A/N: This is split into two, due to the overall word length, and I had to cut about 20% of the original to fit within M rating.

EDIT 10/17/22: I've added a few more scenes since the split is hugely disproportionate between parts 1 and 2.

Chapter 7: Quench, Part I

This was a new meeting place.

Instead of the old storefront, it was a dingy public restroom, nestled in the trees surrounding the station. The entrance had both a rusty "Out of Order" sign planted in the middle as well as dim neon lettering for nighttime visibility, complimenting the pink hue in the sky.

The area was extra quiet tonight, as everybody gathered to view the fireworks at the island center, on the other side of the rails. Thankfully Amodar switched her shift to the pre-event patrol, so she can leave work just before the show. Just in time to make it to her appointment, but not enough to change clothes at HQ.

Entering the abandoned bathroom outlet, it was cleaner than Light expected, and there was one distinct stall from the rest. It was at the back of the building, as if it was a corner stall.

Legs were jutting out from the wall and fitted with stockings. They were pinned upwards and spread apart, the straps around the ankle, slack enough for the feet to slip through. The fabric was sheer enough to see her nails were painted, a hint of pale rosy color peeping through the dark stocking. Peering closer, it appeared the wall was halved across with a circle cut in the middle , so someone could enter in and out quickly. When folded in position, it would expose the lower half of the body. There was a small curtain covering the rest of the space, shielding peepers from viewing more than necessary.

Brushing her hand along the wall to sate her curiosity, her fingers drew across a calf, then moved downwards. Gently cupping both thighs with her hands, Light kneaded the area, eyesight focusing on the juncture.

She must've shaved or waxed recently, recalling previous sessions that her dick rubbed against coarse hair.

Taking her dick out, she rubbed her tip on the bare mound between the legs, shifting to erratic bumps against the slit below as she pumped with her hand. With her other hand, fingers spread her open. Seeing drops starting to pool the entrance, Light's dick was soon hard and ready.

Taking her hand off the mound, she reached for a small foil packet. Light squeezed some lube from the container on her wrapped dick and placed it back on the small ledge to the right. Stroking around her covered member, she used the excess and caressed the pink slit in front of her.

Slipping one finger in slowly, she drew it out and circled around the quivering hole. Feeling the hole tightly clenching over her fingers as she slid them out, circling around each lip. She reached back to her dick, rubbing along the slit. Light enjoyed the way the inner thighs twitched at the sensation, hearing a faint moan coming from the other side. She slowly slipped the tip in, sinking deeper as her dick was enveloped in velvety warmth.

Damn, this feels so good.

Light started off gently, lightly nudging her hips back and forth, gauging how the core was pulsing in arousal as she deepened her thrusting. A particularly tight squeeze around her dick caught her off-guard, stilling her motion for a few moments. Processing the sensation throughout her body, it coiled within her belly, lusting after more.

She gripped on flesh, hilting balls deep inside, undulating hips against soft focused her line of sight on the protruding clit, reddened from grinding on her member.

Instead of rubbing the clit, she brought one hand to her belly, slipping underneath the curtains to travel upwards. Her fingers traced across a flat stomach, brushing against a lump and a stiff tip in the middle. Realizing what it was, Light started caressing and gently squeezing on the nipple.

Etro, she's even about Serah's frame…

Teasing her nipple some more, she drew her dick out of her hole, braced between the slit and her belly, as she switched to rubbing the other breast, pinching that nipple.

Then she felt another hand over hers, guiding around a breast in circles, squeezing against her hand, having her cup the flesh underneath. She automatically bent fingers, holding flesh in her palm and expanded out. Stroking the shape, Light adjusted her grip, clamping the nipple between two of her fingers, keeping it in place while using the rest to caress the tit.

Light felt her hand being squeezed harder, her dick twitching as reddened lips humped along the area, getting off on the friction. Her face flushed as she was staring at the mound desperately grinding on her, getting wetter with every bump until she heard -

"More," a faint voice emitted as her hand was gripped tightly again. Oh, her voice got her hot and bothered, just like -

Light panted, her mind in a haze. Giving her one last squeeze, she withdrew her hand, sliding the fingertips across a flat stomach. It went past the curtain, and wrapped around her hips now with a thin sheen of sweat along the waist.

Back in position, she slipped in again, her dick savoring the warmth, along with the pulsing sensation. It seemed easier this round to sink all the way to the base, her fleshy tunnel acting like a sleeve for her dick as she pounded against the junction over and over again

Just pretend it's Serah.

Light went rougher, going deeper, as both hands pinned her thighs against the wall. Rutting hips against moist lips, and drew out, as more wetness clung onto the condom from being stretched and drilled. Sinking back, she continued, the wall creaking from the harsh pounding. Savoring the pleasure, Light was panting and groaning from the exertion, her dick seeking relief in her pretend-sister's tight hole.

"I don't want to only suck you off," A pitchy voice sounded from the audio, coupled with wet smacking noises, growing louder as the mic moved towards the source.

