Stepsister Succubus Ch. 02

"It's... fucking great," Marc said with his own voice now soft from the strain, and he wasn't even doing anything beyond feeling up her cheeks.

"Mmm, I bet it is~ I can feel every arc of energy in your body~ I can feel your heart racing, and I can feel your emotions~ You wanna fill your stepsister's ass with your hot cum, don't you~? You wanna give me every drop while I suck down your energy, don't you Marc~? Or maybe you just like watching this perfect ass bouncing up and down, watching it jiggle~"

Her dirty talk was getting cruder, and her voice was gaining a slightly harsh edge of pleasure in it. Maybe she couldn't lose control of her drain, but her arousal? That was something else Marc would have to survive. After all, the first time they had sex she lost enough control she revealed her true form to him.

He wanted to try and retort, call her out for her porno-grade slut-speak, but it just felt too damn good to string words together, especially once she started moving harder, pressing her knees against his legs.

Her hair flicked with her motions, the glossy strands glinting as they caught the light, Sophia briefly sitting upwards to reach behind and lift her hair up and out before letting it fall, the tips of a number of strands bouncing repeatedly off her lower cheeks.

Then, she paused her movements with a loud gasp, and rotated around on his dick, repositioning her legs, making Marc gasp and groan in surprise at the sudden and rather intense twisting sensation applied to his shaft, until she was straddling his hips and facing him, depriving him of the wondrous sight of her bouncing ass, but now letting him face her directly. Her eyes had an intensity to them, even if they were human and not their demonic red.

He recalled those features, her horns, her tail, her wings, everything that showed she wasn't human. And he could easily see them here, the expression she wore so aroused and lustful and beguiling, it was easy to believe she was a demon of temptation.

Perhaps easier than the fact she was his stepsister.

Her hands slid up his torso and came to rest on his chest, fingers splayed against his pecs. They were warm. She was warm, like she'd carried some of the hellfire of her heritage inside of her, or something.

She looked into his eyes, and Marc almost believed she was hypnotising him again, using that charm like she had when she made him go to sleep. But he didn't feel the tendrils of her influence snaking across his mind like then. No, her eyes simply had that effect on him.

"Ready for the finale bro~?" she asked him, her hair hanging down and framing both her face and his.

"Y-Yeah," he answered, earning a smile from her. She chuckled, and once more she began to move, her hips rising and falling, slowly at first, much like how she first started, though she was much quicker to get to speed than before, that slapping filling the bedroom yet again.

Marc prayed that 'glamour' or whatever she called it worked, though God probably wasn't answering this one. Satan, maybe?

His thoughts about those things were banished when she moaned above him, a sweet sound that commanded his attention.

What also commanded his attention is the occasional moments when she stopped, only to grind against his lap in a circular motion, pushing her curvaceous ass into the contours of his crotch and thighs, squishing against his body in all the best ways and stirring up his cock inside her hungry ass.

But between these moments of luxurious grinding, she returned to that vigorous bouncing, neither of them able to suppress their moans, though Sophia sounded far less strained and 'weakened' by the pleasure than Marc did.

Another added benefit of her new position was now Marc could see her breasts bouncing as she rode him, her globes as enticing as ever.

He couldn't help it, and reached up to cup her breasts in his hands, rolling his thumbs over her nipples and groping gentle, making her sigh in satisfaction.

"That's it, squeeze your stepsis' perfect fucking titties~" she encouraged. "Don't they feel good~? Just as good as when I wrapped them around your dick, right~?"

"Y-yeah," was all he could say, lacking the energy or the will to try and return her banter.

He rolled her nipples beneath his thumbs, and massaged her breasts with a desirous need, but even with them hanging before his face, he couldn't help but look back to her rising and falling ass, and soon his hands drifted back down there too, cupping her glutes and giving them a good squeeze as he moved his hands with her bouncing.

"You like my ass, huh~? My perfect fucking round ass~?"

He nodded, and she let out a seductive chortle.

"I bet you like every part of me~ Every second you're with me like this, you're drawn in to me~ You can't escape me, like gravity~ You want to feel every part of me~ The longer you're fucking me, the harder it is to get away... until you don't want to anymore~ You want to give in to me, to give all but your soul and you're life to me... but you want to spend your life with me, Stepbrother~"

Her dirty talk had taken a turn, and yet he couldn't feel anything but beguiled. If he could spend a life with her, and this was what he got out of it... then giving her a literal meal of his body every now and then seemed like a decent trade.

And as soon as he thought of that, he felt the tugging sensation of her drain, stronger this time than before, though not quite as it was with that kiss.

Auras formed around them, swirling eddies in his being drawn into her skin where they met, as he felt the wending passage of his energy from his core flow up through his cock into her ass. Whenever he saw his member, he could see it wreathed in a faint glow with the helical currents twisting up into her rear, small motes with trails leeching off of his skin and being absorbed into the aura that veiled her.

