The Self-Appointed Sex Tutor
"Haa, ugh... Heidi, why...?"
I felt a sense of betrayal. It was likely the first time she had ever uttered such words since we’d met. She was the woman with whom she had shared only innocent, fresh kisses, yet here she was, performing such obscene acts upon her without her knowledge.
"Mari... you look so lovely right now~♥"
But it wasn't just Heidi's behavior that had changed. As if to teach her, Heidi, facing the disheveled Mari, began to caress her own breasts and pussy with her own hands.
"Haa, haa~♥ It’s amazing. It’s on a completely different level from just learning about it. I never knew doing this with you, Mari, would be this pleasurable..."
"Hei...di...?"
"You felt it too, didn't you, Mari? Just as I felt you, you felt me. I know you did. It’s just so, so exciting... Ee-hee, eek! It’s, it’s coming. It’s rising up~♥"
-Splurt!
Heidi reached her climax right after Mari, spraying a fountain of fluid. The moment that liquid splashed onto her face, Mari’s expression was filled with a sense of despair I had never seen before.
"Heidi, something is wrong. Things like this... this shouldn't be..."
To see the colleague she trusted and the woman she loved acting in such a lewd manner while watching her own disheveled state—she looked as if she wished it were all just a dream. Yet, in contrast, Heidi’s face, still consumed by the afterglow of her climax, wore a deep, satisfied smile.
"Yes, Mari. It’s your first time, so it’s confusing, isn't it?"
As if there were nothing wrong with her current behavior, she openly exposed the area between her legs—from which she had just sprayed her fountain—right in front of her lover.
"But think about it carefully, Mari. You reached a climax while I was touching you, didn't you? Your mind went blank, and you felt pleasure throughout your entire body. Isn't that right?"
"Th-that's..."
"Exactly. What we’re doing now is sharing pleasure by rubbing our bodies together. The deeper our hands go, and the stickier and more intense our actions become, the greater the pleasure we feel."
Yes, she truly believed she was doing nothing wrong. Having continuously heard the reasons and methods for these actions from me, she had become convinced. To her, the confusion of her lover—who had been subjected to this without knowing anything—was merely something that needed to be comforted.
"In terms of sharing emotions through physical exchange, don't you think this is something we absolutely need?"
"I-is that so?"
"Yes, it is. So you don't have to be afraid. Just like me, you'll get used to it in no time, Mari."
Heidi, finding no fault in her own actions, proudly spread her pussy and presented it before Mari. It was a filthy, developed slit, already poked and prodded multiple times, now dripping with juices that flowed in response to the love she felt for her partner.
"Come on, Mari. My pussy is quite dirty now. Won't you lick it clean with your tongue?"
"...Ugh."
Mari hesitated to approach at Heidi’s earnest request. Was it because the trust remained, or perhaps because she didn't want to disappoint her? Eventually, Mari overcame her physiological repulsion and, albeit passively, pressed her tongue against Heidi’s, beginning to lick her cautiously.
"I-is this how I do it...?"
"Yes, you're doing great. Just keep doing that."
Heidi patted her hair affectionately, as if she found her cute. Watching the sticky relationship between the two begin to unfold, I realized my cock was swelling to the point of bursting, and I prepared to masturbate.
"Hah, that's so fucking hot. Is this what they mean by 'the more, the better'?"
It was a moment where I finally understood why yuri characters often appeared in male-oriented games. Wow, two pussies!
Morning came after I had finished a few rounds while watching the two of them lick each other’s pussies. As usual, I was preparing breakfast when the two of them stumbled out of their tent, having woken up. Mari looked utterly exhausted, while Heidi, despite the visible fatigue, had a very refreshed air about her.
"Oh, you two are up? Did you sleep well?"
-Glare.
Mari glared at me menacingly. For a moment, I wondered if she had found out that I had been influencing Heidi, but after observing her a bit longer, I realized she was just in a bad mood.
"It's nothing, so don't worry about it."
"Oh, I see. If you say so, I won't pay it any mind. Let's start with breakfast."