Hearing moaning in the background, the voice continued.

"I opened more options. Any position you want, as long as you fuck it with that big dick- Mmhm!"

Etro, she brought the mic to pick up the squelching noises.

"But, I get to ride you how I want." She panted deep into the mic.

"Raw."

The audio cut out.

Moaning as her hands gripped against plump cheeks, she hilted dick into nectar-laden core over and over, picking up speed. The coil in her belly winded tighter and tighter until -

Snap!

She stayed balls-deep inside, seed spurting into the tip of the condom. Holding still, eyes closed seeing white-hot light, everything else seemed muffled except the velvety flesh pulsing through the latex rubber. Using her thumb, Lightning slowly rubbed on the sensitive clit, enjoying hips shaking on hers. Pinching her fingers on the base, she let her dick fully slip out, before taking the rubber off and tossing it into the bin.

She watched those writhing legs slowly stop as she rested her weight on the ankle straps, hearing heavy breathing and low moans. Her fleshy folds, already pinkish and enlarged from arousal, was covered in juice.

Enticing.

She stepped forward, and helped her unstrap her legs from the wall, running her hands over stocking and skin. Light ended with a squeeze over cheeks, then she abruptly stepped away into the adjacent stall.

There was a hook with a piece of fabric dangling on the side of the stall as she pushed the stall door. Fully taking off her uniform skirt and inner compression liner, she grabbed the fabric from the hook and replaced it with her clothes.

Honoring their deal, Light sat on top of the lid, and wrapped the cloth around her eyes, tying a knot in the back of her head.

She made sure the knot was secured, and placed one hand on top of her thigh as she rapped her knuckle against the wall beside her twice. The signal was made, and Light waited.

I really can't see anything.

There was a long pause, then Light heard rattling noises from the previous stall. A sudden creak, then -

Thump!

Flitching from how loud whatever that was, she picked up on footsteps. Tracking the sound, the steps were light and padded further as they swung closer to where she was. The steps stopped somewhere between her and around the stall. Except Light didn't hear a sound that the stall door was moved.

Light noticed how her breaths projected in the stall while waiting; she was trying to guess when the next sound - the steps resumed. Even if she cannot see through the blindfold, she felt a shadow hovering over her as her fingers tensed from anticipation. She had to steady her breathing, the feeling of being overexposed temporarily having her anxious.

She flinched as she felt soft hands over her, caressing her skin to soothe her nerves. Light relaxed from the sensation, slouching back, as the hands moved to rub her thighs. She sucked in a breath as fingers splayed on both inner thighs, sending warm tingles to her abdomen. Her hands then gently placed pressure against skin, signaling Light to widen her legs apart.

Suddenly feeling a breeze on the tip, Light let out a groan, as something wet and warm flicked it, then the whole tip was enveloped, damp and hot.

Oh fuck!

The suction went down halfway, and clung on her as it moved to the tip and back down. Panting, her dick twitched as she heard hums and gasps in front of her as she was sucked off. Rolling her hips, having her dick thrust deeper into that wetness, hearing the sucking getting sloppier from the motion.

Light moaned as she felt a hand wrapped around her erection, halting her from bucking into that mouth. Hand still on her, Light felt the suction deepen, faster with every pump. She felt drool leaking down the underside as those lips eagerly took dick in and out.

O-Oh, she's sucking it deeper than the other times. Fuck, she's so eager to take it in again.

A short while later, Light was fully erect after having her dick sleeved from her favorite hole. Feeling her using her thighs as armrests, Light noticed increased pressure as that enticing mouth left her dick, sensing she stood up. She adjusted her legs from the absence, keeping them closer together.

This time, she felt flesh rubbing against both sides down her erection, and pressing on her lap, as she was straddled. Slouching further back, bringing her hips forward, she felt plump cheeks started to roll in a circular motion, continuing to press and grind against her, before the pressure lifted and slammed back on her lap. She felt fingers on her dick as it was being adjusted, the mound on top slowly rubbing lips on her.

Just like before, her pretend-sister's core felt hot on her member as she grinded on her, leaving more of her tacky nectar clinging on her dick. Suddenly her tip was pressed into wetness. Light uttered a low groan as her dick sinked into velvety walls, more intense, as she felt every pull and fleshy pulse. Steadying her as she continued rocking, Light's fingers traveled upwards until she hit them on bouncing mounds. Cupping the flesh, Light sensed another shake on her lap as she heard moaning, staying deep inside.

"Fuck," she moaned out loud, as hips on top of her slammed harder, her dick being worked over. It sent increasing twinges of arousal to her belly, building and building until Light felt the need to release the pressure.

Not letting up, trails of warm juice traveled down her shaft, adding to Light's pleasure.

"Damn, I'm… close," she gasped, hands still on her tits, massaging the stiff nipples.

Feeling her still in response, as if to dismount from her dick-

She bounced faster, her walls tightening and clenching, trying to milk her in a frenzy. As if to signal her walls wanted seed inside.

