On Tuesday nights, Winter usually returns home around 9:00pm from her volleyball game.

By 9:30pm, she usually has already dropped the babysitter off at home and is back at her own house, winding down for the evening and getting ready for bed herself.

However, Winter's Tuesday nights have drastically changed as of late. It's already 9:30pm, but Winter finds herself still at home, on the couch, and with Karina on her lap as they trade sloppy kisses. Even with the threat of her son waking up and coming downstairs, Winter somehow finds herself with her sweatpants tugged down to her ankles so that there's one less layer of fabric barricading them as Karina grinds herself against Winter's erection.

Winter doesn't exactly know why she's allowed herself to revel in such an indulgence (though she tries not to dwell on the idea that she's welcoming Karina's affection to fill some sad void in her life). More likely it's because it has grown impossible—and exhausting—to ignore Karina's advances…especially on nights where Winter's loneliness convinces her that she should treat herself.

So Winter bargains with herself that she'll spoil herself—just a teeny bit. It's not irresponsible if she just simply sets some boundaries.

That way, it's not so bad…right?

What Winter had originally promised herself was just a little bit of making out. That's pretty innocent, right? Just some kissing—maybe a bit of rubbing—that isn't so bad. It felt way too good though. Good enough that she slacked her reins a bit further to include some heavy petting, just to help scratch the itch for both of them. But hands only.

This though…this proximity is a bit dangerous. Karina's writhing on her lap with nothing but their underwear separating their groins from each other.

That's the boundary though, Winter tells herself. For real this time. No farther than that.

"A-are we going to…go all the way?" Karina asks.

Winter licks her lips, hating the alluring invitation. She tries not to be hypnotized by Karina's clothed pussy rubbing against her erection. The fabric between them is so thin that Winter is sure she can feel the girl's lower lips enveloping her. She tries not to fantasize too much about how Karina's pussy would feel on her cock.

She lifts up the pleats of Karina's school skirt a bit to better see the shape of the girl's body grinding against her. As tempting as the thought is, she shakes her head. "N-no. We shouldn't."

Karina briefly chews on her own lip before pressing her hips down a little harder, rubbing herself over Winter's briefs. "But it feels really good."

"I-I know, baby," Winter replies, gritting her teeth. She's starting to feel dizzy from the lack of blood in her brain.

"Unnie, why won't you go all the way with me?" Karina complains, licking her way into Winter's mouth for a messy kiss.

"I'm not going to—mm—take your virginity," Winter pants between kisses. "And I already told you, I can't risk you getting pregnant."

"But can't you just—ah—p-pull out or use a condom?" Karina whines.

"That's still not a hundred percent safe," Winter replies. She continues to hold Karina's narrow hips, guiding the girl back and forth over her cock, making sure to hit all the good spots. "And I want you to be safe."

The bratty pout on Karina's lips suddenly melts into a soft smile, like she's touched over the older woman's concern. And from that same sweet smile, she bluntly asks, "Do you want to fuck me in the ass instead then?"

Jesus Christ. How the hell does Karina manage to ask something like that so casually?

"K-karina," Winter sputters, briefly choking on nothing besides air and the teenager's vulgarity. She can feel her cock throb in her briefs. It's probably dribbling precum from its slit too. "D-don't just say stuff like that."

"Why? Don't you like it? It was in one of your videos."

"They're videos," Winter stresses. "Those are porn stars. That stuff hurts and takes a lot…preparation. I don't want to hurt you," she whispers.

To make her point, Winter rises up in her seat a bit so that she can kiss Karina's neck, careful not to do so too roughly. She can't mark the teenager in any way that would have her parents or friend's asking questions. She reaches between their bodies and slides her hand into Karina's panties.

"U-unnie," Karina softly whines, wrapping her arms tightly around Winter's neck.

This is fine. As long as Karina feels good, this is fine.

As Winter starts to finger the girl's cunt, she hears the obscene little noise that starts to fall out of Karina's mouth. So she presses her lips to the shell of the girl's ear to warn her, "Shh, don't wake up Hyunjin."

Obedient, Karina immediately folds her face into Winter's neck and tries to muffle her moaning there.

It's so warm with their bodies pressed so close together. Winter's starting to break in a light sweat and her hand is cramping from the awkward angle due to the little room between them. Still, Karina is such a horny teenager and it doesn't take too much effort on Winter's part to make the girl come. With her fingers pumping and her palm rubbing against the girl's engorged clit, Karina eventually starts to squirm on her unnie's lap before biting down onto Winter's shoulder to suppress her lewd moaning.

