11. I've Gone and Done It (3)
"Nnngh... fwaaah..."
Like a child who'd just been turned loose in an amusement park. Like an excited mutt tearing around a pasture with no leash on. Lee Jiyoon was busy twitching through climax after climax, and I—kissing her, hands roaming every part of her body—only tore my lips from hers when I was on the verge of suffocating.
"...Hah."
"Hahk... hahk..."
How long had we been plastered together like that, wet and sloppy? The moment our lips parted, several sticky strands of saliva stretched between them. And not only between the mouths that had been endlessly trading lust—a few extra drops trailed slowly down Lee Jiyoon's chin, thrown in for good measure. Those had probably leaked out earlier, back when she'd tried so hard to go on the offensive herself.
Maybe she'd resented only ever being on the receiving end. She'd stuck her tongue out at me so cutely. Now she wasn't attacking at all. She was clutching a snapped white flag, surrendered completely.
Until I had her entirely in my hands, I wanted it buried. Let it slip by accident, and all the tenderness I'd built until now might burst like a bubble. The sticky, filthy want gulped its way down past my throat.
Just a little longer. Just a little. Really, just a little. Somehow.
Steeling myself, I stared at Lee Jiyoon—eyes hidden behind a pitch-black mask, panting hard as she forced each breath out—then gripped the back of her head and kissed her again.
"Mmph... heh...?"
This time, far lighter than before. Just lips touching, then parting. She'd assumed it would be another of those rough kisses and naturally opened her mouth, tongue lolling out—bleh—only to fluster and suck it right back in. All so I could tease her.
"...What are you doing, Jiyoon?"
"...P-putting spit on it..."
"On my lips?"
"...Yeah."
When I asked with a deliberately sly smile, the familiar forced excuse—I'd heard it a few times now—stumbled out in Lee Jiyoon's voice. If she started slapping putting spit on it onto everything, there'd be no end.
So if I said licking your clit was also just putting spit on it, would you let me? Dumbass.
"Why were you trying to get it on me?"
"H-huh?"
"The spit. Why were you trying to put it on me."
"Th-that's... nngh..."
Once again I seized one of her breasts in my hand and asked, gently scolding her clit where it sat soaked through with slick. Her thighs trembled with a sharp, tingling ache, and yet—secretly, because she wanted to feel good—Lee Jiyoon whispered while grinding herself against my fingers in little rubs.
"...K-kiss... practice... nngh..."
"That so?"
The moment the words left her mouth, juices leaked out from under her in little spurts and wet the bed. Crazy bitch. Every time she came she'd turn her head, bite her lip, and swallow the sound. So fucking cute. Maybe it was because I still hadn't gotten my pants off, but my cock felt ready to split.
"If I do it with the mask on... um... I can't practice properly..."
Once the twitching settled, Lee Jiyoon somehow assembled the words between her ragged breaths and held them out to me. A minute ago she'd been going on about the timing of the kiss or whatever. Had she forgotten all of it while stickily tangling tongues with her sister's boyfriend?
I couldn't keep indulging her. I drew the hand that had been freely squeezing her breast upward, and then—just like that.
"Let's take it off. The mask. It's useless now."
"...Hey. Seo Woojin."
I crammed the mask, damp with both our breaths, down into the very bottom of the empty trash can beside the bed.
"Yeah."
"Y-you answer too. Why you got spit on my tongue..."
"Because I wanted to kiss you."
"..."
No lie in it. An answer Lee Jiyoon would want to hear.
"This'll make for better practice, won't it? Better than smacking our lips and playing at kissing through a mask."
"...I... guess. Yeah..."
And at the same time, an answer that would leave her confused. Nothing elaborate. A shoddy little lie. I jammed it in, thud after thud, against the eardrums of a glitching, stammering Lee Jiyoon.
"But you're fucking terrible at kissing."
"...Sh-shut up..."
"You seemed even clumsier than Hayun-noona."
"It's my first time, so what am I supposed to..."
Embarrassment, maybe. Unlike a moment ago, when she'd been meekly taking my kisses, a little teasing and her mouth turned filthy in an instant. I took my hand off her soaked pussy, undid the belt cinching my waist to the point of discomfort, and tossed it lightly onto the floor. Clink. Clink. The same sound I'd given her yesterday in her sister's room rang out today in Lee Jiyoon's. The embarrassment that had been spilling out in busy little mewls cut off cold, and only the sound of my clothes coming off remained. Clink. Slide. Shff. Loud.
In the end, a cock already drooling from the tip began to pour a male stench that had no business being there into my girlfriend's... little sister's room. Panting, I moved in between Lee Jiyoon's legs with a raw cock I hadn't even bothered to cover. I peeled the fluffy sleep pants still hooked around her ankles, tossed them into a corner of the bed, and—unlike yesterday—meant to coat the skin of my cock in her slick instead of wet saliva. That was when—
"...Um. Seo Woojin."
"What?"
"The s...sex practice. You know..."
"Yeah."
"...Today. Um, from behind..."
"..."
"T-trying all kinds of positions will help later, so..."
