Sophie sat on the edge of the bed, fidgeting with her hands. She knew what was about to happen, and part of her was excited, while the other part was mortified. She looked up at her brother, Jake, and tried to speak, but her throat was too dry.

"What's wrong?" Jake asked, a hint of concern in his voice.

"I don't know if we should be doing this," Sophie finally managed to say.

"Don't be ridiculous," Jake said, sitting down next to her. "We've been wanting to do this for years. And now we finally have the chance."

Sophie nodded, but didn't say anything else. She knew she was being foolish, but she couldn't help the feeling of guilt that was gnawing at her insides.

Jake rolled his eyes and scoffed "You're gonna ruin all the fun by being a prude." He picked up the games, setting it on his lap "Let's not waste this." Sophie couldn't help but feel her anxiety rise as she watched him stack the wooden blocks together. She tried to focus on the game, but her mind kept wandering back to the forbidden act they were about to perform.

Finally, Jake completed his game and set it aside, his gaze fixed on Sophie's face. "Are you ready to man up?" he asked, a hint of sarcasm in his tone.

Sophie's heart pounded in her chest as she nodded reluctantly. Jake wasted no time in undoing his belt and unzipping his pants, letting them fall to the floor with a heavy thud. Sophie bit her lip nervously as she watched him unfold himself from his chair before approaching her slowly.

"Back on the bed," Jake commanded, his voice laced with authority. Sophie reluctantly followed him as he climbed onto the mattress, his eyes searching for something in the drawer beside the bed. He pulled out a deck of cards and slapped it down in front of Sophie.

"Deal me in," he said, smirking at her.

Sophie hesitated for a moment before reaching for the cards, her hands shaking with nerves. She dealt them out quickly, trying to hide her nervousness from Jake.

"Your turn," he said, flipping over the first card.

Sophie stared down at the queen of hearts staring back at her without blinking. She took a deep breath and let it out slowly before flipping over the next card - the king of spades.

"Fucking ace," Jake muttered under his breath as he flipped over more cards until they were both dealt full hands.

Sophie had never played poker before, but she watched intently as Jake placed his bets and called his raises. He seemed to have an innate ability to read people's hands and make calculated risks that paid off every time.

When it was Sophie's turn to bet, she hesitated for a moment before placing three chips on the table between them.

Jake gave her a knowing look before tossing his cards facedown on the table. Sophie bit her lip nervously as she turned over her hand to reveal a full house. She couldn't believe that she had beaten him so easily.

"Well, well, well," their mother said as she walked in from the kitchen. "Looks like our little pervert is onto something."

Their father entered the room with a beer in his hand and a smirk on his face. "What's going on here?" he asked, his eyes flickering between Sophie and Jake.

Jake chuckled and stood up, grabbing his pants from the floor. "Nothing for you two to worry about," he said with a wink before disappearing into the bathroom.

Sophie watched him disappear with conflicting emotions swirling inside her. Part of her was excited by this forbidden action they were embarking upon, while another part couldn't help but feel hesitant and reluctant about proceeding any further.

"Well?" their mother asked impatiently. "Are we playing or not?"

Sophie glared at her brother, then turned back to their mother, determined to prove that she wasn't some delicate little flower. "Fine," she said with a half-smile. "If we're going to play poker, let's play poker."

Their parents exchanged glances, then turned their attention back to the cards on the table. The game began in earnest as laughter and banter filled the room. Sophie found herself getting drawn into the conversation as the cards were dealt and bets were made.

She noticed that Jake's eyes kept darting towards her when he thought she wasn't looking, and she could feel his gaze burning into her skin. But even though she felt a strange mix of excitement and reluctance towards him, she had never felt like this before.

As the night wore on, more and more alcohol was consumed until everyone was feeling loose and relaxed. Jake finally made his move, leaning in close to Sophie and whispering something dirty in her ear that had her blushing with embarrassment and arousal.

Their parents called it quits long before they did, but Sophie didn't want the night to end quite yet. She asked Jake if he wanted to take their play upstairs or downstairs - there were no rules here except for their own desires.

Sophie's heart raced as she heard their parents' footsteps echo down the hall. The sound of their mother's heavy breathing grew louder, and they knew that they were very close now.

"Holy shit," Jake muttered under his breath. "I didn't expect this."

Sophie hesitated for a moment before glancing at her brother. "You didn't really think they weren't going to do it, did you?" she asked sarcastically.

"No, I guess not," Jake admitted reluctantly. "But it's still kind of weird."

Sophie shrugged, feeling a mix of disgust and arousal wash over her once again. "Well, what are we waiting for? Let's go exploring."

With a sense of adventure coursing through them, the siblings made their way down the hall towards the sound of their parents' moans. As they approached the bedroom door, however, both siblings hesitated for a moment.

"I think we should probably turn around," Jake said finally.

"Why?" Sophie demanded impatiently. "We came this far."

"But what if we get caught?" Jake countered nervously. "What if Mom or Dad sees us?"

