First Time Back There (2) (Illustration — Viewer Discretion Advised)
“Heeet, hnn… hoo, hoo, hooo…”
For several minutes I worked my fingers inside Cha Eunju's back hole, loosening her up bit by bit. She had moaned obediently with her ass entrusted entirely to me, and somewhere along the way she'd collapsed completely across the desk, her freshly-parted hole twitching and winking in front of my eyes.

-Jolt, jolt.
“Heak, hah, hek… heak, hek…”
Perhaps she'd felt everything far too keenly through that back entrance — she lay sprawled across the desk in a rather undignified state, panting for breath. Of course, no matter how undignified the posture, the person in it was Cha Eunju, so all it did was look impossibly arousing.
-Squeeze.
“Hoo, hooht?!”
“It might feel a little cold, so bear with it for a second.”
-Press, squeeze.
“Oh, hooooht?! Hnyaaang?!”
I squeezed lubricant into her slightly gaping back hole, and Cha Eunju trembled at the sensation, reacting in that adorable way of hers. It might have been overkill, but I emptied an entire bottle of it into her anyway.
Unlike the front, the back demanded generous amounts of lubricant — everyone says so, and for good reason.
With Yoon Selena I'd simply rammed it in carelessly, because she was, well, Yoon Selena. With Cha Eunju, though, it went without saying that everything had to be done properly, from start to finish.
I'd gone out of my way to lift the hypnosis and unlock anal sex for her — if I left her with nothing but a bad memory of it, she might well refuse to do it again next time.
After squeezing the entire plastic container of anal lubricant into her ass and pushing it deep inside, I brought my cock to Cha Eunju's rear before any of it could leak back out.

-Sliiide.
“Hh, hhuht?!”
Startled by the touch of my cock against her rear, Cha Eunju jolted upright for an instant. I couldn't quite see her face, but she was almost certainly flustered. After all, anal sex was as new to her as it was today.
The finger at her anus before, the anal plug she'd worn while we fucked — all of it had merely been groundwork laid for this day.
Feeling as though I were finally releasing a desire I'd held back for ages, I pushed my cock a little deeper into her rectum.

-Shlup!
“Uh, hng-uph?!”
-Shlup, shlup!
“Hyaaang?! Hnyaaaaang?!”
Startled by the sensation of a cock entering her ass for the very first time, Cha Eunju cried out in that cute voice of hers. Perhaps it was thanks to how thoroughly I'd loosened her beforehand — her back hole swallowed even my considerable size with surprising ease for a first time.
“Haah, uh, Eunju…”
“Hhuht, S-Seonho…”
“Seriously, this way is no joke… you're gripping me so incredibly tight…”
“Haah, me, me tooo… it feels like even more of your cock is f-filling me up than usual, Seonho…”
-Shup, SHLUP!
“Hh, hhuuuuh-uph?!”
A little more. I drove the last remaining root of myself firmly into her hole, pushing the rest of my cock all the way to the deepest reaches of Cha Eunju's flustered rectum.
“Haah, huh… hoo, hooo, hnn…”
-Trickleeeee…
“Heak, hek… heeeak…”
At last, having fully accepted my cock from behind as well, a clear liquid slipped quietly from her urethra with a faint, watery sound.
“I'm going to move now, Eunju.”
“Ah, mm… I-I'm okay too…”
-Shlup!
“Ut, hhu-uph?!”
-Shlup, SHLUP!!
“Ugh-hu-uph…!! Haah, haah, huaaaaaang?!”
Cha Eunju's anus — soft, yet clenching down tight. When I buried myself in her pussy, it was the sensation of pushing into soft, yielding flesh; when I took her from behind, it was unmistakably hotter, tighter.
It couldn't wrap around me with the same silky give as her cunt, already molded to the shape of my cock — but instead there was this dense, desperate pressure, as though her ass were clinging to my cock for dear life, refusing to let go. The moment I felt it once, I was certain: I would never be able to give up either of Cha Eunju's holes.
-Shlup, shlup, SHLUP!!
“Hoooooht…!! Hh, hnguuuuuh…!!”
Her hole was tight as a vice — yet every time my hips swung forward, what met them was the soft, yielding plumpness of Cha Eunju's ass. That contrast, that difference in sensation, only made me hotter.
The thought that from now on I could use her front and her back alike whenever the mood struck sent the heat flooding through my head, desire rising and rising.
And so, after pounding into her back hole for a good ten-odd minutes, the approach of my second release crept up on me.
-Shlup, shlup, shlup!
“Eunju, I'm coming inside!”
“Haah, hh, hhuuuuuh!! Hnguuuuuh!!”
Cha Eunju answered with an ambiguous moan — impossible to tell if it was yes or no. She had nodded her head, though, so I'd take it as permission. Whether she'd actually meant to nod, or whether her head had simply bobbed along with the rocking of her hips, I couldn't say.
Not that it mattered even if she hadn't answered properly. Cha Eunju was a good girl who would accept anything from me — whether I came inside her pussy or her ass, whatever I wanted.
-Shlup, shlup, SHLUP!!
“Hhu, hh, hokkuuuuuh…!!”
Taking her moan as consent, I drove my cock deep into her rectum several more times — and then, timed to the very moment of my final release, I slammed myself in to the root, stabbing deep into Cha Eunju's ass.

