Yes, I was wearing the same outfit as her too; it felt especially liberating and didn’t feel strange to me.

In my previous life, Iris had a few of those outfits, and she wore them often, since they were something Astan liked.

So I didn’t feel even a shred of embarrassment, and now that we’re both on equal footing, her embarrassment will fade.

"U-um... is this really o-okay?"

Though it’s more out of bewilderment than anything else.

"Of course it is, don’t overthink it. Oh, by the way, it looks great on you, big sis—you’re really sexy."

"I-I... thanks... I guess."

"Hehe~ it’s only natural to say something when it’s true. So, what do you think of mine?"

"Gulp!... I-It looks g-good on you, y-you’re really sexy too."

"I really am, aren’t I? Hehe. I’m so hot... ahem, I mean, big sis, let’s keep going. Take a breath and relax; what’s coming next might be a little more intense."

"More? More than before?... Iris, I don’t know if it’s okay to keep going. It feels really good, but that’s exactly the problem—it feels so good that it also feels dangerous, and if the intensity increases any further, it really could be."

"Oh!... I hadn’t thought of it that way... you’re right; too much of a good thing isn’t always good."

"I’m glad you understand, Iris."

She seems to want to stop this, because I said it could escalate even further; I suppose her mental strength is very good and stable.

Even though she’s feeling good and her body is very receptive, she knows how to hold back and be cautious.

She’s rational enough to understand that the situation is getting out of hand and to set limits, but I’m not worried since I also noticed something else about her.

"Of course I understand, big sister, but you can handle it, right?"

"Huh?"

"After all, you said you could take a lot, and I want to see the true extent of this massage and see what it’s capable of. We also need to confirm if what you said is true."

"You’re right, but... I don’t know if I can keep my wits about me—it feels too good."

"But still, you’ll help me until the end, right? I mean, if you weren’t scared when I said I could kill you, would you back out just because it feels good?"

"Ugh..."

I noticed that she gets swept up very easily if I push her.

"So I can continue, right, sister?"

"Y-yeah, after all, this is to pay you back, and I was ready for anything... Iris, hmm... if I show an unflattering side of myself, I’d appreciate it if you didn’t make a big deal out of it and even forgot about it." 𝑓𝘳𝘦𝑒𝑤𝑒𝘣𝘯ℴ𝘷𝘦𝓁.𝑐𝑜𝑚

"Oh, come on, big sis, don’t say that. I can accept everything about you. By the way, sis, what would happen if you sucked my blood?" "

"Huh? Why the sudden question...?"

"I was just curious—"

"Well, I guess that’s just how spontaneous you are... if I suck your blood, there’ll be bite marks."

"I see. I won’t turn into anything, right?"

"Turn into something? Oh!, do you believe in those old legends? Haha~, how funny. Sometimes you can be surprisingly naive, Iris~"

Good to know. I asked for the same reason she did.

She’s well aware that she can lose herself in the pleasure of the massage, and I want to do exactly that too.

I don’t know how a vampire like her would react, and honestly, I’m expecting a bite or two. It’s a good thing it doesn’t have a major impact.

"Hmph (○｀ 3′○), big sis, don’t make fun of me... Well, now then, you’re ready for this second part, right, sis?"

"I-I’m ready... ahem, remember what I told you..."

She closed her eyes again, as if to endure the embarrassment of this massage, but I noticed that, while we were talking, her eyes kept drifting toward my chest and even my crotch; she was being discreet, but obviously I noticed.

It seems her taste for women is very pronounced and clear.

Unless something unexpected happened, I could already see how this would end, so, without wasting any more time, I got down to business and, applying rose oil, began with her collarbone.

Her skin was very red, and it was more noticeable in those areas.

She, still playing her part, kept giving me satisfying comments about how good it felt, though the moans were becoming more frequent, which is to be expected with the kind of massage I’m giving her.

I was already savoring my success, but when I moved down to her left breast and started getting a little bolder, kneading it as if it were a normal part of this massage—just when I thought I was going to get away with it—

"Haah~ that sensation... huh?— ah... I think I understand what you’re doing, Iris."

At that moment, she opened her eyes; her embarrassment had suddenly subsided, and she looked at me with a puzzled expression.

