My sister made me watch her get fucked until she came | sissy - cuck - femdom

Sarah had always known she was the dominant one in the family. She loved teasing her weak-willed brother, Jack, ever since they were kids. But now that they were both grown adults, Sarah decided it was time to take things to the next level.

One night, while their parents were out of town for the weekend, Sarah invited her boyfriend over for some drinks and fun. As soon as he arrived, Sarah could see the look of disgust on Jack's face as he realized what was going on. But Sarah didn't care - she loved making him uncomfortable.

As they all sat around drinking and chatting, Sarah couldn't help but notice how turned on she was getting. Her nipples hardened under her tight shirt, and she knew she needed to feel her boyfriend's cock inside her. So she leaned in close to him and whispered in his ear, "Let's go upstairs."

Her boyfriend grinned and followed her up to her bedroom, where they started kissing passionately. Sarah pushed him down onto the bed and climbed on top of him, grinding her hips against his growing erection.

Meanwhile, Jack had followed them up the stairs, unable to tear himself away from the scene unfolding before him. He watched as his sister pulled off her shirt, revealing her perfect tits, and then straddled her boyfriend, sliding his cock deep inside her wet pussy.

"Fuck, you feel so good," Sarah moaned, throwing her head back in pleasure.

Jack felt his own dick twitch in his pants as he watched his sister get fucked right in front of him. He couldn't believe this was happening, but at the same time, he couldn't deny how hot it was.

Sarah opened her eyes and saw her brother standing there, watching them. A wicked smile spread across her face.

"Like what you see, little bro?" she asked, taunting him.

Jack didn't say anything, but his hard-on spoke volumes. Sarah laughed and beckoned him closer.

"Come here, I want you to see everything," she said, pulling him towards the bed.

She reached out and grabbed his hand, placing it on her breast as she continued riding her boyfriend. Jack hesitated for a moment, but then gave into the sensation of his sister's soft flesh beneath his fingers.

Sarah looked up at her boyfriend and smiled mischievously.

"You don't mind if my brother joins us, do you?" she asked.

Her boyfriend shrugged, clearly too far gone to care. Sarah nodded and motioned for Jack to come even closer.

"Get undressed, sissy boy," she commanded.

Jack obeyed, stripping off his clothes until he was standing naked in front of his sister and her boyfriend. Sarah reached out and stroked his cock, feeling it throb in her hand.

"Such a good little boy," she cooed, before turning her attention back to her boyfriend.

"Tell me exactly what you see, jackass," she demanded, her voice dripping with dominance.

Jack took a deep breath, trying to steady himself. His heart raced as he looked at his sister lying on the bed, her legs spread wide open as her boyfriend thrust in and out of her. He could see the glistening moisture between her thighs, the way her breasts bounced with each movement.

"I see you, fucking your boyfriend," Jack stammered, his voice barely above a whisper.

"And how does that make you feel, little brother?" Sarah asked, arching an eyebrow.

Jack hesitated for a moment, unsure of how to answer. He knew he shouldn't be enjoying this, but he couldn't deny the arousal coursing through his veins.

"It makes me...it makes me feel horny," Jack admitted, his cheeks flushing red.

Sarah smirked, pleased with his response. She reached out and beckoned him closer, wanting him to get a better view.

"Then why don't you touch yourself, sissy boy? Show me how much you enjoy watching me," she said, her tone low and seductive.

Jack hesitated for only a second before wrapping his hand around his cock and beginning to stroke it slowly. He closed his eyes, losing himself in the sensations running through his body.

But when he opened them again, he found Sarah staring at him intently, her gaze piercing straight through him.

"Describe it to me, jackass. Tell me what you're doing and how it feels," she commanded.

"I'm touching myself," Jack breathed, his voice trembling slightly. "It feels amazing, sis. Your boyfriend's cock looks so big inside you,

Sarah eagerly climbed off her boyfriend and positioned herself on all fours, sticking her ass high in the air. Jack couldn't help but stare at his sister's round, firm buttocks and the pinkness of her pussy peeking out from between her legs.

"Come closer, sissy boy," Sarah commanded, looking over her shoulder at him with a devilish grin. "I want you to see how a real man fucks a woman. How he takes charge and makes her beg for more."

Jack reluctantly stepped closer, feeling ashamed of his own desires but unable to resist the pull of his sister's raw sexuality.

"Look at that," Sarah cooed, nodding toward her own exposed body. "My pussy is already dripping wet, ready for my boyfriend's thick cock to fill me up. Can you imagine being the one to fuck me like this, jackass? Making me scream your name and cum all over your dick?"

Jack shook his head, feeling pathetic and small compared to his sister's confident lover.

"No, of course you can't," Sarah continued, almost pityingly. "Because you're nothing but a sissy bitch boy, incapable of satisfying a real woman like me. All you can do is stand there and watch as I get fucked by a real man who knows how to treat a woman right."

With that, Sarah's boyfriend entered her from behind, causing her to cry out in pleasure. Jack watched as the man's cock disappeared inside his sister's willing pussy, inch by inch, until he was fully seated inside her.

Sarah rocked back and forth, meeting each of her boyfriend's thrusts with equal enthusiasm. Her tits swung freely beneath her, nipples hard and pointing directly at Jack.

"Yes, yes, YES!" Sarah screamed, practically begging for more. "Fuck me harder! Make me cum all over your cock!"

The sound of their bodies slapping together grew louder and louder, filling the room with an animalistic energy that made Jack's own dick throb with need.

With that, Jack lost control, shooting ropes of cum all over the floor as he watched his sister get fucked harder and faster. When it was over, he collapsed onto the ground, utterly spent and humiliated.

"Good boy," she purred, reaching out to stroke his cheek. "I think you enjoyed that more than you should have."

Jack blushed, knowing she was right. But he couldn't help it - seeing his sister like that had awakened something primal within him. And he knew he would do anything to experience that rush again.