They had expended a lot of fluid last night, so shouldn't they eat something nutritious? I served breakfast, and Mari picked at her food; compared to her usual habit of devouring three bowls, her pace today was exceptionally slow. On top of that, she kept glancing nervously at Heidi, who was beaming at me.
"Mmm~ it tastes great today, too. It feels like your cooking skills are improving by the day~"
"Haha, that’s thanks to you two for bringing in such high-quality ingredients. It makes cooking enjoyable, and I’m happy too."
"Honestly, ever since Chad joined us, it feels like everything is going well. At this rate, we’ll collect the points needed for A-rank in no time. Oh, of course, I shouldn't forget to make sure Chad gets his points, too~"
Heidi continued the conversation with me, her energy higher than usual. But even though Mari would usually interrupt and turn the topic to herself, she just watched Heidi and me from a distance. She looked uncomfortable and quite awkward... yes, she must have been thinking about what happened yesterday. Since she had licked what society considered a dirty area and had been licked in return, reaching a climax multiple times, it was only natural for her to be confused.
"Mari, are you done eating?"
"Y-yeah, I guess. I don't have much of an appetite today. I'm going to take a walk around the area."
Unable to bear the awkward atmosphere, Mari put down her half-eaten bowl and tried to leave. Once her presence had faded, Heidi used a light spell and spoke to me, as if the situation were ideal.
"Hmm-hmm, Mari seems to have completely left the vicinity. It’s the perfect moment for a secret talk."
"A secret talk, you say?"
"Well, it would be troublesome if Mari found out about the relationship between me and my Master."
"Oh, right, that would be... Master?"
Master? Who? Me?
"Well, you taught me things I didn't know, and I’ve received your grace, so isn't it fitting to call you Master?"
Heidi emphasized her words, as if there were no mistake. It was true that I had taught her about physical pleasure, given her complete lack of sexual knowledge, but calling me 'Master' felt problematic in several ways, given the nature of the content.
"Are you sure about that? I'm D-rank, and you're B-rank."
"Hey, why does that matter? What matters is that I intend to learn many more things from you, Chad."
"...Haha, it seems you had a very good time last night."
"Yes, it was a truly meaningful time."
Heidi clutched her cheeks, recalling last night. Her flushed face and mischievous smile held a sense of playfulness toward Mari, who had felt troubled while being teased by Heidi’s own hands.
"Master, you saw it yesterday, too, right? Our Mari, she refused at first, but at some point, she started clinging to me. At first, she was saying, 'Don't, stop!', but as time went on, it changed to 'Do more, make me come'... Haa~ Mari, who had always protected me, longing for me to this extent. This must be the correct way to express love, right?"
I don't know about that. To me, it looked like she had vulgarly defiled a love that should have been pure. But rather than saying that outright, it would be better for realizing my own desires to utilize this proactiveness.
"Then, shall I teach you something else this time?"
"Of course. Anything that can make Mari happy is fine by me!"
Good grief, she seemed like an honor student, but I never imagined she’d be so into this. Well, it can't be helped. As her Master, I have no choice but to live up to those expectations.
"Then, Heidi. Lend me your lips for a moment."
"My lips? Why..."
"I'm going to teach you how to kiss from now on."
"Ki-kiss...!"
Heidi was startled by my words, her face turning as red as a tomato. Unable to overlook what I had just said, she clutched her face and began to pour out her embarrassment.
"Master, no matter how favorable I am toward you, I have Mari. Doing something like that when we aren't even in love is a little..."
Ugh, why is she so hesitant when we’ve already gone as far as mutual masturbation?
"Heidi."
I decided that whatever the case, this was necessary for further progress, so I bluntly pointed out the problem in her love life.
"To be honest, your kissing is incredibly clumsy."
"Cl-clumsy?"
"In other words, there's absolutely no stimulation. You felt it yesterday, too, right? To truly crave each other, pleasure is necessary."
Just bumping lips and ending it? What kind of dull kiss was that? To truly crave each other, don't you need to share passion more stickily and hotly?
"Does that mean you can feel pleasure from a kiss, too? How on earth..."
"That's why I want you to lend me your lips just once. Close your eyes and let's try it just once."
