Matt crept towards the bathroom, the lewd moans and wet slapping sounds growing louder. He cracked open the door and his eyes went wide at the depraved scene within.
Nora and Ariana were completely nude, their gorgeous bodies on display. Between them was Brad, an 18 year old Matt recognized from the gym. The teenager was panting and moaning as the sisters took turns wildly riding his young cock.
"Oh fuck yes, your dick feels so good!" Nora screamed out in ecstasy as she bounced up and down on Brad's rigid shaft. Her pert tits jiggled with each slam of her hips.
Ariana was behind her, groping Nora's ass. "Mmm you fuck my little sister so good baby," Ariana said. "Now it's my turn to have that big cock inside me!"
The sisters switched places. Ariana positioned herself reverse cowgirl over Brad's lap, taking his slick cock deep into her soaked pussy. Nora moved behind her sister and sat on Brad's face. The teenager eagerly ate out Nora's cunt.
Matt stared in aroused shock as the threesome continued fucking with wild abandon. Brad looked absolutely spent but the insatiable sisters kept using his young body to satisfy their twisted desires.
"No wonder he looks exhausted, it seems like they've been at this all night," Matt muttered under his breath. His own cock was rock hard watching the depraved group sex scene play out.
Matt quietly stroked his bulging erection, conflicted about whether to intervene or simply stay hidden watching the erotic taboo acts unfold further. The drug had clearly warped Nora and Ariana's minds beyond repair already. How much further would they descend into perversion?
Matt decided it was time to escalate the situation to the next level. He crept away from the bathroom orgy and went to the kitchen to mix up the remaining doses of the potent aphrodisiac supplement he had brought with him.
Taking all 8 scoops, Matt put the whole bag of powder into a single large bottle. The concentrated formula was sure to make them absolutely insane.
Matt returned to the bathroom, his super-charged concoction in hand. "Hey ladies, look what I've got for you," he announced.
The sisters paused their wild threesome at the sound of Matt's voice. Their eyes lit up when they saw Matt holding the bottle of transparent liquid. They had become completely addicted to the euphoric effects of the drug.
"Is that more of the special formula?" Nora asked eagerly.
"You bet babe. I mixed together a whole bunch of doses just for you." Matt replied.
He handed the bottle to Nora who immediately began chugging it down greedily. Ariana grabbed it next, gulping down more of it. The powerful drug cocktail hit their systems rapidly.
"Save some for me and the kid too," Matt said.
Nora handed him back the bottle and Matt took a big swig himself. The concentrated formula tasted bitter but he could feel it working fast. His head swam as a powerful wave of euphoria washed over him.
Matt passed the bottle to Brad. "Drink up, let's all enjoy this together."
Brad took the bottle hesitantly. He was young and impressionable, and the tension in the air excited him.
"Go on Brad, drink it!" Nora encouraged. She was practically salivating watching him.
Brad gave in to the peer pressure. He drank deeply from the bottle, consuming the last drops of the potent formula. The drug's disinhibiting effects hit him immediately.
Brad's cock throbbed back to full hardness as the sisters straddled him again. Their nude bodies sandwiched him from both sides. Ariana devoured the teenager's mouth in a deep kiss while Nora slid down onto his renewed erection.
Matt stared transfixed at the depraved sight. "Fuck, you girls are filthy. Let's really make this freaky."
Matt stripped fully naked, his thick cock swollen and throbbing. He moved down behind squatting Nora and spread her ass cheeks wide while she was sucking Brad's swollen dick. Matt licked his finger and crudely worked it into Nora's tight asshole, fingering her rear.
"Oh god yes, I want you to fuck my ass Matt!" Nora moaned out between her slurping, her body overloading with perverse pleasure.
Matt squatted down behind Nora, spreading her ass cheeks wide to expose her tight little rosebud. He pushed the swollen head of his cock against her puckered asshole, sinking into her rear inch by inch as Nora let out a long, low moan of depraved pleasure.
"Oh fuck yes Matt, shove that big dick up my ass!" Nora cried out. At the same time, her lips remained wrapped firmly around Brad's throbbing cock. She sucked the teenager hungrily, her muffled moans vibrating along his sensitive shaft.
Matt began to thrust, fucking Nora's asshole with deep strokes. Each pump of his hips drove her mouth further down onto Brad's dick until she was practically gagging on it. Drool ran down her chin messily as she choked and gagged while being spit roasted.
"Mmm fuck, you girls are so nasty!" Matt growled through gritted teeth. Nora's tight ass felt incredible squeezing his pistoning cock.
Just then Ariana crawled over next to them, her eyes gleaming with lust. She leaned down under Nora and began eagerly licking along the underside of Brad's swollen cock and balls. Her tongue flicked and swirled teasingly while Nora continued sucking the top half of Brad's dick voraciously.
"Oh my god, this feels amazing!" Brad moaned out loud, overwhelmed by the lewd sensations of two girls licking and sucking his cock in tandem. Their skilled mouths worked him from base to tip, driving him wild.
Matt increased the pace, ramming his full length into Nora's ass with powerful strokes. Each thrust drove her mouth deeper onto Brad's dick as she choked and gagged. At the same time, Ariana's tongue kept teasing the teenager's shaft and balls relentlessly...
Matt gripped Nora's hips tightly and pounded into her ass with abandon, his thick cock pistoning in and out of her tight hole. Nora's muffled moans grew louder on Brad's cock as Matt hammered her from behind, using her ass roughly.
"Oh fuck I'm gonna cum!" Brad suddenly cried out. Nora could feel his shaft swelling in her mouth. At the same time Matt's thrusts grew more urgent as he neared his own climax.
"Mmm cum for us, cum in my sister's mouth!" Ariana moaned from below as she swirled her tongue rapidly along Brad's balls.
That was the final push Brad needed. He grabbed the back of Nora's head and shoved her mouth down onto his cock as it erupted. Hot jets of salty cum blasted into Nora's mouth, pumping straight down her throat as she struggled to swallow it all.