Winter's so turned on about the teeth sinking into the shoulder and the pussy walls gripping and spazzing around her fingers. It's so hot that she has rendered Karina to such a state. "There you go," Winter coos, dropping slow kisses onto the girl's shoulder. "Feel better?"

Karina finally pulls back a little bit. Her cheeks are flushed and she's panting hard, but she still nods.

Winter can still feel the girl's body shivering and her pussy still pulsing with pleasure. She sighs before leaning in to softly kiss Karina's neck. "God, why are you so cute?"

Karina softly whimpers, loving this kind of attention from her unnie. Figuring that she should reciprocate the favor, she reaches down and rubs the obvious bulge in Winter's underwear before reaching for the elastic waistband.

Winter hastily grabs Karina's wrist and pulls her grip away though.

"Unnie," Karina quietly protests. "Winter-unnie, I want to—"

"No," Winter swiftly replies before forcing her lips onto Karina's and swallowing the younger girl's objection.

In her horrible lust-impaired logic, Winter reasons with herself that she's still drawing boundaries. She can't have Karina touching her. That would be going too far. It's only okay as long as Karina is the one deriving pleasure from this. However, feeling all of Karina's slick on her fingers isn't helping Winter make any logical decisions.

So tantalized by the feeling, Winter rubs the girl's pussy once more, gathering wetness on her palm, before finally removing her hand from Karina's panties. Winter then slips her hand into her briefs and wraps her slick hand around her hardened length.

Feeling the sudden movement between their bodies, Karina pulls away from their kiss to see Winter's hand inside of her briefs, stroking herself. The fit of the black fabric is so tight that it's really not leaving much to the imagination, but still, Karina really wants to see. She tries to reach down again only to feel Winter's grip on her wrist tighten and deny her from doing so.

"Winter-unnie, I can—"

"No," Winter denies again, panting harshly as she speeds up.

It feels really good with some of Karina's cum to help lubricate Winter's stroking hand, but she really wishes she had a little more. God, it'd probably feel incredible to fuck the girl's tight virgin pussy, but Winter would happily settle for grinding her cock right up against the source of the wetness that currently streaked over her length. She closes her eyes and imagines it. Imagining it is the only way that she can retain some sense of actual self-control around Karina.

"Oh wow…."

Karina's voice is so tiny, but Winter still hears the little gasp that she just made. She opens her eyes to find the younger girl staring so intensely at her pumping hand. It's so hot to watch Karina's attentive eyes as they observe her masturbate. Though when Winter looks down, she realizes why Karina is staring so damn hard. The tip of Winter's cock is poking out over the top of her briefs. The head is flushed red and glistening with precum as her hand continues to furiously pump up and down her length.

Karina leans forward and timidly kisses Winter on her cheek before softly saying against her ear, "Can I please touch you?"

Winter groans—practically growls—at the sweet girl's offer. "N-no," she denies again, albeit much weaker than before.

"Can I at least…see then?"

"Wh-what?"

"C-can I see your…your…?"

Winter licks her lips, so enthralled by the Karina's blown pupils and how hard she's staring at Winter's pumping hand. "You…haven't seen one before?"

Karina nervously chews on her lower lip before shaking her head. "Can I…?" she timidly asks, reaching down to the side of Winter's hips, thumbing the elastic of the black briefs.

Boundaries. Boundaries. Boundaries.

Winter told herself to set boundaries, but she's not even sure how to define them as she lifts her hips up a bit, allowing Karina to tug her underwear down to her knees.

If this were any normal relationship, Winter would be a little self-conscious about being exposed in a decently lit living room and from how intensely Karina is staring at her cock once it's free from its fabric confines. But Karina doesn't have any frame of reference to compare to.

All that the teenager knows is that Winter's cock is so…big. It's so hard and flushed with visible veins straining against the sides, like it's going to burst at any second. The head of Winter's cock looks smooth and shiny with droplets of precum smeared over it.

It's so hot seeing Karina's hypnotized gaze. Her expression looks so blank, like she can't process the sight of her unnie's cock. Winter really wishes that she doesn't have to set boundaries with the girl.

However, she has little hesitation about pushing them.

"Baby, c-come here," Winter instructs, grabbing the girl's ass and sliding her up on her lap.

Karina obeys and shuffles in closer together till their groins are practically touching again. Now in the perfect proximity, Winter reaches forward and tugs the girl's panties to the side before sliding the head of cock through Karina's still drenched pussy.