Shit, did I get carried away? Was I too bold? Let’s play dumb.

"Huh? What do you mean, big sis?"

I let my guard down because the situation with her seemed so advantageous; maybe she noticed the second massage that was stimulating her and wants to stop me.

But I didn’t stop and kept massaging her left breast, whose nipple was exposed thanks to the sexy lingerie; I wanted to pinch it, but it wasn’t time yet.

I have to get serious and see what she means.

"Mmngh... now it’s clearer... you’re injecting, through the massage technique, mana into my magical circuit and, somehow, you’re stimulating it and... mngh... repairing it."

ufff... big sis, you scared me.

Looks like it was a false alarm, though I’m surprised she can notice this kind of thing; it’s good to know, so I’ll be more careful in the future.

"Oh, big sis, can you feel it?"

"Yes, I have a magical profession, after all; I’ve been using mana for as long as I can remember... mngh... and now that you’re stimulating my heart, which is one of the mana nodes, I can feel it more clearly."

"Oh, so my big sis is a mage, that’s cool."

"Umg... but, Iris, what you’re doing is still dangerous; injecting your mana directly into someone else’s circuit could cause an incident... hmg~"

"Really? I didn’t know that, I was just trying out this unique massage technique my master passed down to me, I’m sorry."

"Don’t worry; even though it’s dangerous, I was already prepared for something like this, just as you warned me... Amngh. Besides... that massage technique is something out of the ordinary; it’s invasive, but it doesn’t cause any damage. Actually, I think I feel so good because it’s helping to heal some old injuries I have."

"I see, so that’s it. Just as I thought, this is the best reward. You don’t know how much that helps me, sister; it helps me understand many things better."

"Ugh... I’m glad that’s the case, and you can continue. At worst, it’ll just be one more injury to the circuit that I can fix with some potions... hmm, but you know, I feel like what you’re doing is already more effective than the potions."

"Really? Aren’t you exaggerating, sister?"

"No, I really feel like you’re clearing out accumulated damage I didn’t even know I had. Even if you cause some damage now, the benefits will still outweigh it. If you offered this as a service, many people in magical professions would come to you; you’d become a very popular masseuse."

"Hehe~ I’m glad my big sister understands how important this is and is letting me do whatever I want with her to thoroughly test if it’s safe."

"I understand it better now... go on, I won’t distract you and I’ll just express what I’m feeling at every moment... oh, for as long as I can stay sane... even though it’s good for me and feels good, it’s no joke how stimulating it is..."

Right, now let’s get down to business.

Without further ado, I began to move my nimble fingers naturally. With one hand, I made sure to keep stimulating her magical nervous system—something that could be done simultaneously—while shaping her breast to my whim, with a precision that didn’t seem out of place.

On the other hand, I used the other for something more direct: I pressed one of her nipples, which, by the way, were already very taut and hard; it was obvious what she was feeling.

Her body was starting to respond on its own.

"Yes, I feel so much relief... and how good it feels keeps getting better, keep going."

She kept giving me her feedback; whether on purpose or not, she ignored how I was playing with her nipple.

Maybe she thought it was part of the procedure... like the slap earlier.

I suppose now whatever I do will be interpreted as part of this peculiar and very beneficial massage.

So, without any hesitation, I got a little more aggressive.

I began kneading her breast with more force and intensity, feeling how it reacted under my fingers, while on the other side I started playfully pinching her nipple.

"Mmngh... yes... it feels so good, it’s getting better... it feels so good that I want you to stop... but at the same time, I don’t... mhgh... Iris, this massage is so weird... mngh... but effective..."

Yes, for her, everything is now part of the massage.

And that puts her in a problematic and even contradictory situation.

Her body is begging for some kind of release, but her mind is strong and she knows how to draw the line.

She’s feeling good... and she’s letting me do whatever I want.

But she hasn’t given me any obvious signals, like Azalea.

For her, this is still just a massage she has to endure and evaluate, nothing more, nothing less, and even though she’s obviously feeling good and is attracted to me, that doesn’t change anything.

Hmm... well, I guess that just makes her more self-conscious and shy... but that’s only for now.

Her mistake was giving me free rein.

I want to see the moment when that clarity... unravels.

That moment when my older sister Rose breaks down and gives herself to me.