Behind the Front Door
Kim Ji-soo walked down an unfamiliar street with a shopping bag swinging from one hand. 'Seon-ah… I hope she's okay.' Recalling the precarious state Seon-ah had shown at the academy that day, Kim Ji-soo let out a deep sigh.
Lee Seon-ah, who had been forcibly stripped of her uniform in front of the entire class, humiliated while completely naked, and then forced to attend every lesson with a massive dildo buried inside her pussy—one so large it seemed impossible for it to fit. The more Kim Ji-soo thought about her, the tighter her chest squeezed with worry. Those eyes that had lost their usual spark and grown hazy, that waist that twitched and flinched even when she was standing still—anyone could tell at a glance that something was seriously wrong.
'…It has to be something Cha Eun-jung did to her.'
Otherwise, there was no way that kind, innocent girl could have turned into such a lewd, filthy rag. Kim Ji-soo pictured the old Seon-ah—the one who would blush bright red and flinch in surprise whenever their hands accidentally brushed while moving supplies—and a dazed smile crept across her lips as she stared vacantly into the air. A passing pedestrian flinched at the sight of her and quickly stepped aside, but Kim Ji-soo, lost deep in her fantasies, didn't notice at all.
'I have to save her. …Right now I'm not strong enough to face Cha Eun-jung, but if I can slowly convince Seon-ah behind her back and bring her back to how she used to be, there's still a chance.'
If she succeeded in restoring Seon-ah to her pure, former self, then the person standing by her side wouldn't be Cha Eun-jung, but rather…
Kim Ji-soo let out a soft "Hehe~" and quickened her steps with a much lighter gait.
"Mmm, this should be the place…"
After comparing the map on her phone with the house in front of her one more time, Kim Ji-soo pressed the doorbell firmly. Ding-dong—
'Seon-ah's going to be so surprised, right?'
She adjusted her large round glasses for no particular reason and fidgeted with the hand holding the shopping bag while she waited. Soon, Seon-ah's voice came from inside.
"…Class president?"
"Ah, Seon-ah. You looked like you were in really bad shape at school today, so I came to check on you… Could you open the door?"
With a slow creeeak, the large front door opened just a crack. Kim Ji-soo, excited at the thought of seeing the inside of Seon-ah's house, grabbed the handle and pulled—but the door, held firmly from the inside, didn't budge an inch.
"Sorry. My house is a total mess right now…"
Only Seon-ah's face was visible through the narrow gap. Her cheeks were drenched in sweat, with messy strands of dark brown hair clinging to them. Her face was flushed bright red, and she was breathing in short, ragged gasps.
"What were you doing in there? You're sweating so much."
"Uh… I was just, um, working out…"
"Oh right, you love exercising, don't you? You told me about it before, so I remembered."
"Y-yeah. So just a second ago— hiiit…"
"…?"
Kim Ji-soo tilted her head in confusion as Seon-ah suddenly ducked her head down with a strange slap sound and let out an odd noise.
"What's wrong? Are you hurt somewhere?"
"Ah, n-no… huuht… I-it's nothing… just… muscle pain…!"
Through the short hair that had slipped down the side of her neck, Kim Ji-soo could see Seon-ah's trembling nape. Her gaze locked onto that spot and refused to move. Even though it was supposedly just muscle pain, her friend's appearance looked so unbearably erotic that Kim Ji-soo unconsciously swallowed the saliva that had pooled thickly in her mouth.
'No, I can't. If I act like this, how am I any different from those perverted girls in our class?'
Kim Ji-soo shook her head vigorously, trying to chase away the lewd thoughts.
"Seon-ah. If it's really bad, want me to massage it for you? I know how to give massages."
"N-no, it's fine… If I just leave it alone for a bit, it'll get better…"
Seon-ah's eyes were half-lidded as her body shivered, and she let out a hot, trembling sigh.
"And… at school… you don't… have to worry about me…"
"But you looked like you were struggling so much…"
"I'm f-fine— huuuuuk…!"
"S-Seon-ah?"
"Um… huuht, just… get to the point… quickly, please…♡"
"O-okay…"
Seon-ah's body began to rock back and forth as she urged her on with a pitiful, needy voice. There was something strangely seductive in that tone, and Kim Ji-soo's face flushed crimson.
"So… you looked like you were having a really hard time today, so I brought these from home for you…"
The shopping bag was shyly held out in front of Seon-ah. Inside were a limited-edition cookie set from a bakery Kim Ji-soo really liked, along with some healthy herbal tonic she'd secretly taken from her father's drawer.
