#21 Venting, Exposure Training (4)
“Please... huh? If the cops show up, you’ll be in trouble too... If we’re inside the house, you can do whatever you want, so not here...”
Seohyun begged and pleaded for him not to make her do that, but Yuchan callously ignored her.
“Come to think of it, you got semen injected into your womb in Nayae’s place, didn’t you, Seohyun?”
“Huh? Uh... yeah...”
Caught off guard by the sudden topic, Seohyun tilted her head, but she still listened closely. After all, Yuchan was the only one who could lighten her punishment right now.
“I’ll give you a chance for being so loyal to your friend. I’ll call Nayae here now—want her to do it instead?”
If she masturbated with the dildo stuck to the window, not only her ass but her pussy gripping it would be fully visible from the street. She’d be exposing her most humiliating sight to complete strangers, broadcasting it far and wide. That transcendent shame bordered on terror.
Seohyun instinctively pictured Nayae. She didn’t want to admit it, but Nayae had been thoroughly conditioned by Yuchan. Even if she did the same act, she’d feel far less humiliation than Seohyun. Hell, she might even shake her ass excitedly like she had at the start of her torments.
“N-Nayae... instead...?”
Just as expected, she hesitated, mumbling the name. Yuchan was satisfied. Even loyal Seohyun balked at the idea, confirming how repulsive the act was—like hesitating over a pact with the devil.
“Of course, if Nayae comes, I’d stick the dildo outside the car and make her do it naked. Black Knight penalty, you know.”
“Kuh...”
“I figured you’d agree right away, but surprisingly hesitant. You weren’t actually thinking of making her do it, were you?”
“Shut up!”
She knew he was just toying with her, but the fact that his suggestion shook her so much disgusted her. Why had she endured all his abuse? To keep innocent bystanders like Nayae out of it, right?
“Fine... I’ll do it!”
In a fit of anger, Seohyun yelled and glared at the dildo. Mid-April meant longer days, and it was still bright outside. She might really be seen. Biting her lip hard, she stretched out lengthwise across the back seat. At least burying her upper body deep enough hid her face—that was her only consolation. A creeping humiliation brought on a headache.
Seohyun grabbed the soft dildo’s tip and rubbed it against her pussy.
“Better shove it in deep enough that your ass sticks to the window. That way you’ll finish faster.”
Ignoring Yuchan’s unnecessary advice, she silently pushed the massive dildo into her pussy. Like hell she’d do it that far—she’d be completely exposed. He’d fingered her a few times, so slipping the tip in wasn’t too hard. Her slightly dry labia rubbed against it, creating friction, but that was all.
In a cat-stretch pose, she slowly backed her ass onto it. As her folds parted, she took it halfway and began rocking her hips back and forth.
Yuchan wouldn’t show mercy until she came fully. Better to finish quick and dress before anyone saw. A flimsy plan, but it was all she had.
“So you’re using your front hole after all? Makes sense—without lube, that big thing’s too much for your underdeveloped ass.”
“Sorry, but... shut up...”
Responding flatly to his taunt, Seohyun pressed her slender waist closer. Even in this situation, her body was honest. The thick dildo inside stimulated every nerve, and her lacking wetness began to build.
“Kuh... hng...”
Her lower belly started to ache with sharp stabs. Her nipples hardened against the bra fabric.
“Now that you’re really going at it—if it slips out or you try hiding, that’s one extra round. Got it?”
“Y-Yeah...”
She had no intention of repeating this madness once, let alone twice. Keeping his words in mind, Seohyun pushed deeper.
-Drip...
“Haht... ♥”
She felt her juices trickling down the angled dildo. The tiny spark of pleasure spread, and oddly, she felt relieved. She might reach climax faster than expected.
“From outside, your bald pussy’s on full display, huh? Even your loosened back hole twitching in pleasure—it’s all visible.”
As Seohyun’s focus shifted from shame to pleasure, Yuchan reminded her of reality. No escapism allowed—she was being punished.
“Your shiny juice-coated dildo with pink insides peeking out, your waist bending—it’s all crystal clear.”
His novel-like, vulgar description turned her face pale. Was someone watching already? She wanted to check behind her, but that might show her face to a witness. Cowed by grim imagination, Seohyun felt a strange sensation blooming in her gut.
“Haaang... ♥”
It was like awakening to a pleasure she’d never known before—dense, intimate, from some separate organ apart from her usual ones. The unfamiliar, dizzying thrill made her shudder. Not just sweet honey, but laced with poison, triggering instinctive revulsion.