Winter moans and Karina gasps from the incredible sensation. The girl's hands fly out to steady herself on Winter's shoulders. This feels so much better than just grinding with their underwear on. It feels so fucking good—fucking amazing—with Karina's abundant slick aiding them to glide against each other.

Karina's thighs twitch as Winter's cock keeps rubbing over her sensitive clit, which is still coming down from her orgasm. Anticipation floods her veins as the head of Winter's cock grazes over her pussy entrance. "Un-unnie, are we going to—?"

"N-no," Winter gasps. She speeds up the pace of running her dick through Karina's slippery lips, focusing most of the pressure against the tip. "Jesus, why do you feel so good?" she whimpers.

"Unnie, please," Karina softly begs, going crazy at how close her unnie's cock is to her pussy now. "I want to try—"

"No," Winter immediately dismisses.

She slides her cock against Karina's warm pussy a little firmer, ensuring to coat her entire length in the girl's juices. The slickness feels so amazing on her skin. Absolutely heavenly. Winter's eyelids start to flutter as her pleasure peaks.

"F-fuck. I-I'm gonna come," she wheezes while pulling herself away.

She drops her head back against the back of the couch and chews on her lower lip to stop herself from moaning too loud. With a few last pumps of her hand, Winter comes all over herself. Despite their exposed lower halves, both of them are still dressed from the top up, and Winter can't control it as she sprays ropes of semen onto her t-shirt. One spurt accidentally ends up on Karina's skirt as Winter pumps the load out of herself.

"Oh fuck," she whispers to herself, basking in the soothing relief of her afterglow.

She's about to apologize to Karina for getting some cum on her skirt, but the younger girl is already rushing to get off of Winter's lap. Worried about the abrupt movement, Winter cranes her head up from the couch.

"You okay?" She watches Karina fall onto her knees. "W-what're you?—oh!" Winter's hips nearly launch Karina right off of her lap when she feels the touch of the girl's tongue, but Karina holds tight onto Winter's waist to keep herself planted. Enthusiastic, she softly licks and sucks on the head of Winter's soiled cock, cleaning off the woman's cum with her mouth. "K-Karina," Winter weakly gasps, twitching at the warm, wet tongue running all over her sensitive cock.

When it becomes too much for her, Winter reaches down and pushes the younger girl's head back. She can't decide what's worse: the fact that she's so turned on to see Karina with her hair cutely tied up in her space buns and kneeled in front of her spent cock…or having seen Karina's tongue licking her cock.

Winter's going to die from arousal.

And if not from arousal, then definitely from sinning.

"Winter-unnie, can I try blowing you some time?"

Fuck.

Winter should be flaccid by now, but her erection still hasn't completely disappeared.

"Karina."

Winter sits up from her slouch and leans towards the girl, who's still on her knees and with her arms folded on Winter's lap. Using her clean hand, the older woman slowly cups Karina's face into her palms and gently plants a kiss onto the girl's forehead. After that, she gradually makes her way down to kiss the girl's cheeks, and then finally settles a slow kiss onto Karina's lips. She kisses her deeply, practically drawing the air right out of Karina's lungs and leaving her a little lightheaded before finally pulling away.

Winter presses her lips together, savoring the taste of the girl's candy apple lip balm. "You shouldn't be doing such dirty things with that mouth of yours," Winter whispers, still catching her breath.

For how brazen Karina is with her actions, it's adorable to see how a simple, slow, intimate kiss makes her visibly weak. Her voice is extra soft when she asks, "B-but don't you like it? It was in all of those vi—"

"Videos, yeah," Winter says, completing the girl's train of thought. She tenderly strokes her thumb against Karina's cheek. "But like I've told you before, they're just videos." Her thumb gently swipes over Karina's bottom lip.

Boundaries.

Winter tries not to imagine how good those lips would look wrapped around her cock.

"You shouldn't be doing this kind of stuff just because of what you've seen on the internet," Winter says. She wipes her hand on her thigh before pulling her briefs back up. "I don't want to hurt you," she adds.

Blushing, Karina slowly stands up and fixes her skewed underwear and skirt. She grabs a tissue to clean the cum from her skirt. "But you're not hurting me," she insists.

Karina waits till Winter tugs her sweatpants back on before she decides to straddle Winter's lap again. She winds her arms around Winter's neck and feels the older woman hold her in return. Smiling softly, Karina rests their foreheads together before giving Winter a kiss on the tip of her nose.