Jake hesitated, unsure of how to proceed. "But what if they don't want to join?" he asked nervously.

Sophie rolled her eyes sarcastically. "Come on, Jake. You know our parents are always up for a good time. We'll just have to invite them over," she said with a smirk.

Jake looked at her in disbelief. "You're not serious?" he asked incredulously.

Sophie shrugged nonchalantly. "Why not? It could be fun," she replied, already moving towards the door.

Jake followed after her reluctantly, his mind racing with thoughts of what their parents would think if they ever found out about this unexpected night of pleasure. But even as those thoughts swirled in his head, he couldn't help but feel a sense of excitement building within him.

Sophie wasted no time in opening the window, sliding it up with a low groan. The cold air rushed in, making them both shiver. Jake tried to keep his mind on what they were doing, but it was difficult with the sound of their parents' moans filling the room.

He glanced at Sophie nervously, unsure of what to do next. "Are you sure about this?" he asked hesitantly.

Sophie rolled her eyes impatiently. "Jesus Christ, Jake. Either we go for it or we don't," she snapped.

Jake nodded reluctantly before stepping closer to Sophie, his hand reaching out tentatively to grab hers. "Okay," he said finally.

They stood there together in silence for a moment, both hesitant yet aroused by what they were about to do. When Sophie spoke again it was with a smirk playing on her lips.

"Remember," she said mischievously, "we're the good kids."

Jake chuckled nervously at his sister's teasing before taking a deep breath and pulling himself up the windowframe and into their parent's bedroom.

"Good luck," Sophie called out playfully as he disappeared from sight.

Jake took a deep breath and slowly pushed himself through the windowframe. He crawled into the bedroom, trying to be as quiet as possible. As he lay there, he could hear the sounds of moans and grunts getting louder and closer to him.

Sophie wasn't slow to follow him, and she joined him in the bedroom with a smirk on her face. Jake couldn't help but feel a sense of excitement mixed with guilt as they watched their parents getting intimate with each other.

But then something unexpected happened - Jake's father suddenly turned towards him and spoke up. "What the fuck is going on here?" he asked angrily.

Jake froze in place, unsure of what to do next. Sophie sat up next to him, her eyes wide with panic as she tried to come up with an explanation.

"Uh. Mom sent us to fetch you," she said finally, trying to sound casual even though fear was evident in her voice.

Jake's father sighed heavily before sitting up on the bed and glancing over at his wife. "Well shit," he muttered before looking back at Sophie and Jake. "You two are gonna get it when I'm done here."

Sophie's eyes widened in surprise as her father's words hung in the air. She couldn't believe he was about to punish them for eavesdropping on their parents' sex life.

Jake looked at her with a mix of fear and resignation in his eyes. He knew that getting caught was bad enough, but getting punished by their own father was even worse.

"Come on, Jake," Sophie said, trying to sound innocent. "Let's just go before things escalate."

Jake hesitated for a moment before nodding slowly and following Sophie out of the room. As they walked towards their bedroom, they could hear their father's heavy breathing and grunts getting louder and louder.

Sophie paused outside their bedroom door, a wicked smile playing on her lips. "You know what this means, don't you?" she whispered to Jake with a glint of mischief in her eyes.

Jake's eyes widened in horror as he realized the implications of Sophie's words. He could feel his heart pounding in his chest as he tried to come up with a plan. He looked at Sophie, panic written all over his face.

"What?" he stammered out nervously.

Sophie chuckled darkly before pushing open the door to their bedroom. "Well, let's just say we owe our parents one hell of a blowjob," she said with a sly grin on her face.

Jake gulped audibly before following Sophie into the room, his mind racing with fear and resignation. He knew that this was going to be one of the most humiliating experiences of his life, but he couldn't deny the thrill of it all.

As they entered the room, their parents were both still entangled in each other's embrace. Their moans had turned into soft curses now as they continued to explore each other's bodies.

Sophie hesitated for a moment before walking over towards their mother. She could feel Jake's eyes on her back as he stood by the door nervously.

"Mom," she said softly, trying to sound innocent. "Are you really gonna let us sleep in here tonight? It's kinda crowded."

Jake watched in horror as Sophie crawled onto the bed, her hands and knees inches away from where their parents were still entangled with each other. He felt a mix of nausea and arousal as he followed her, his mind racing with fear and resignation.

"Mom," Sophie said again, her voice barely a whisper. "Can we switch to the other bed?" she asked, avoiding eye contact with their parents.

Jake's father let out an exasperated sigh before turning towards Sophie. "Fine," he said gruffly. "But don't take too long in there."

Sophie shot Jake a wicked smile before getting up from the bed and crawling towards the other room. Jake hesitated for a moment before following suit, his heart pounding in his chest.

As they sat on the other bed, Sophie turned towards him with a smirk on her face. "Well," she said sardonically. "That takes care of that."

Jake couldn't help but feel a sense of relief wash over him at the sound of her voice. He knew that this was going to be one of the most awkward experiences of his life, but at least now he didn't have to witness their parents getting intimate with each other.