"These cookies aren't too sweet and they're really delicious… I thought you'd like them too. And the stuff next to them is apparently extracted from some medicinal herbs… They say it's really good for your body. Make sure you drink it, okay?"
Seon-ah's rocking body gradually came to a stop as she quietly looked down at the shopping bag. Then her gaze lifted back to Kim Ji-soo—and it wasn't the cloudy, hazy look she'd shown just moments ago. It was the clear, pure eyes that Kim Ji-soo remembered from the past.
"Ah, y-yeah… …Thank you, class president!"
Creeeeak— The front door, which had only shown Seon-ah's face, opened a little wider, and her hand slipped out from inside.
"Ah…"
As Kim Ji-soo handed over the shopping bag, her eyes caught the sight of Seon-ah's sweat-glistening neck and, below it… the enormous breasts wrapped in black lingerie. The lingerie was designed to blatantly display her plump, swollen nipples—as if inviting someone to look. It was an incredibly lewd outfit. Kim Ji-soo, who still wasn't used to anything erotic and could barely make eye contact with Seon-ah even when she was in her short school uniform, found the sight utterly shocking.
When Kim Ji-soo hurriedly turned her head away, Seon-ah quickly snatched the bag and pulled the door tightly shut again to hide her body.
"U-um…"
"I'll head out now. Get some good rest…!"
Kim Ji-soo fled across the yard with her face burning red, desperately trying to burn the image of Seon-ah's lingerie and the exposed nipples into her memory.
"Is she gone?"
"…Yeah."
I gently closed the front door while feeling the dildo that was relentlessly pressing and rubbing against my cervix. Haa… That took ten years off my life. I had somehow managed to hide the way Han-na had suddenly shoved the dildo into me from behind and was lightly thrusting into my waist, but the lingerie she'd seen at the end… I didn't even get a chance to explain it. Maybe if I explain properly next time, she'll understand?
…Anyway, there are some things I need to complain about.
"Kim Han-na. A friend was right there—how could you suddenly shove a dildo in like that…? Do you have any idea how hard it was to act normal?"
"It's my bitch's pussy. I can use it however I want. What's the problem?"
Han-na looked at me with a perfectly confident expression, as if she saw nothing wrong with it.
"…Ugh. Still, if we get caught…"
"You don't like it? Then I'll stop."
"Ah, no! That's not what I meant…"
When Han-na tried to pull the dildo out, I thrust my hips back hard—swallowing it all the way to the base so it couldn't escape—then slowly rubbed my ass against her lower belly. The firm head of the dildo ground against the back of my womb, sending fresh waves of spine-tingling pleasure swirling through my head.
"By the way… what was that about me looking like I was in bad shape at school?"
"It's nothing… I've been walking around all day with a dildo in my… pussy… so maybe that's why."
"…I trust Eun-jung to handle things properly, but you need to be careful not to get caught too. And if it's too hard, tell me."
"Okay… Don't worry too much."
I couldn't bring myself to tell Han-na, who was hugging me tightly from behind and nibbling at my neck, about everything that was happening to me in class. …Still, I won't be able to keep hiding it forever. What should I do?
"…By the way, were you pretty close with her?"
"Hmm… We sometimes helped each other with things the teacher asked us to do. …Why?"
"Nothing. She just came all the way to your house carrying that stuff."
"Yeah… Even I'm surprised. I guess she was really worried about me."
"Hmmm…"
Han-na furrowed one eyebrow in clear displeasure, then changed the subject and let go of me.
"Lee Seon-ah. Let's go buy a choker together soon."
"A choker…? You want to wear accessories too?"
"No, not for me."
Han-na's hand gently stroked along the curve of my neck.
"I want to put a collar on you. You can't exactly walk around wearing a dog collar in public."
"…Ah."
The thought of proudly wearing a collar in front of others—openly declaring that I was Han-na's bitch—made my body tremble uncontrollably as fresh juices dripped down my thighs.
"Alright then. The intruder is gone… Let's go finish our sex practice."
"Yes…!"
I set the shopping bag the class president had given me on the floor and surrendered my body to Han-na's hands as she lifted me by the thighs. Held in her arms with my legs wrapped tightly around her waist, my pussy still impaled on the dildo and getting pounded with every step, I was carried toward the bedroom filled with the thick scent of sex and wetness. That night, I didn't fall asleep until late into the early morning.