Sadistic step daughter

This is a repost of a story I wrote a few years ago. I've corrected some mistakes and improved the formatting.

Mark was basking in the comfort of a quiet evening when his stepdaughter, Sandra, entered the living room. At 18 years old, she was the stark contrast to her mother, Mary, Mark's new wife. Mary was tall and exceedingly fit due to her past as a professional soccer player. On the other hand, Sandra was petite, standing at a mere 5'2". Their only shared feature was their distinctive chest.

Mary had a remarkably full chest, with each curve perfectly rounded and surprisingly perky despite their size. Sandra's were almost as impressive but looked even more prominent due to her small frame. She seemed to enjoy displaying them at every given opportunity.

On this particular night, Sandra wore a skimpy tank top that left the lower part of her chest exposed, a clear indication that she was not wearing a bra.

"I'm going out," Sandra announced, heading towards the door.

"Hold on! You're not leaving dressed like that," Mark interjected, positioning himself between the door and Sandra. "Your mother isn't here, and she mentioned that you aren't allowed to go out this week."

"You could get attacked by some creep," he added.

"What's wrong with how I'm dressed?" Sandra questioned, tugging lightly at her top. The movement caused her breasts to sway, creating a distracting sight.

"And I can handle myself," she continued.

Mark chuckled. "You're barely 5 feet tall and not particularly strong. If a guy were to corner you, he could easily overpower you," Mark reasoned, careful not to let his gaze drift towards her chest.

"Alright, then stop me. If you think it'd be that easy," Sandra challenged, brushing past Mark to open the door.

Mark grabbed her arm, pulling her away from the door. Sandra, however, didn't appear to be fazed by his assertiveness. Instead of reacting in fear as he anticipated, she simply smiled, stepping back and landing a swift kick between his legs. Mark immediately dropped to the floor in pain, adopting the fetal position common to men after a painful blow to the groin.

"See, I told you I could handle myself," Sandra giggled.

"And I didn't even kick that hard! You should ask John how it feels. He cried like a baby," she taunted.

Mark couldn't conceal his surprise. His son, who stood at 6'3" and had been practicing karate for years, couldn't possibly have been reduced to tears by his petite stepsister.

Sensing his disbelief, Sandra added, "Remember when he was limping last week? He claimed he'd pulled a muscle during karate practice. But the truth is, he was a little too intrigued by these." She lifted her chest slightly, presenting Mark with a full view from his position on the floor.

"I don't mind being admired, but touching is a different matter. I wouldn't let my step-brother just grope me. I kicked him so hard his feet almost left the floor!" Sandra laughed.

Anger simmered within Mark. He couldn't let Sandra get away with such humiliation. Rising slowly, he glared at his stepdaughter, "Do you think I'll let you off the hook? You won't catch me off guard again. I'm going to..."

His threat was cut short when Sandra's booted foot collided with his groin, causing him to collapse on the ground, writhing in agony.

"Men, they never learn," Sandra sighed. "Now you understand the severity of my kicks. And consider this a favor; you now know what'll happen if you anger mom. Her kicks are stronger, and she doesn't hold back."

"And I wouldn't mention this incident to mom if I were you," Sandra added, addressing her stepfather who was still writhing in pain on the floor. "I might get grounded, but she would give you a hard time for not being able to keep me from going out," Sandra said, her words punctuated with giggles.

She abruptly halted, a smile dawning on her face.

"Ah, but this makes for excellent blackmail material. I've just had a brilliant idea! From now on, you'll follow my commands, or I'll report this to mom. And if you think you're in pain now, wait until mom gets her chance. Dad always walked cross-legged due to his poor balls," Sandra smirked.

Mark was in disbelief at what he was hearing. If his petite step-daughter could inflict such pain, he dreaded the damage his new wife's formidable legs could cause. He doubted his ability to endure much more.

"Alright, let's do a test. I need to check that you'll do whatever I say. Get on your knees and show me your nuts," Sandra commanded, a determined glint in her eyes.

"Are you out of your mind! I'm not showing you anything!" Mark protested, his voice still slightly high-pitched from the pain.

"If you don't, I'll kick you again. Twice!" Sandra threatened.

Fear consumed Mark at the thought of enduring further agony. Overcoming the waves of nausea, he slowly rose to his knees and reluctantly exposed his swollen and aching testicles.

Upon seeing this, Sandra giggled and quickly took some pictures with her phone.

Mark felt a sense of doom. He was shocked at his own naivety, but the prospect of further torment had scared him into compliance.

