The siblings watched the movie a while until Alex's back and butt began to tire from the steep angle of his seated position. "I need to lie down," he said and slid two hands under bare Casey's upper thighs. He lifted her small body gently and began to swing his leg under her. She gasped at his sudden show of strength and helped free herself from between his knees.
Alex pulled a couple of pillows to their sides and leaned over onto a pile of soft blankets, guiding Casey down with him. Wrapping an arm around her narrow waist, he pulled her shoulders tight against his chest as she shimmied her hips back. Alex looked down as he felt her feminine curves lock into his hips and found that her short shirt had ridden up, exposing her panties. Two thin layers of cotton were all that separated the siblings.
Fighting with all his might, Alex attempted to quell his excitement. Conflicting emotions roiled inside him as long-standing brotherly love and burgeoning teenage lust battled for control. His calmer head prevailed, but just barely, and he returned his attention to the movie.
Alex soon found himself betrayed by his choice when a scene of explicit romance played out as the movie reached its climax. Casey squirmed against him and he could do nothing to stop his rising fervor while the erotic display unfolded on the television.
Casey felt Alex grow against her and moaned with a throat-rattling hum. She pushed back, rocking her hips, almost imperceptibly at first. Alex returned pressure and Casey became emboldened. Grasping his wrist draped over her waist, she pulled his arm up and pressed his hand onto her breast.
Alex held her soft mound in his palm, unable to control his urges, and began slowly massaging her tenderness through the thin nightshirt. He felt her nipple harden and shifted his attention to the sensitive tip, brushing it between his fingers as Casey mewled and squirmed under his touch. Sliding his hand through her cleavage, he grasped her second handful and rolled it in his palm while pushing his hips forward and sliding his aching stiffness along her backside.
Casey gasped as Alex changed grips on her chest. She felt wetness welling between her legs, her sex already inflamed from the extended close contact with her brother and the sensual scene they'd just watched unfold on the screen. She twisted under his embrace and lifted up, pulling her well-worn shirt over her head. Laying back, she spun back into her brother's arms and kissed him, immediately opening her jaw and begging entrance into his mouth.
Casey's tongue slid between Alex's lips while he gently caressed her bare skin with his fingertips. He pulled back and she whimpered softly in complaint. He propped himself up on an elbow and used his free hand to pull his pajamas over his shoulder. Casey helped free him from his top and he dropped back down into her arms, pressing his bare skin against her warmth.
Pure bliss overcame both brother and sister as their half-naked bodies came together for the first time. Alex kissed Casey with pent-up passion, overcome by his love for her and driven by her own overt desires. He lifted his thigh between her silky smooth legs and slid it up and into her hot center. She flexed her lithe body against him and ground her sodden underwear into his leg, climbing up his hip until she could feel his rigid shaft press into her belly.
Reaching down, Casey tucked her small hands under the loose waistband of Alex's thin cotton pants. At the same moment, Alex's long arm slid along Casey's thigh and around her front, tracing the seam of her panties down and in until his palm came to rest on the pronounced mound between her legs. Casey lifted her knee and Alex reached farther, pressing the damp cotton into her aching sex.
Two sets of warm fingers wrapped around his cock and Alex groaned. He moved his hand up and slid under the waistband of Casey's undies, moving slowly as he first felt the downy dome of her pelvic crest, topped with a small patch of silky hairs, followed by the softness of her two puffy lips that guarded her entrance. Reaching farther, he skimmed over the start of her wet crease, it opened willingly as Alex slid a finger into her tender petals and over the sensitive button nestled between them.
Casey drew a sharp breath as Alex's finger crossed her clit. She focused her attention on the throbbing shaft in her hands, something she'd wanted to hold for a very long time. Reaching down, she stroked Alex's length with one hand, while cupping and rubbing her other over his flared tip. She felt him thrust, pushing his stiffness through her hands, timing his movements with hers.
Alex continued circling Casey's sensitive button, matching her rhythmic pace and feeling himself start to tighten in anticipation. He pushed one long finger into her hot entrance, ample wetness allowing him to slide easily into her depths. She gasped as he pressed harder, rubbing her clit with his palm and driving his finger as deep as possible into her pulsating core. He curled his finger, caressing the spongy rippled flesh of her insides, and heard his sister let out an involuntary cry of pleasure.