"You can go all the way with me if you want. I'm ready."

Winter closes her eyes and takes a deep breath, trying to calm her excited heart and mind from being carried away by Karina. God, this teenager is absolutely talented in brainwashing her. "You're not ready, trust me. We can't go any farther than this, okay?" Winter says.

"Why? I want to," Karina reasons. "And I'm pretty sure that you want me too, don't you?"

Karina's words often have a habit of making Winter dizzy. She swallows hard while wondering where the hell this teenager learned to be so damn confident—practically to the point of being a little narcissistic? (Even though Karina isn't exactly wrong….)

Winter's grown to want Karina far more than she even wants to admit.

"Karina, you know that we shouldn't be doing anything in the first place."

"I want my first time to be with you though," Karina sweetly says, twirling a lock of Winter's red wine hair around her index finger. "Don't you want my first time to be with someone that I trust?"

There she goes again. Karina somehow has a natural talent to say things that make both Winter's heart flutter and her cock throb for attention. It's so annoying and exhilarating, all at once.

"K-Karina—"

There's a sudden thumping that comes through the ceiling above them and Karina and Winter share a panicked look once they realize that Hyunjin's awake. Winter doesn't even need to shove the girl off of her lap when Karina rockets off on her own and quickly takes a seat next to Winter, at a nice appropriate distance.

The soft thumps start to grow a little closer as the boy starts to descend down the stairs above them.

Winter goes to comb out her hair, but suddenly realizes that there's still cum all over her t-shirt.

Fuck!

She hurriedly peels her shirt off, leaving her in just a camisole, and then proceeds to stuff her soiled shirt in between the couch cushions. She doesn't miss Karina's gaze that's now incredibly fixated on her poorly covered breasts. Winter shoves down the feeling of how much she likes being looked at like that.

Not even five seconds after Winter's wiped her mouth off with the back of hand does Hyunjin round the corner into the living room while rubbing his sleepy eyes.

"H-hey, honey," Winter greets. "What're you doing up?"

"You guys were bein' loud," the boy murmurs before yawning.

Winter feels a horrible panic fill her from head to toe, destroying any lovely afterglow she may have been experiencing. "Sorry, we were just…talking. We didn't mean to wake you up."

"But it's tennn," the boy complains.

Oh shit. Winter picks her phone off of the coffee table to confirm what her son has just told her.

"Oh geez, I gotta get you home. Your parents are probably wondering where you are."

When Winter turns to face Karina, she notices that the girl's eyes are shamelessly fixated on her boobs. Winter controls her smile, trying not to let the blank stare inflate her ego too much.

"Karina."

"Y-yeah. I-I'll let them know that we're on our way," she replies, voice a little small as she brings her eyes back up to a polite level.

Winter stands from the couch and tries to ignore the sticky feeling on her cock inside her pants. She'll take a quick shower when she comes home. Right now she needs to lead her son away from the disgusting shirt that she's hidden in the couch cushions.

"Come on, I'll go tuck you back in," she tells Hyunjin, patting him on the back. "And then I need to go drive noona home, okay?"

Winter makes a quick mental note to grab a jacket to cover herself before she gets into a car with Karina.

The early summer air is cool, but not cool enough to bring down the temperature of Winter's body. Out in the street and on the way to the car, Winter keeps replaying that horrible dread that swept over her when Hyunjin had almost barged in on them. What if her son had walked in just a few minutes earlier? He would've seen Winter with her pants shamelessly around her ankles with Karina kneeled in front of her cock.

Hyunjin would need so much therapy, for years, after that.

Yeji would probably call the police or some shit if she ever caught wind of this.

Winter shivers, horrified by the choices that she's been making as of late.

Boundaries.

Winter reminds herself that she must set boundaries.

Winter stops in stride and spins around to face Karina, who's following behind her. "Okay, w-we really can't do anything like this again, okay? That was too close a-and we shouldn't be doing anything anyways."

She expects Karina to react the same way. It must've been scary for her too, almost being caught. Instead, the younger girl laughs. She giggles cutely, hiding her gummy smile behind her hand.

Winter's almost scared to ask, but she does anyway. "What's so funny?"

Karina smirks. "I'm sure you'll be telling me the exact same thing next week."

As Karina walks past the older woman to get to the passenger door, Winter pales.

The audacity of this teenager is absolutely…infuriating.

And even more so when Winter knows that Karina is probably right.