Doesn’t look like she knows the details, though.
Erina kept talking.
“To get big… um, it seems like it needs stimulation… stimulation… stimulation? I’m not sure what kind of stimulation that means…”
For now… I should probably explain before this gets any bigger.
If you really thought about it, nothing that catastrophic had happened yet. I wasn’t entirely sure, but my cock had started getting hard right after I drank the tea Erina had given me. That was all. Just a little mishap.
“Erina. Listen to me for a moment. This is…”
After a brief exchange of words and explanations…
“…So the cause was me, then?”
“No. Erina. Putting it that way is a bit—”
“It’s fine. This is… something that happened because of my carelessness. Because of me, your body has—”
…No.
All that happened is my cock got a little hard.
But why is this thing seriously not going down?
I really must have drunk something wrong…
“Speaking of which—could you tell me what ingredients went into brewing that tea?”
The erection aside, what on earth had she done to make tea taste that horrific?
“Um… let’s see. The flesh of a giant pearl oyster monster, mandrake root, kraken tentacles, hydra tail, poison frog legs, electric eel, black garlic, banana—I dried all of those, ground them into powder, steeped them in the tea, and then also…”
“?”
And then? Also?
Every single ingredient she’d listed so far was the kind of thing that made question marks spring up on their own. And there was more?
“…A little of my urine?”
“Erina?”
For a second I thought I’d misheard and called her name, and that one word seemed to snap her back to her senses. She waved her hands in a fluster, insisting it was a joke.
“…Ah, that last part was a joke. Honestly, what kind of crazy woman would think of putting urine in tea that people are supposed to drink?”
Back on Earth, there were people who called that holy water, if I remember right.
“R-right?”
“Of course, of course. Ahaha.”
Please let that be true.
No matter how dazzling Erina’s beauty was—eye-spinningly, outrageously gorgeous—I had zero interest in drinking a girl’s urine. It had to have been a one-off joke. It had to be.
“But, um… what was that? Those ingredients you just listed—what exactly…”
Whether Erina’s urine had gone in or not was one thing, but every last ingredient in that tea was…
They all seemed like foods meant to boost a man’s vitality or stamina.
Even if the ingredients in the tea are a little extreme, does just drinking them really make a cock refuse to go down?
Wasn’t that just folk medicine and old wives’ tales?
It was enough to make me wonder if some kind of magical enchantment had been involved… or if she’d accidentally created something close to poison…
Does Erina have a talent for poison-attribute magic or something?
“Ah, that…? You’d been looking really tired lately, Professor… so I bought ingredients I saw in a magazine over in the corner—ones that were supposed to be good for men—and steeped them in the tea. I never thought there would be a problem…”
So in other words, it was a drink she’d prepared out of concern for my body.
“Erina… no matter how good the ingredients are, just steeping them in water doesn’t make tea.”
“I didn’t know… tea… is a harder dish to make than I thought…”
“Is this real.”
Does tea even fall under the category of cooking in the first place?
Didn’t she just say a moment ago that it wasn’t that bad…
“Strange… according to my calculations, it should have given you ultimate stamina, Professor. So why did it go to such a weird place.”
“…Ultimate stamina, huh.”
My junior seems to have gotten the ultimate stamina, all right.
Come to think of it, Erina had tasted it too, drinking along with me. Was she fine? She’d said the ingredients were for men, but still…
More importantly, a student had spent her own money buying the things I was supposed to drink…
“Leave me the receipt for the ingredients that went into the tea.”
How much money could a student possibly have?
“A-anyway! Your… this thing is still swollen that big right now—shouldn’t we do something about it?! How do we…”
When you ran into this kind of toxin symptom, the treatment was usually clear. Looking at it broadly, it was just some variety of vitality tonic or aphrodisiac. Relieve the sexual desire, and it should resolve itself naturally, right?
“I can handle something of this level on my own.”
Handle it—well, that ultimately meant taking care of it by myself. There wasn’t much else I could do.
“But…! I want to help you too, Professor! That’s what a teaching assistant is for, isn’t it!?”
No… a TA isn’t supposed to wait on you for things like this.
More than that, she seemed to want to take responsibility for what she’d done.
Erina looked ready to yank my trousers straight down at any second.
But…
Asking anything of a girl who looked at a man’s genitals and, lacking the relevant knowledge, called them an excretory organ…
She probably wouldn’t even know what to do.
“No… Erina. Listen…”
“Please don’t stop me…”
Erina’s gaze and mine met in a straight line. Her eyes held a resolve that didn’t waver even a little.
“Haa.”
When I let out a small sigh, a faint tremor flickered for an instant through those large eyes that had seemed like an impregnable fortress only a moment before.
“I wash my hands of this…”
She was dead set on helping, insisting all the way to the bitter end. Well… as long as we were both adults, there shouldn’t be a problem.
“Really!?”
“Yeah…”
The moment my permission landed, Erina looked ready to leap for joy.
“Really really really!??”
“Yes…! Can you not ask again? I might change my mind and take it back.”
“Hup.”
Apparently she hated that idea, because she immediately clapped both hands over her mouth. It was extremely cute.
“That’s a good girl.”
But the good mood didn’t last. This time, looking thoroughly tense, Erina asked me a question.
“So… first, I just take these trousers down, right?”
Still not fully confident in her own actions, Erina timidly gripped and released the hem of my trousers as she asked carefully.
“…Yeah. If you don’t want to do this anymore, you can still st—”
“No!!!”
And with that she grabbed my waistband and yanked it straight down.
Thwoom—!
As the trousers went, my cock finally emerged into the open world, revealing its full majesty.
“Th-this is… the Professor’s… excretory organ…”
Erina’s gaze was locked in one place. The target was me, of course—but more precisely, not my face. Right before her eyes, casting a shadow over her tiny face as if it might split it in two, stood my cock, rigid and towering.
She clearly hadn’t expected a size like that. She lost her words and could only stammer.
“…Not an excretory organ. A cock. It’s a vital organ of the body that properly serves as a sex organ—one of the major pillars.”
Calling it an excretory organ wasn’t entirely wrong, but at least right now it deserved a different name… Its use and purpose had completely changed for the moment.
“C…ock?”
“That’s right. An organ that feels good when you stimulate it. Erina, your body should have something similar, shouldn’t it?”
Since we’d already started, it was better to do this thoroughly. Rather than half-assing it, taking care of only my own needs and calling it done, I figured if there was something she didn’t know, I should teach her properly—with the mindset of taking full responsibility through to the end.
But even after I’d pointed that out, Erina still seemed unable to get her bearings.
“I don’t… I don’t know. No… I think there might be something…?”
She doesn’t know?
For real?
A sex organ was one of the parts of the body responsible for erogenous zones, yet she hadn’t clearly recognized its existence yet. It seemed she was only vaguely guessing at it.
“If you don’t know, then there’s nothing to be done…”
“P-Professor, you can just teach me…!”
I’d said it casually, without much thought. From Erina’s perspective, it must have sounded different. Was she fretting that I might call the whole thing off even now?
Pat.
Amused by how adorable she was, I set my hand on top of Erina’s head. The eyes beneath it went wide in an instant.
“Don’t worry, Erina. I won’t stop halfway through or anything like that.”
“R-really?!”
“Of course.”
Erina checked several times over. Was it really something that needed that much reconfirming?
“Then… what should I do from here?”