She bowed over him now, her hair encapsulating the peripherals of his vision to his sides, leaving only her face or the obscene copulation to be seen.

He was lost in her beauty, in her lust, and he began sliding his hands up her back, fingers trailing along her vertebrae, feeling how they flexed with her graceful yet debauched movements. And he felt her slide a hand up from his torso to cup his cheek, forcing him to look into her eyes.

A faint red glow appeared in the brown orbs, and she opened her mouth, starting her endless inhale. The back of her throat began to glow with a pinkish light, and his jaw parted involuntarily. Another flow of energy branched off that intangible 'core' just below his sternum, and he felt it flowing up through his throat, and then he saw the start of the stream of vaporous light cascade upwards, drawn into her gullet. It wasn't as strong as the kiss from... yesterday, he eventually worked out, Marc starting to lose track of time, though less than twenty-four hours.

It was surreal how fast things had moved... but this was more surreal still, and having two points of drain at once was still intense, atop of the pleasure that came from her anus taking his cock..

She let her tongue reach out to dive into the stream of energy, as if 'tasting' it, some of the luminous vapours coiling around her muscle as if absorbed into it. But she moved in to kiss him, and he felt some control over his jaw again. But he didn't resist. He wrapped one arm around her back and cupped one of her glutes with the other, and returned the kiss.

Was it romantic? He couldn't tell, that wasn't her deal. But it was intimate. Maybe even loving, in her own way. But it was much more hungry, more salacious, a sex act in of itself and just as arousing, and infinitely more stimulating thanks to the drain.

Still, the lower intensity allowed him to participate, working his lips away in return, swirling his tongue about hers to the best of his ability, melting into the two-pronged drain, the anal ride and the fervent kiss, their lips smacking together wetly every time there was a brief break in the liplock.

Her breasts pressed to his chest, and her hips rolled relentlessly upon his dick. He was leaking so much precum into her ass, her saliva was probably no longer needed. He was throbbing so much as well, and he could feel the pressure in his loins building, the pleasure mounting even as a fatigue set in from her drain, adding to the pleasure.

There was no chance for enduring this onslaught, and with a moan muffled by the kiss, he bucked hard into her rear, releasing a potent torrent of cum.

He felt... something around that core within him crumble, and there was a surge of energy drawn from him in sync with his orgasm, and with it a wave of fatigue.

But this also seemed to send her over the edge as she let out a shrill cry into his mouth, her body shuddering almost violently, the walls of her anus clenching and rippling in a way that was almost torturous during his climax.

And to top it off, he felt a surge of moisture sputter against his crotch, soaking into his bush and reaching the lowest part of his gut.

They spasmed together for a few moments that seemed to stretch into an eternity... and then her drain ceased. She relaxed atop of him, and he felt the grip of her ass loosen.

They were still for a few moments, and then finally Sophia pulled away from his lips, giving her own a salacious lick as the glow in her eyes faded. She smiled and chuckled.

"Thanks for the meal, bro~"

"You're welcome," he said breathlessly; compared to her, his chest was heaving, but she was already recovered. If it weren't for her sliding off his dick - and thus imparting some final pleasure into his beleaguered member which made him wince - he worried she would've kept going. It made sense though, she had just drawn literal energy from him, it was logical that it invigorated her.

But she was relaxed, and she let herself rest on him, her body soft and warm against his. He liked it, not even worried about feeling his cum trickling onto his cock and groin from her ass.

"Your dirty talk is dumb, you know," he said breathlessly.

"Is that why your mind raced every time I said something~?" she teased in return. "It's easy to 'skim the surface' of your thoughts when fucking like this~"

"Can't help it when you say it the way you do~" Marc admitted, still gently groping her ass as he enjoyed the afterglow.

"That's the trick to dirty talk~ What you say can matter, but how you say it matters most~"

He let out a breathless laugh in agreement, and then moaned softly when Sophia stole a kiss from him, the tiniest arc of stimulation as she added a minute draining touch to her smooch.

She pulled away and brushed some of her hair out of her face and his.

"So... how was your first proper day embracing this little relationship we've got going on~?" she asked.

He still had plenty of thoughts about this, some more introspective than others... but right now, in the embrace of his demonic stepsister, he could really only think on the good ones.

"Fucking amazing," he approved.

Sophia smiled, and leaned in to kiss him again.

"Just the tip of the iceberg, bro~"

After that, she giggled and snuggled into his neck, and Marc felt the fatigue set in.

He would be falling asleep soon, but as he laid there, gently rubbing Sophia's ass and her back, he couldn't help but think about what the future held for him.

After all, it was only the first forty-eight hours. A potential lifetime, that was something else entirely.

He couldn't help but smirk.

As scary as some parts of it was... he was looking forward to the challenges.