But after a few hip wiggles, she realized: she couldn’t cum from this depth. The dildo, bought to train Nayae’s throat, was ultra-soft. Without Yuchan’s rigid hardness, even at this size, teasing her front hole would take at least an hour to climax.
Anxiety crept onto Seohyun’s face. Thirty minutes gone. If 100 was climax, she was stuck at 60-70, blocked by an invisible ceiling of limited pleasure.
“Ngh... why can’t I cum...”
Sweat beaded on her forehead as she thrust her ass out the window, wiggling desperately. She’d forgotten how pathetic she looked. No matter how big, shallow teasing wouldn’t do it. Plus, her tension dulled her sensitivity—like erectile dysfunction from psychological stress; she was in climax-failure mode.
“Better hurry or it’s risky. That homeless guy’s been eyeing the car for a while.”
“What? No!”
Yuchan’s lie spiced up the fun. Seohyun slammed her head down like an explosion rocked her. Yet her ass clung to the dildo, grinding slowly. The front windshield had legal tints for safe driving, but rear seats and windows? Jet-black, funeral-limo style—no outside view in. She should be safe even from inside, but panicked Seohyun wasn’t thinking straight. No need to tell her; her ignorance amplified the shame and fear.
“Gotta move faster.”
“Hng... hng... ♥”
“Looking like that, and still gushing enough to make wet sounds. Hurry up—I’m hungry.”
“Wait, damn it...”
Her ass inched toward the window. Her hesitant hips picked up speed.
“Haaang...”
Finally, the dildo’s head nudged her depths. Seohyun let out an unwitting moan. Tension, shame, and the thrill of possible exposure exploded her pent-up lust. Shame hormones twisted into pure ecstasy.
“Ha... haht...? Ha... what’s... this...?”
Pulling that teasing, dangerous thread in her gut triggered rigid bliss. The car filled with her heated breaths and sweet sweat. Lost in trance, she jolted at the cold on her ass. The half-inserted dildo now filled her pussy completely, her plump cheeks pressing the window. Her cervix throbbed under the silicone weight. Splashing juices on the seat rippled her mind.
“Feels good masturbating where you might be seen?”
Her answer came not from Seohyun, but her newly awakened slutty instincts.
“Ah... yeah... hng... good... this is weird... ♥ Why does it feel...?”
“Splashing your pussy juice all over someone else’s window.”
His mockery, which she’d normally block out, now fueled her fire. She was exposing her pussy outside the car, masturbating. The realization swelled.
“Once... this ends... haht... I’ll never... do this again... ♥”
“Can’t let that happen. You’re not cooked yet.”
Seohyun didn’t hear. Her soul was gone, lost to pleasure.
“C-Coming... kyuuuk... ♥”
Biting her teeth to muffle, her hips convulsed. Floodgates opened, juices sloshing out. Pussy-melting bliss. Liberation from exposure risk. Yuchan’s pitiful gaze. It all burst like fireworks in her mind.
“Haa... haa... eeeek... ♥”
To savor the peak, she swallowed the long dildo fully, grinding her ass wildly on the window. Even tinted, her silhouette might show. Yuchan chuckled, watching.
-Pop!
Her ass slid down the window. Her tight grip made the purple dildo lose suction and fall.
“Haa... haa...”
Staring blankly at Yuchan, her ass twitching sporadically, Seohyun watched him gently start the car.
They grabbed simple food from the McDonald’s drive-thru and ate in the car. They arrived safely at a nearby park. Then, the minor commotion.
“What the hell! You can’t see shit from outside!”
“Did I forget to mention? I value privacy a lot, so the back seats are tinted solid.”
The moment they stepped out, Seohyun bolted to the back window and froze in shock. Then, like a boss with low HP unleashing a new pattern, she exploded.
“You didn’t say that! You didn’t! Not once, not a bit, not even this much!”
“Good thing you know now. Otherwise, every passerby would’ve gotten your exposure masturbation show. You shook your hips so hard at the end the car was rocking.”
Pointing out her behavior, Seohyun clenched her fists, arms straight at her thighs—like an angry chick threatening foes.
“Kinda cute when you’re mad. Thought you were seen and went wild.”
“.....”
Half shame, half rage, Seohyun puffed her cheeks, fuming. Not from air, but gritted teeth. Yujin might pull that reaction. Anyway, for the next step, Yuchan issued a new mission.
“Back to the car—strip again.”
“Again? You really love this stale shit, huh.”
She’d recovered her spunk during the short meal, sneering defiantly. Seeing it, Yuchan mentally upped the mission’s difficulty by a notch.