“H-haaaaang!! Hnyaaaaaang…!!!”
Cute to the very last, and moaning those lewd cries as she took my cock right through the moment of my release — Cha Eunju. And into her rectum, wave after wave of my final desire poured in, again and again.
“He, heeak… haah, hh, hhuuh…”
When it was over, all I could see was Cha Eunju panting in my arms, breath heaving from her chest.
-Shlup!
“Haah, hoooooh!”
Even the moment I slid out of her back hole drew a cute little cry from her — she lay face-down across the desk, breathing those heavy, lascivious breaths.
The instant my cock slipped free, from the slightly gaping seam between her cheeks, my semen mixed with lubricant came trickling out of Cha Eunju.

-Drip, trickeeeeee…
“Hoo, hoooo… hooooooh…”
Watching that obscene, erotic sight, my cock stiffened right back up before I knew it.
⁎ ⁎ ⁎
After enjoying our secret tryst at the library, we made our way back.
Along the Academy walkway, where the evening glow was beginning to settle in, Cha Eunju and I started toward the dormitories together — though not walking side by side hand in hand as usual, but in a rather different arrangement.
I'd pounded her rather mercilessly into a back entrance she was using for the first time, and now she could barely walk; this was the road home with her carried on my back. In the oddly awkward air between us, I offered a light apology to the girl clinging to my back.
“Sorry, Eunju. I got too rough with you at the end…”
“N-no, it's fine! I-I liked it too… s-so I really don't think it was your fault, Seonho…”
“Is your butt okay? If it's really bad, should I ask Isabel to take a look at you?”
“Heek?! N-no… h-how would I even explain something like that to Isabel…?”
Fair enough. Even for Cha Eunju, telling a friend outright that she'd had anal sex was more than a matter of simple embarrassment.
Then again, knowing Kim Isabel, even if Cha Eunju came to her complaining of a sore bottom, she might not find it strange or suspicious at all — I hadn't taught her anything about that side of things, so her knowledge there was still lacking.
For a moment I thought that if I played it right, I could use Cha Eunju to introduce Kim Isabel to a new method of androphobia training — but apparently some things simply weren't meant to be.
'I'll have to train Kim Isabel separately. What else can I do?'
If it hadn't been for that bitch Yoon Selena, I could have taken things all the way to fingering or even anal sex yesterday. Honestly, of all the villain bitches out there — Min Yewon aside — not a single one had been useful. At least Min Yewon didn't get in the way of my work.
Considering all the trouble she'd caused me so far, the only option was to work her to the bone from now on, with everything she'd put me through as interest.
I fully intended to put her to active use when it came time to clean out the Black Moon's ranks, too — enough that whispers of Yoon Selena being a traitor would quietly begin circulating even within the organization.
Once she had nowhere left to return to, the only person she could lean on would be her Master. Of course, her real Master was still more than two years away from showing his face.
“I'll be gentler next time. This being our first, I guess I couldn't pace myself properly.”
“N-no?! Y-you can keep doing it just like this…I-it's fine, really…”
“Hmm? Why?”
“B-because if we do it like this… th-then next time too… I-I get to ride on your back on the way home, Seonho…”
“………”
“A-ah, o-of course it's not like I hated it or anything either…! Ev-every time your cock went in and out of my ass, i-it just felt strangely, really good…”
“…You really don't need to explain it in that much detail, Eunju.”
…So there really is such a thing as a talent for pissing off a cock, apparently.
Here I was already straining to ignore the soft warmth pressing against my back as I walked, and she had to go and say something that filthy — I was getting hard even while walking. The only saving grace was that with Cha Eunju riding on my back, my hunched, awkward gait wasn't visible.
“A-and besides, when we do it from behind… we can, well, do it twice in one day, you and I… a-ah, no! I-I mean, it lets me relieve your needs twice, Seonho…! Y-you were saying how hard it is to hold back with dorm life and all…. S-so as your girlfriend, it's only natural I take care of it, right…”
“…Right, Eunju.”
Even while being carried home on my back, Cha Eunju kept tempting me with endlessly filthy words.
And so, on that road home, I quietly resolved that every Tuesday afternoon free period would be reserved for her, from now on.
⁎ ⁎ ⁎
…And then, the next morning.
“Heok, hah, heok…”
“Seonho! Run faster! Why are you exhausted already?!”
Morning training with Choi Mari, same as always. But my body, in a state that was anything but usual, was collapsing faster than normal.
“Haah, hoo, huaaaaaa!!”
…Three times the day before yesterday, twice yesterday.
If I'd merely masturbated, I wouldn't be this drained — but that hadn't been it.
The price of cumming five times across three different women in two days was brutal. It had gotten to the point where even finishing the running course I did with Choi Mari every single day was a struggle.
“…Let's take a break here, Seonho.”
-THUD!
“Haah, hoo, haah, hooo…”
On any normal day I'd have bluffed my way through with some token bravado about being able to run more — but not today. Even in the middle of a runner's high, my body had hit its wall, every nerve screaming at me to stop running already.
“Honestly, you. You're really out of sorts today, aren't you.”
“Heok, I-I'm s-sorry…”
“…You've got nothing to be sorry for. Here, drink some of this.”

Perhaps because I was wheezing so pitifully, Choi Mari naturally held out her own water bottle to me.
The way the sweat glistened and flew in the sunlight, the way her chest gathered seductively as she leaned forward slightly —
-Gulp, gulp, gulp…
But I was far too exhausted to leisurely appreciate any of it, so I accepted her water bottle without hesitation.