Stammering the excuse out, Lee Jiyoon rolled over, the white sleepwear on her arms fluttering. She buried her face deep in the fluffy pillow, hiding a face drowning in shame, and pressed herself flat to the bed from her breasts all the way down to her lower belly. By coincidence—close to the position I usually took when I had my messy fill of Lee Hayun in the infirmary. Waist to pelvis to ass, and the lewd curve running on into her thighs, as if she were showing it off to me. As if she were sounding me out, just a little. Isn't a gloomy shut-in of a little sister, skulking around in the dark with her sister's boyfriend, lewder than that endlessly bright idiot of a social butterfly?
"Hoo..."
"..."
...I'm gonna lose it. There was no way she'd deliberately strike the exact same pose as Lee Hayun. Doggy style was a common position. It had to have overlapped by chance.
I let out a heavy sigh brimming with lust, loud enough for her to hear, and set a hand on that ass without a shred of hesitation. My thumb pressed in. Gently crushing the flesh, I asked.
"...Stay like that and where am I supposed to stick my cock? You keep calling me dumbass, dumbass..."
"..."
I could stick it in. Right between this soft, soft ass. So if all we were doing was thigh-sex, there was nothing wrong with the pose. She'd probably been picturing something like that when she said it. But I had no intention of stopping at thigh-sex with her today.
"Lift your ass a little. You know what taking it from behind means."
"...I d-don't..."
"...Don't start acting innocent this late. You knew what a blowjob was just fine."
"..."
Gripping an ass that grew more addictive the more I touched it, I whispered, low.
"Want to draw your knees in a little more? If you just hike your ass up, I can thrust between your thighs like yesterday."
"...Like this?"
"Yeah. Like that."
Nothing on her but a loose white polka-dot sleep shirt, barely hanging off her arms. It slid down, slow and smooth—from an ass so pale I wanted to brand it with red handprints, from a waistline so fucking lewd it was criminal, hips as naturally gifted as her sister's despite her doing nothing at home but game—all the way to her shoulder blades. Vulgarly speaking, lewd enough that I wanted to fuck her senseless.
Lee Jiyoon's ass, cold sweat beading at my fingertips every time I touched it. Thighs with cheap, vulgar honey dripping down them. A pussy clenched shut, twitching as if tense. A pristine cunt I wanted to slam my cock into as I pleased and ruin into my own shape—lewd enough to make my heart hammer. All of it. The whole secret sight of her. Carving every bit of it into my brain, I swallowed.
"...Ah. Hold on."
"...What don't you like now, dumbass... I did everything you told me to..."
"If we keep going like this, the bed might get dirty later."
"...If you mean a towel, second drawer right beside you...?"
From the pocket of the coat cooling on the floor, I took out a pitch-black box of condoms.
"..."
Still clutching the pillow, Lee Jiyoon's deep-green eyes landed on the condom. No particular words came back. For a second I wondered if she hadn't even recognized what it was—but the ear I could see from behind flared bright red, then slowly faded back to its color. She knew exactly what was in my hand.
...So why, even after seeing the condom, was she keeping her mouth shut and staying still?
Was she having some wide-eyed little thought—Ah, Woojin's going to use a condom so his cum doesn't stain the bed when he finishes?
Or was that obvious future simply not in her head—Ah, Woojin's about to slap some perverted excuse on this and try to have condom sex with me?
"..."
Before her sister. Herself, first. With her sister's boyfriend. The chance that she might actually have sex—and the corrupt thrill of it. She was aroused past reason.
"...I didn't bring it to have sex with you, Jiyoon."
"...H-huh...?"
"The condom. You kept glancing at it."
"Ah... I know. Yeah. I know too...!"
"We said we'd do sex practice. You and me."
"I said I know! Don't get the wrong idea...! I just—um... I've never actually seen one in real life, so it was interesting...!"
I tore the wrapper open without much care, scattered it across the bed, and rolled the condom—slick with lube—all the way down to the base of my cock. Like that, I kicked the blanket that kept snagging at my feet a little farther off the bed.
"...Practice. We agreed, didn't we?"
"..."
I rubbed my glans, so flushed with blood it looked ready to burst, wet and messy against Lee Jiyoon's entrance—parted only a little, and already her hymen was showing. I pressed as if I might shove it in right then and there, and each time I watched her shoulders flinch. Then, as if excusing myself—that was just to get her slick on it—I slid my cock, sticky with the mess of juices that had leaked out of her, gently between her thighs. And like that, I pressed my glans into the hollow of her navel, push after push.
"..."
...Crazy bitch. If she didn't want it, all she had to do was say so. But the sight of her silently drooling her slick all over my cock—if I kept just watching, I was going to lose my mind too.
I spoke with my cock, swollen tight, ground down against her thighs.
"Practice. Want to?"
"..."
No answer.
This time I spoke with my cock thrust between her thighs.
"Practice. Want to?"
"..."
No answer.
This time I gripped her ass tight and spread it, pressing my glans against an entrance drenched in slick and busy twitching since who knows when, and asked.
"Practice. Want to?"
"..."
Still no answer. Instead—
"...?"
Fumbling, Lee Jiyoon grabbed the phone that had been lying beside the pillow and typed something in. Then, face still buried, she reached an arm back and held it out to me.
A chat with Lee Hayun, by the look of it from yesterday. And beneath it. Right beside the send button.
A typo-riddled clump of text, left sitting there.