Sinner System

"Hey, Kai," Aria greeted me as I entered the bedroom, before patting the spot on the bed beside her.

I walked over and flopped down next to her, before she rolled onto me and snuggled up, nomming on my earlobe with a hum.

"Heh, that tickles. So, how was your day?" I replied with a smile, patting her head softly and messing up her hair a bit.

"Pretty good, it’s nice to have a totally lazy day every now and then. Probably shouldn’t make a habit out of it, though," She grinned sheepishly, before kissing my cheek.

"Yeah, think I’m inclined to agree, it’ll be hard to bounce back if we get too used to it. By the way, did something happen with Luxuria? Why did you withdraw her?" I inquired curiously.

"Well, she’s been moaning and gasping in the rec room all day, so I told her to pick up where she left off tomorrow. She gave in after I reasoned that the wait will help build more anticipation. I also told her to stop walking out naked all the time," She replied with a sigh.

Huh? Weird, my passive lie detection is going off a bit. I don’t think it’s an outright lie, but she might be hiding something. Hm, guess I’ll play along...

"Fair enough. Surprised you managed to convince her to stop though, she seemed pretty intent to keep going."

"Heh, yeah, I didn’t say it was easy. Now, then...," She trailed off, before sitting up and hopping onto me with a smirk, her hands on my chest as she straddled me.

"Whatcha upto to there?" I smiled, as I placed my hands on her hips, giving her a squeeze.

"Well, for starters, let’s get these clothes off, shall we?" She suggested, slipping her hands under my t-shirt and tracing my torso with her fingertips.

"Don’t have to tell me twice," I responded without hesitation, raising my arms as she tugged on my t-shirt, pulling it off before tossing it aside.

I tightened my grasp on her hips as I sat up, playfully bumping the tip of my nose against hers, before kissing her softly, as she ran her hands down my back.

I pulled her top off, setting it aside before cupping her right breast and kneading it firmly in my grasp, as I placed my other hand on her left cheek, gently caressing her face as I kissed her.

She slid her hands onto my chest, before pushing me down onto the mattress, leaning down and kissing my neck, as she traced a fingertip across my jaw.

She planted a trail of kisses down my chest, before making herself comfortable between my legs as she began to tug my pants off, slipping them off my legs and running her hands along my thighs teasingly.

"Seems someone’s feeling especially enthusiastic tonight, I’m liking the extra attention," I remarked with a slight shudder, as she met my gaze and seductively batted her eyes at me.

"Yeah, I suppose you could say that...I’ve got a bit of a surprise for you," She whispered alluringly.

"Oh? What is it?" I responded curiously, trembling as she twirled her fingertip around the tip of my cock teasingly, my toes curling as I inadvertently arched my back slightly.

"Well...," She trailed off, before chanting, "[Emerge, Apostle of Lust: Luxuria]."

Huh?

"<Woah, you really did summon me! Wow...been ages since I saw Daddy’s cock, it looks even more tantalizing than before>," Remarked Luxuria as she appeared to the left, gulping as she stared intently at me.

"Wait, what’s-...?" I began in bewilderment.

"I thought I’d try letting her watch us. The thought crossed my mind a few days ago, and after some careful consideration, I deduced that I found the idea appealing. And, well...having her here right now, I am feeling a bit extra turned on, this is pretty hot," Smirked Aria, before adding, "Though, before we proceed, are you comfortable with this, Kai?"

Huh, so this is what she was hiding, that explains why my lie detection was going off. Glad I played along.

"Well, this is certainly unexpected, but I’m not opposed to it. If you really want this, then I’ve got no objections," I replied, taking a brief pause to mull it over.

"<Sweet! Ohh, this is so fucking hot, I’m already dripping with anticipation...literally>!" Exclaimed Luxuria excitedly, spreading her legs.

"Now, remember what we talked about. Hands to yourself, no touching, all you’re going to do is watch. Am I clear?" Inquired Aria, as she took hold of Luxuria’s chin and tilted her head up slightly, meeting her gaze.

"<Ye...yes, Mommy>," Nodded Luxuria with a gulp.

"Uh...what?" Responded Aria in bemusement.

"<Woah, that just slipped out. It just felt right...yeah, think I’d like to call you Mommy from now on>."

"I, uh...okay, that’s kinda making me cringe, but sure, go ahead. Though, maybe not in public."

What is happening right now?

"<Okay, Mommy>!"

"Alright...now, where was I?" Smirked Aria, meeting my gaze as she slowly began to lower her head, her hand steadily pumping up and down as she tightened her grip a bit.

She picked up the pace, adding a twisting motion as she stuck out her tongue, twirling it around the tip, a moan ringing out as Luxuria leaned back and began touching herself, breathing heavily as she watched us.

I closed my eyes and let out a slight gasp of pleasure as Aria began bobbing her head up and down, the warmth of her mouth enveloping my length as she flicked her tongue around teasingly.

W-Woah, she’s really going at it! A-At this rate, I won’t last long, I-...!

"Easy there, we’re only just getting started, Kai. This is barely even the warm-up...we’ve got the whole night ahead of us, and I fully intent to make use of it," Whispered Aria as she pulled back, before teasingly tracing a fingertip up and down along the length.

"<This is so fucking hot...>!" Muttered Luxuria, masturbating furiously as she continued to watch...