**Please note that this is strictly fantasy, a fictional tale of a dominant stepbrother and submissive stepsister that have an undeniable, visceral connection.**
Sophie knew what she was doing was wrong and even immoral but she couldn't look away. She was so enraptured by the sinful sight of Connor sitting on his chair, naked, furiously jerking himself off as he watched a hardcore porno on the computer. He had no idea that she was there since she had been let out of class early. Surely, Connor had kept his bedroom door ajar to hear if someone had come home. But she had been so silent that he hadn't even heard her.
And she knew she was going straight to hell for admitting this, but she was so happy that she had walked into this delicious scene before her. She couldn't take her gaze away from him as he fucked himself with his fist; he was facing away from her but he was angled back in his office chair so she could see his hand wrapped around his long, thick, pulsating cock that was completely drenched. He was so encapsulated in visceral pleasure that he was thrusting against his closed fist, jutting his hips upward and moaning. The wet, slippery sound of his hand working up and down his velvety cock saturated the still room until Connor gasped and went completely still.
"Fuck me!" he hissed.
Sophie felt like she was coming herself as she bit down her lower lip to suppress the whimper that almost escaped her. Connor's hips jerked upward and a sexy, feral growl emitted from him before jet after jet of his white, thick cum shot out of him like a waterfall, landing on his sculpted abs and toned chest. To her complete shock, he began touching himself again, using his own spilled cum as lubrication. His entire body violently shook before he moaned and came even harder than the first time; his cum gushed out of him like a geyser, even landing on the hardwood floor. The erotic, sinful sound of his cum splashing on the floor forced Sofia's knees to buckle and her virgin cunt to throb in painful desire. She imagined Connor's heavy, full balls of fertile cum pumping inside of her womb and that mere image alone forced a tiny moan to escape her. She realized her mistake but it was too late; Connor had heard her and whipped around in his seat to face his silent voyeur. Sofia's brain screamed at her to run away but her body stayed put, the yearning expression in her eyes clearly evident for him to see. When he finally recognized who had been secretly watching him, his eyes widened in complete shock.
"Sophie?"
His deep, sexy voice sounded so confused and...betrayed. Panicking, Sophie quickly darted down the hall and locked herself in her bedroom, throwing herself against the bed. Her heart was thundering in her little chest and her hands were shaking in a mixture of arousal and apprehension. Would he tell their parents about what had just transpired? While Connor was clearly in sync with his sensual, erotic side, her stepfather, William, was most definitely not; he viewed any sex outside of marriage as immoral and worthy of God's punishment. If Connor told William of what just happened, she would most definitely pay the consequences...
The knock on the door was inevitable. Sophie's throat tightened and her eyes welled up with tears as she nervously walked to the door to unlock it and open it. She expected him to be glaring at her with his arms crossed, scowling even. When she saw the neutral expression on his handsome face, though, it completely took her back. He was fully clothed, of course, wearing a black V-neck shirt and ripped denim jeans.
"How long were you there watching me?"
His potent green eyes bore into her soul and it took everything in her to not lunge herself at him and kiss him. Fuck me, ravage me, own me, make me yours. But she couldn't have the one person she wanted because he was off limits. He was her brother, regardless if she was adopted.
"I-I'm sorry, Connor," she stammered. "I shouldn't have been doing that. That was wrong of me. Please don't tell mom or dad about this. It won't ever happen again."
A full minute passed in complete silence as they both gazed at each other intently. At six feet, two inches, Connor towered over Sophie, but he had never felt intimidated or threatened by him. Right now, though, she couldn't deny the palpitating energy simmering between the both of them. Even though Sophie had gained some weight during her senior year, she couldn't deny that she had a scintillating figure with her C-cup breasts, wide hips, and round ass. A tremor ran through her body as he did something that he had never done before; his gaze wandered down her curvy body before settling back to her face.
"You liked what you saw?" he asked in a low, raspy whisper. "Is that why you kept watching, knowing you were going to get caught?"
Sophie's cheeks burned and her clit throbbed incessantly at the sexy image of his cum gushing out of him, spraying himself and even the floor in his hot, thick seed. "Yes. I loved it. It was the sexiest thing I've ever seen."
A few tenuous moments passed before he nodded. "I won't tell mom and dad about this."
Relief swelled within Sophie's cheeks. Until Connor chuckled and took a step toward her, keeping his gaze on her face. Excitement glimmered in his forest green eyes before he extended his right arm and caressed her left smooth cheek.
"The sexiest thing you ever saw, huh?" Lust flickered in his eyes. "You know, I could easily blackmail you."
Sophie shivered in a mixture of excitement and dread. "B-blackmail me?"
"Yes." His long, lean fingers traced her jaw. "In exchange for our secret, I could demand you to do whatever I pleased. I could handcuff your little wrists together and feed you my cock and balls. Run my fingers through your hair and call you my dirty little cock whore. But it wouldn't be a punishment for you, would it? You would enjoy every second of it."
She gasped and her eyes widened. "How'd you know I like that stuff?"
He smirked as he ran his thumb over her plump lower lip. "I'm not like the other boys. I notice things. I've seen the type of books you read in your room." He hummed. "Or I could make you touch yourself in front of me until you came twice. That would be fair."
Sophie gulped. "Okay. Okay. As long as you don't tell them."
She was ready to walk over to the bed when Connor abruptly brought his hand down to her left wrist, squeezing it lightly. "No. You don't have to do any of those things, Sophie. I'm not a selfish asshole." He sighed and took his hand away. "I'm sorry. I shouldn't have said any of that. You're my little sister. I should be protecting you, not hurting you."
The sound of the front door opening downstairs startled them both, grounding them back to reality. A sad smile grew on Connor's lips before he laughed.
"If only we weren't brother and sister. I'd make you mine."
~~Ten years later~~
If only we weren't brother and sister. I'd make you mine.