"H-hey!"

Light's hands gripped on her waist, attempting to push her off of her lap. She felt a set of hands on the top of her thighs, resisting against her push as her lips kept sliding on her meat, feeling even wetter as it was desperately clenching as a distraction.

"This wasn't the agreement!" Light leaned forward and pushed again, bracing herself to stand once she felt the weight move. But the coil in her belly was taut, any moment she was about to -

Hands wrapped around her face, as she felt her dick spurted out, but also sensed leaving that hot sleeve, as the weight on her lap dropped to the floor.

Standing up, Light realized her blindfold had been partially lifted from the movement. Pulling it away from her face, she was in shock at the sight before her.

Legs splayed out on her knees, lips exposed and dripping. Her seed landed around her backside, and some trailed on the floor. However once Light saw the band around her arm, she knew.

What the -

"Serah?!"

Cum spatters were around her cheeks, and a stray drip trailed down from her slit, as she ended on her hands and knees. Light saw her head slowly turned around, giving her a proper once-over.

Cowed, Serah's eyes instead looked at the floor.

Feeling self-conscious, Light covered herself with her hands, also averting her gaze from Serah's body. And of all their earlier activities. The texts, the previous sessions.

The feeling when she was riding on her, seeing that pussy squeeze and clench around her finger and cock…

It was her the whole time.

Furrowing her eyebrows, she managed to spit out, "Get- get dressed. We're going home."

"Light…"

"Now."

Light couldn't think if they were still in here - her mind would wander to their earlier activities. No, they were going to have a real long talk at home.

She heard Serah get up slowly, walking over to the earlier stall. The slam from the wall indicated to Light that she was inside and cleaning up.

Shit. I can't believe it's her.

Grabbing her clothes from the hook, she gently tucked in her cock within the liner shorts, making sure it wasn't too stained as she wore the skirt on top.

Briskly walking out, she went out the entrance and saw the sky was dark. Light could make out the station platform in the distance, full of passengers waiting for the trains.

The show must've finished now.

Taking out her phone, she called for a cab and confirmed the place of pickup. A deep sigh left her lips afterwards, before she walked back inside.

Just in time to see Serah emerging from the stall, her eyes widening in surprise at seeing Light standing at the entrance. She folded her arms around herself.

"Umm, I thought you left."

Her face neutral, Light replied with, "I ordered a cab. They'll be picking us up by the train station. We need to head there now."

"Light- "

"At home. Not here."

Turning back, Light pushed the door open, waiting for Serah to step out.

The door shut as Light got into the back seat, and the cab drove off to their place.

"You ladies enjoyed the fireworks?," The driver asked, tapering off from the charged tension wafting off from the passengers. He glanced at the uniform and didn't follow up any further when she met his stare on the rear view mirror.

"Sorry, we're a little tired." Serah said.

Huddled against the inside of the door, Light went back to staring out at the window. The drive home was in relative silence afterwards.

"Is this official business, Sergeant?"

Light walked towards the woman behind the counter. The café was almost empty, in the middle of transitioning the service shifts.

"Actually, I'm off-duty."

Pausing as she sat on the bar stool, arms folded on the counter, she continued, "How did you know?"

She followed her gaze towards her pauldron.

"Do they teach military ranks in bartending school?"

"Only the good ones."

Light gave a soft laugh, slightly shaking her head.

"I see they teach comedy too. But I'm not here for classes. My sister said she works here. Have you seen her?"

"Ahh, so you're Serah's sister! I should've realized from the hair. You two look really alike."

She perked up at the mention of her sister. So she was telling the truth.

"Is she here?"

The woman gave a few blinks, clearly confused.

"No, she just ended her shift about an hour ago. Did she not tell you? She said she was going dorm shopping."

"I see… how long has she been working for you… uh-'

'Lebreau. Call me Lebreau."

"Lebreau. Serah didn't exactly tell me when her shifts were."

"Well, that's a surprise."

Sitting up, Light gave her a look but didn't say anything else, waiting for her to continue.

"That is, Serah would always talk about her big sis - you - to everybody. And that you've been a bit busy with work."

"…Anything else?"

"Are you sure you're not on business?"

"No! No - Serah doesn't talk about her job much. I was curious on what she was doing."

Rearranging the bottles and bar assembly, Lebreau wiped the small bar counter as she said, "Oh, she mainly works on the register, serving orders, sometimes helping us prep the bar ingredients. Don't worry I know she's not old enough to be at the bar so all the work is in the kitchen in the back."

Sighing, Light focused on her hands.

"Anything else?"

Stopping in front of Light, giving her a once-over, she added, "Want a drink?"

Light returned to the window view, smattering of color in the sky from lit signs in the distance. Another sigh left her lips, pondering over how to approach things to be said, as her focus shifted to looking at the rear view mirror.

She saw eyes on her, quickly breaking contact, looking down.

Serah… why did it have to be you?