Akeno walked over, the dark whip cracking sharply through the air before slapping against Mamako's bare, shivering thigh.
Taking the cue from the pain, Mamako cried out, her voice rising to a frantic, obscene pitch as she screamed directly at the crack in the door.
"Honey~!! A cock so much bigger than yours~... Ahhh~!!! I love it~!!! Honey~!! Are you watching your slutty mommy, dear~!!!"
Akeno paused her whip mid-swing, her violet eyes narrowing with sudden curiosity.
She leaned in close to the trembling mother. "My, my... and how exactly do you know his cock is smaller than Satoru-kun's?"
Mamako's eyes were completely dazed, glossy with unfiltered lust as her head rolled back against Satoru's chest.
"R-Recently... whenever he's home... he just stands there watching me do housework... he pulls out his dick and masturbates right in front of me... shouting dirty words at me... calling me a slutty mother, a whore bitch, a dirty masochist..."
Satoru groaned from behind her, his grip on her hips tightening as he delivered another punishing, deep thrust that rattled the door frame.
"And you love every second of it, don't you? Every time those filthy words leave your mouth, your pussy just tightens up, clenching around my dick like it never wants to let go."
A depraved, utterly broken smile spread across Mamako's face.
She pressed her nose against the narrow gap in the door, locking eyes directly with her son sitting in the dark room.
"Yesh~!" she wailed, her voice trembling with intense pleasure.
"I love it when he calls me those dirty names! It makes me so, so hot watching his cute little cock twitch and spray cum while he jerks off in front of his own mommy~!"
The sheer obscenity spilling from her lips pushed her over the edge.
Satoru felt her pussy wall violently spasm, clamping down like a vise around his shaft as a wave of intense, squirt-filled climax ripped straight through her.
Her body shuddering uncontrollably against the wood.
While he was relentlessly plowing Mamako from behind, Akeno slid her gloved hand down between the mother's cheeks, jamming two fingers deep into her tight, unworked asshole.
"I want to fuck this hole next~," Akeno purred, her eyes dark with sadistic desire.
Satoru rubbed his chin thoughtfully, his lower body maintaining a heavy, rhythmic pace that kept Mamako whimpering.
"I can't think of a good angle from back here... I want her pathetic son to get a front-row seat to every single detail."
Without breaking his stride, Satoru reached up, grabbed a handful of Mamako's brown hair, and delivered a heavy kick straight to the center of the bedroom door.
The lock gave way with a loud creak, the door flying wide open to reveal an average-looking, trembling teenage boy sitting on the floor inside.
"H-Honey~!!!" Mamako moaned out.
The moment her glazed eyes locked onto her trembling son, her pussy violently convulsed again, spraying her hot squirt straight onto the hardwood floor right at the boy's feet.
Satoru effortlessly lifted her voluptuous body higher by her hips, a amused, devilish smirk plastered across his face as he watched the teenager shiver in complete arousal.
"See? This is much better... It's no fun if you hide behind a locked door, boy."
Akeno bit her lower lip, practically shivering with frustration as she wrapped her arms around Satoru's bare chest from behind, pressing her massive, bare breasts against his back.
"Make it up to me later, Satoru-kun... I'm getting completely neglected over here..."
Satoru glanced back over his shoulder, capturing her lips in a hot, wet kiss before pulling back with a small smile.
"Later. Right now, I'm going to stretch his mother wide open right in front of his face."
By the time morning light broke through the apartment windows, Satoru and Akeno were sitting comfortably together on the living room sofa.
Both of them were completely naked, with Akeno nestled contentedly in his lap, her heavy breasts resting against his chest as they snuggled up and casually rehydrated with a cool bottle of water.
A few feet away, Mamako's son was trying to support his mother's limp, trembling body.
Mamako was a complete, broken wreck—her pussy and ass were visibly stretched, continuously dripping a steady stream of thick semen onto the floorboards.
Her face was contorted in a permanent, glazed daze, her swollen lips shivering as she muttered like a broken record, "Cock... c-cock... more cock..."
Despite the ruined state of his mother, the teenage boy looked up with a twisted mixture of awe and profound gratitude, bowing deeply toward the couple on the couch.
"T-Thank you so much... Devil-samas..."
Satoru chuckled, raising a hand in a lazy wave as a crimson magic circle flared beneath himself and Akeno.
"Have fun with your new mommy, kid..."
In a flash of light, they vanished from the apartment and reappeared inside the quiet Occult Research Club room.
Satoru sank into the plush leather sofa, stretching his bare, muscular arms over his head with a satisfied groan.
"Damn, now that was a ridiculously fun contract."
Akeno materialized beside him, puffing out her cheeks in a exaggerated, dramatic pout.
"You completely stole my job, Satoru-kun... I was supposed to be the master in charge!"
Dropping smoothly to her knees on the rug between his legs.
She reached out and pulled his heavy, half-flaccid cock straight toward her waiting mouth.
"I want you to take full responsibility right now~"
She leaned in, eager to wrap her wet lips around his shaft, but Satoru caught her by the shoulders, pulling back and casually standing up to get dressed in his uniform.
"Not right now, Akeno-hime. It's almost time for classes, and there's something very important I have to take care of today," he said, a dark, lewd smile spreading across his lips.
Akeno tilted her head, her violet eyes glinting with instant curiosity. "Oh? And would you mind if I joined you for this... 'something important'?"
Satoru curled his lips, his eyes narrowing into a dangerous, devilish glint.
"Not at all. It's a brand new, extremely fun kinky project I'm starting up... I could definitely use a mischievous partner like you."
Akeno's eyes practically shone with sadistic delight as she stood up, brushing off her skirt after getting dressed.
"My, my~ You really have a endless supply of filthy ideas locked up in that head of yours, don't you?"
Satoru stretched his hands over his shoulder and moved toward the door.
"Yeah... after all, what's the point of being a Devil if you aren't having any fun?"
******
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