"...Yes, if this is also for Mari's sake."
At the mention of pleasure, Heidi accepted and entrusted her lips to me. I grabbed her cheeks, then her jaw, and forced her mouth open. Then, I covered her mouth as if swallowing it, and began to penetrate it with my tongue.
"Ugh, mmm-!?"
Heidi’s body jolted in surprise at the unfamiliar sensation, but that was ultimately just the result of a virgin’s inexperience. I repeatedly stirred her mouth with my tongue, stimulating every corner until she was intoxicated by my color for a while.
Exchanging saliva and blowing breath into her mouth, I sought to momentarily steal her consciousness.
"Ugh, ugh... Phew..."
When I finally pulled my lips away, I saw Heidi wearing a dazed expression, unlike before. Facing that face, which looked almost ecstatic, as if drunk, I immediately asked her a question.
How was it? You understand why I said it was dull now, right?
"Ye-ye-hee...♥ Th-this is a kiss... everything I've done until now... was just... a joke...♥"
Haha, she seems to have suffered quite a culture shock. But she shouldn't be this surprised. I still have so much left to teach her.
After that, I took every spare moment to teach Heidi all sorts of sexual knowledge. Heidi, who absorbed everything like a sponge, would enter the bedroom with Mari at night and repeatedly put what she had learned into active practice. From the French kissing I taught her, to the 69 position where they licked each other’s pussies simultaneously, to using their own hands and each other’s to masturbate one another.
"Haa, ugh... Heidi, it’s still strange. Th-things like this..."
"Haa, Mari. You say that, but your pussy is already tightening up, so that’s not very convincing~♥ Can I poke it even harder?"
"N-no. Things like this are still... Ah-hut~♥"
It was a heat so intense it could melt the Arctic. Watching that scene in secret served as great material for masturbation, and as I felt the relationship between the two develop, I was able to satisfy my own sexual desires as well. But it was still frustrating. Even though two pussies were hotter than one, it couldn't compare to thrusting my cock and releasing my seed.
Well, appetizers are just appetizers; they aren't enough to fill one's stomach.
"Is it finally time for the harvest?"
Yes, they had reached the point where they would masturbate on their own and drip with juices, so they must have grown into pussies perfect for accepting my cock. The question was how to build up to sex... Hmm, Heidi’s goal was to spend quality time with Mari, so she probably didn't feel the need to crave a cock yet.
This is troublesome. It would be great if I had some kind of clever trick.
"Ah..."
While I was thinking that and masturbating in my room, Heidi suddenly opened the door and stepped inside. Seeing me masturbating, she let out a vague laugh and locked the door.
"Master, you’re taking time to comfort yourself, too. If I had known, I would have knocked... I was too impatient."
"Oh, well, it’s just us, so it doesn't matter."
Usually, she would have screamed and run away, but since she had absolutely no sexual shame, her reaction was quite dull. Regardless, her gaze remained fixed on my massive cock.
"M-Master..."
As if a topic had occurred to her, Heidi asked me a question born from her own realization.
"Is it possible to masturbate by rubbing our genitals together?"
"...Um, for example?"
"Well, you know, when you grip and tighten a cock with your hand, it gets stimulated and sprays fluid. Conversely, a female genital accepts penetration and feels pleasure... I was thinking that by inserting a male genital into a female one, a relationship where both people can feel pleasure might be completed."
Holy shit.
We haven't even reached the advanced stage, and she’s already realized that much? She was truly an honor student of sex; my thumb naturally began to rise in approval.
"To think you deduced that much. I shall bestow upon you 100 praise points."
"Eh, hee-hee. I wasn't sure, but it was true~"
Heidi smiled shyly, as if happy with my praise. At the same time, as if expecting something from me, she put her hands behind her back and began to watch me cautiously.
"Th-then, since the topic has been brought up... if it’s alright..."
Hey, no way.
Is she really suggesting what I think she is?
"Today, could we try comforting each other’s genitals together?"
This crazy lesbian is leaving her girlfriend and coming to a man to demand a cock. If this were a yuri story from my original world, this development would absolutely never happen.