Chapter One
"Oh, fuck me... fuck me... shit!" Erica whispered. She covered her mouth when a squeak of a moan broke free, just louder than a murmur. Matt had her bent over the shared bathroom sink. The loudest sound in the room was either Erica's panting or the clapping of their bodies as he fucked her from behind. Her hair was pulled back in a messy fistful by his left hand. He bucked his hips, so his cock removed nearly all the way in and crammed back inside her slick pussy lips. They had the shades drawn on the cabin bathroom window, but still peaks of morning sunlight made it through and shined across Erica's shoulder and her breasts as they bounced about in front of her.
Erica nearly tripped over Matt while she dragged him into this bathroom as the rest of the family packed their things up for the drive back to Chicago. Most of the family were outside making the last trips to the car before leaving, while Matt stared at Erica's squinted eyes and open mouth in the mirror. He watched her large tits clap together as he fucked her harder and harder with each thrust and the breathy cries took hold as he knew she was near cumming.
Her fists clung to the edge of the bathroom sink with all of her might as her entire body rocked and shook with each fuck of their hips. "Shiiiit..." Erica gasped as Matt's fingers dug into her thick hips.
"Erica? You in there?" Jordan's voice boomed through the bathroom door, accompanied by a knock on the door.
Matt felt his heart freeze in time and Erica shot up straight in a panic. They both turned to the door in time to see the doorknob turn. Matt pulled free from Erica and scrambled to get his pants up from around his ankles, but in his haste, he nearly fell over into the shower. When the flimsy thumb lock on the doorknob handle held despite Erica's husband's attempts to get inside, both Matt and Erica stopped moving Erica's hands shot up to Matt and told him to relax.
"Yeah, I'm here," Erica replied. There was a brief silence followed by the relaxing of the doorknob as Jordan released it.
"Can you let me in? I need to get my overnight bag," Jordan asked flatly. With no edge in his voice that hinted at any suspicion. Erica sighed a deep breath and smiled. She was leaning her bare butt up against the countertop. Her palm clapped against her bare chest as she began to breathe again.
"I'm almost finished I'll grab it for you when I'm done,
honey
," Erica smiled mischievously as she grabbed the stomach of Matt's t-shirt and pulled him towards her. Matt shook his head protesting, but her palm was already massaging the firmness back into his shaft as she leaned back on the countertop.
"Alright, thanks."
Erica fed the tip of Matt's cock into her pussy lips as she spread her legs wide, "no- hm, problem," she said, wincing. Matt felt the warm wetness swallow his shaft as he pierced inside her. Closing his eyes, he shook his head in disbelief. A cool sweat still clung to the back of his neck from almost being caught and he just now heard the footsteps and sound of Jordan walking away.
Erica nodded her head, encouraging Matt to finish as she cupped her hand around the back of his neck, pulling her tight to him. Matt mouthed the words, 'no no no stop,' the closer his face came to Erica's bust. She only smiled with her thick lips and nodded a seductive yes until she kissed him. Her lips were wet and smooth, and her tongue slid into his mouth, lapping at his tongue and the roof of his mouth. She hummed a small moan inside of his mouth and coaxed him into returning to hump her slowly.
Matt's hands slid up her waist and back down to the top of her ass while he pulled himself out and pushed back in. Erica released a small, high-pitched squeal with every pump of her pussy. Her thighs closed around Matt's bare ass and she looked up as Matt kissed Erica's neck and sucked on her shoulder. The pace quickened and Erica started to cry out in a pant. Panicked, Matt covered her mouth with his hand, which only made her moan more.
Erica's tits bounced wildly between them as Matt's cock pumped her pussy harder. The breathing was out of control as it pushed and pulled from Erica's nose. Erica spread her legs wider to get every inch of Matt inside her. Her ankles bobbed lifelessly on either side of Matt.
Matt's right hand gripped her ass roughly as he forced himself inside her again and again. Suddenly, Erica's legs clapped together around Matt's body. He saw her eyes flirt with the back of her head as her body tensed. Matt's hand slid up and gripped her fat breast hard, squeezing it and her pussy contracted on his cock. Matt's hand did little to quell the forced and guttural moans that escaped Erica's lips. Her thighs trembled wildly.
Finally, letting himself go, Matt pulled himself out of Erica and shot spurts of his hot cum over the top of her waist and belly. Releasing a long and heavy breath as he did.
He rolled his fingers off of Erica's lips as she cleaned herself off with a bunch of paper towel. Erica giggled silently and cooed as she wiped her pussy down. Without words they pulled their clothes on and before she turned to leave, Erica wrapped her arm around Matt's neck and gave him a long-wet kiss, then mouthed the words, 'thank you.'
Matt thought that was strange. It was like he had just shopped at her store or changed a tire for her. She was thanking him for his services.
Erica unlocked the door, but at the last minute turned around and pulled out a small black leather bag from under the sink. She gave Matt a funny wink and went outside. Down the hall Matt heard her say, "here you go, honey."
And Jordan replied, "thanks," before giving her a kiss.
Chapter Two
The drive home was an awkward, silent one. Matt hadn't paid enough attention to his parents to notice them fighting, but the feel of the silence that lingered between them was palpable. He remembered bits and pieces of arguments between them throughout the week. A lot of his father, Tom, yelling at his stepmother, Sharon, over something being her fault. Sharon told my dad that he needed to get tested. Matt didn't mind the awkward silence. At least he didn't have to make pleasant small talk with his stepmother or hear whatever venom his father was brewing.
Matt listened to his headphones as he watched his dad pass cars, one after another. He couldn't focus on much. Ever since he saw Stephanie outside his window, he'd tried to convince himself it wasn't her, but then it would be even more creepy that a stranger was watching him have sex outside his window. No, the truth he knew was it was Stephanie.
But how did she know where I was? What camp site? Which cabin? Why would she follow me into fucking Wisconsin?
Matt realized how embarrassing late his thoughts came to these questions. After seeing Stephanie outside his window last night, Matt spent the next 20 minutes eating out his step sister, Erica, in a nervous panic.
Imagine being caught cheating, then continuing to cheat in front of her.
The mess of politics Matt navigated in his head was confusing even by step family sex standards- if there was such a thing.
Should I be apologetic for cheating on Stephanie? Should I be angry that she followed me? Should I be worried because I caught myself sleeping with another step sister? Should I be worried because she's a fucking psycho stalker who followed me?