Akane leaned back against the door as soon as it closed, arms crossed over her chest, hazel eyes darting everywhere except his face.
"Th-This better be fast, okay?" she muttered, voice shaky despite the attempt at bravado. "If anyone finds us—"
"No one will," Rin said calmly, stepping closer. He reached for the hem of her uniform blouse without formality. "Sorry again for the inconvenience. You're a life saver."
She stiffened but didn't stop him.
The buttons came undone one by one, his fingers steady and efficient. The fabric parted, revealing smooth skin and the simple white bra beneath. He slid the blouse off her shoulders and let it drop to the floor.
Akane's breathing hitched; the rise and fall of her chest drew his attention to the way the bra cupped her breasts; plump and soft, a generous handful that strained slightly against the cotton.
Rin hooked his fingers under the bra's front clasp and flicked it open. The cups fell away, and her breasts spilled free; pale and rounded, tipped with small pink nipples that tightened instantly in the cool air.
They were heavier than he'd expected, swaying gently with her quickened breaths.
Then a soft chime sounded in his mind.
«Report. Lewd meter increased by 2%. Current level: 54%»
Rin exhaled through his nose, a quiet swearword slipping out. "Damn it… only two percent?"
Akane's eyes widened at the muttered words, but before she could ask, he leaned in.
His mouth closed over her left breast, warm and wet, lips sealing around the nipple.
He sucked firmly, drawing the soft peak deep into his mouth, his tongue pressing flat against it in slow, deliberate strokes.
The texture of her skin was smooth and faintly salty; the weight of her breast filled his palm as he cupped it from below, rubbing and squashing it like dough—his thumb brushing the base.
Akane's back arched involuntarily.
A sharp gasp escaped her, "Ecchi…" hands flying to his shoulders. Whether to push or pull, she hadn't decided.
But inside her head, a frantic squeak echoed: 'I love you, Rin! Suck me harder!' Although, out loud, her voice cracked. "A-Aren't you done yet, damn perv?!"
Rin winced, interpreting the protest literally. To him, she sounded impatient, perhaps close to telling him to stop.
'Ah, I forgot.' He worried, 'This kind of thing is normally unacceptable. But she's willing to help me out. I better hurry!'
He didn't want to risk refusal. Not when the meter was still so low. So he doubled down immediately.
His teeth grazed the nipple lightly, then closed just enough to create a sharp tug.
He sucked and slurped harder, his cheeks hollowing, his tongue flicking rapidly over the sensitive nipple while his hand kneaded the other breast, rolling its nipple between his finger and thumb.
The wet sounds of his mouth filled the small room—slurps and soft pops each time he pulled back slightly before diving in again.
He then switched sides, giving the right breast the same intense treatment, his lips almost swollen from the added pressure, but his tongue was relentless.
Akane's knees buckled. "More… more, kono sukebe."
She clutched his hair now, fingers tangling in the deep blue strands. Her thighs pressed together, hips shifting restlessly.
A low whine built in her throat, muffled behind clenched teeth. Heat pooled low in her belly, coiling tighter with every pull of his mouth, like soft energy.
She was climbing fast, embarrassingly so, that the edge was already shimmering close.
Rin felt her body tense in that tell-tale way; her muscles locking, her breath coming in short, desperate bursts.
She was about to cum from everything. But…
…Rin suddenly released her nipple with a soft, wet sound and straightened up, wiping his mouth with the back of his hand.
Another chime.
«Notification: Lewd meter has been restored to 100%. Power level is currently not under threat»
He allowed himself a small, satisfied smile. "Perfect."
Akane stared at him puzzled, her chest heaving, her nipples glistening and flushed dark pink from all his attention. Her eyes were somewhat glassy, and her lips parted as she tried to catch her breath.
Rin picked up her blouse from the floor and held it out. "Thanks a bunch, Akane. I'll definitely pay you back soon."
Afterwards, he turned toward the door.
But!
Her hand shot out and grabbed his wrist; it was trembling, but resolved.
"…Then… I need my payment now..."
Her voice was low, husky, and nothing like the sharp tone from moments ago.
She kept his gaze while her free hand moved to her belt, unbuckling it with clumsy urgency. The button popped, zipper rasped down, and she shoved her denim pants past her hips.
They pooled at her ankles, revealing simple cotton panties printed with tiny white bunnies on pale pink fabric; cute, unexpected, and utterly soaked at the center.
Akane's face burned scarlet, but her expression had shifted; her eyes were half-lidded, her lips swollen from her biting them, her breath coming in visible pants.
She looked totally wrecked and hungry all at once.
Rin, however, looked a little astonished. "Uhm. I know I did say I'll pay you back and all, but I didn't actually think it wa—"
"D-Don't get any funny ideas!" she snapped, voice cracking again. "It's because you were s-s-s-sucking too hard, baka!"
Rin wearily glanced at the clock on his phone; the former lecture was as good as lost. But fifteen minutes until the next lecture.
More or less, enough time if they hurried.
"Well," he said evenly, "I did say I'd pay you back. Anyway, let's make it quick before class."
He stepped closer, unbuckling his own belt. The zipper came down, and he freed himself; already half-hard from the earlier intensity, cock thick and warm against his palm.
Akane's gaze dropped immediately.
Then she swallowed, and dropped to her knees without being asked, the concrete cool against her skin.
Her hands wrapped around him carefully, as if testing the weight and the heat it radiated. A bead of precum glistened at the tip as she squeezed lightly; she leaned forward and licked it away with a hesitant swipe of her tongue.
Rin watched her carefully, as an internal, dry thought surfaced: 'Eh? Was Akane a pervert all along? You think you know someone…'
He then exhaled quietly.
"Haahhh, what a pain," he muttered, half-pouting despite himself.
He'd planned to finish fast and leave, but the sight of her on her knees—breasts still bare and marked from his mouth, bunny panties clinging damply between her thighs—stirred more interest than he wanted to admit.
This would be the first time he would have sex with her. Previously, it was just simple molesting and sexual harassment that the lewd meter demanded for, on short notice.