"Haha, they're so red! Are they hurting a lot?" Sandra taunted.

All Mark could manage was a pained groan.

His discomfort escalated as Sandra's booted foot connected with his testicles for the third time that evening, each kick more potent than the last.

"And now?" Sandra asked, still giggling as she exited through the front door.

By the time she closed the door, Mark was vomiting on the floor, with waves of excruciating pain emanating from his groin.


The day after the incident, Mark's testicles were still sore. Despite extensive icing, they had noticeably swollen and taken on a dark blue hue. He was fortunate that Mary, his wife, was away on a business trip; otherwise, he would have had some awkward explaining to do. As he pondered over how effortlessly Sandra had hurt him, she waltzed into his room.

Her attire was even more revealing than the previous night, and he noticed with dread that she was wearing what appeared to be steel-toed boots.

"I'm going out," Sandra declared, an amused glint in her eyes. "What do you have to say this time?"

"Um, okay?" Mark replied hesitantly, knowing he definitely couldn't handle a repeat of the previous day's treatment.

"Not the right answer, but closer than yesterday! You're improving. The correct response was, 'How much do you need?'" Sandra laughed. "Show me your nuts! I want to see the results of yesterday," she added abruptly.

"No, please! They're still very sore!" Mark whimpered.

"I don't think you understand our new relationship. When I say 'Show me your testicles!' you say yes, you don't say 'No, please! They're still very sore!'" Sandra retorted, imitating his pleading voice. "This time, if you don't do it quickly, I'll give you two kicks and a good squeeze."

"But you still kicked me last time," Mark protested weakly.

"Well, one is better than two, don't you think?" Sandra replied, grinning. "Now show me those testicles! You'll regret it if I have to fish them out myself!"

Reluctantly, Mark revealed his aching testicles, hoping against hope that his stepdaughter would be gentler this time.

"Well, they're not that bad! I've seen much worse," Sandra teased, snapping a quick photo with her phone.

Suddenly, she grabbed his exposed testicles in a vice-like grip, leading him toward his desk and instructing him to place his hands on it. She stayed behind him, holding him firmly by the testicles.

"I'm feeling generous tonight, so I'm giving you a chance to get off lightly," Sandra said, giving him a light squeeze. "I'm going to deliver a medium-strength kick. Let's say a 5 on a scale from 1 to 10. If you manage to stay on your feet, you're done for today and you can go back to nursing your testicles," she explained, smiling. "But if you fall, I'm going to squeeze these for a full minute!" she declared, increasing her grip to almost unbearable levels for a few seconds.

Mark was in agony again and would have collapsed onto the floor if not for his stepdaughter's grip. He couldn't handle a minute of this! He had to stay upright! Surely he could endure a medium kick from an 18-year-old girl without collapsing, he tried to convince himself.

"Ready?" she asked, releasing her hold on his testicles and taking a step back.

"Please! Wait!" Mark pleaded.

"Well, ready or not, here I come!" Sandra exclaimed, launching her left foot into her stepfather's vulnerable area.

Mark had just enough time to see her steel-toed boot slam into his naked testicles with force before the familiar, excruciating pain washed over him. He attempted to stay upright but the kick had been too perfect, and he crumpled to the floor.

"Haha! Too bad for you!" Sandra laughed. "And I even used my left foot to give you a chance," she added with a smile.

"Well, I guess you know the drill by now. Don't keep me waiting!" his stepdaughter ordered.

Mark, still enveloped in a haze of pain, grasped the veiled threat. He wasn't certain his testicles would endure a minute of squeezing, but he couldn't afford to give her any excuses to inflict more punishment on his already aching body. He slowly rolled over and moved his hands away from his groin, affording his stepdaughter easy access to his most vulnerable area.

She gradually took hold of his testicles, taking her time to find the perfect grip before suddenly clenching with seemingly immense force. Mark's pain escalated to new levels. His entire reality was now centered on the two orbs being so sadistically crushed together by his stepdaughter. After what felt like an eternity, the pressure abruptly ceased, and he was able to resume the fetal position, a position he had become all too familiar with.

Sandra scrutinized her handiwork on the floor, a broad grin spread across her face. That was fun! She knew she would have to curb her kicks before her mother's return if she didn't want her stepfather's black and blue testicles to give away their secret, but squeezing was just as amusing!

She snagged a fifty from his wallet before making her exit, aware that he wouldn't have dared to protest - even if he wasn't already too consumed by pain to notice.