The siblings kissed passionately as they worked themselves into a frenzy on the living room floor. Smiling, gasping, and squealing, Casey writhed under his touch until her hips locked up and she howled in release, shuddering as a flood of ecstasy crashed into her. Alex felt her cinch around his finger and was immediately driven over the edge. He grunted and pushed into Casey's embrace as his own explosive climax sent him gushing into her eager hands.
Casey held Alex's throbbing shaft tenderly as he spasmed, still reeling from the after effects of her own orgasm while he emptied into her soft grip. Once he calmed, she sat and brought her arms up in curiosity, examining the white mess he'd left in her palms. She lifted a hand and licked a dribble from her wrist. Finding the taste pleasing, she continued to clean herself, hungrily lapping up her brother's gift.
Alex stroked his sister's bare back while he watched her swallow the last drop. She turned and grinned, leaning over him, her breasts swinging free as she leaned down and kissed him. Casey's tongue swirled through his mouth and Alex could taste the familiar salty twang he'd sampled with Fiona. Unable to resist the temptation of her silky smooth bare skin, Alex wrapped his arms around her naked torso and pulled her tightly into his chest, feeling her soft mounds press into him. He ran his hands across her back and down her hips, cupping her tight round backside and tenderly kneading her creamy skin over and under her cotton panties.
The credits rolled while the siblings stayed locked in each other's loving embrace, exploring their bodies, not caring that they'd missed the end of the movie. Alex eventually sat up, unraveling from his sister's embrace.
Casey stood and softly said, "Be right back." Alex watched his sister, naked except for a pair of white cotton panties, skip across the hardwood floor and disappear into the bathroom. She emerged a minute later and took her time crossing the room back to Alex, reveling in his gaze as he blatantly explored her near-naked body. Her excitement growing, she stopped halfway and slipped her thumbs into her panties and dropped them to the ground. Standing, she stepped out of the damp cotton and looked up to find her brother's jaw hanging loose.
Alex stared as his naked little sister strolled slowly over to him. His attention focused on her tight feminine curves, pink-capped breasts, and swinging narrow hips that held the greatest treasure of all in their center. She walked to his shoulder and wrapped her hands around his head, tousling his hair. Alex nested into her thigh, he could smell her sex and it made his head spin. He wanted to lift his head and slide his tongue into her, but thought better of it. Their evening was special enough without rushing further into unexplored territory, although he was certain Casey would not object.
Alex stood and embraced his naked sister. "Thanks for a wonderful evening, Case. I love you."
"I love you too. This was perfect," she replied and sighed as she turned her head and leaned against his chest, pulling herself tight into his warm bare skin.
The siblings kissed one last time before Alex bent and pulled on his shirt. Casey yawned and donned her teddy bear nightshirt. "I'm going to bed, goodnight."
"'Night," he said and watched her glowing body slowly walk up the stairs.
Alex cleaned up the mess of blankets and pillows and found only one item out of place once he returned to the living room. Casey's panties lay on the floor where she'd dropped them. He walked over and bent, feeling that they were still warm and slightly damp, he pulled them to his face and inhaled deeply. He moaned and tilted his head back, lost in his sister's bittersweet musk. Once he'd had his fill he shut off the TV and lights and went upstairs. Stashing Casey's gift under his bed, he rolled onto his pillow and quickly fell asleep.
The next morning and afternoon came and went while Alex had the house to himself and tried his best to occupy his mind with work. He thought about his tender evening with Casey the night before while simultaneously fretting over his other sister, Lily. One loved him and one hated him, it was starting to tear him apart. He had to try to fix the situation soon, or else he'd risk losing Carrie. That was the thought that distracted him above all, he didn't want to disappoint his mentor. He didn't think he'd be able to get out of this mess without her.
Carrie and Sam were guests at dinner that night. Alex made spaghetti and meatballs, Lily's favorite, hoping that might give him an edge. Carrie was distant, he knew he'd have to complete his assignment before she'd return to her old self. Lily avoided him completely. She wouldn't talk to him, or even look in his direction. It was as if he didn't exist.
