A Brother's Limp Problem, A Sister’s Helping Hand

*All characters aged 18+*

*Contains: >!impotence, sph, castration threat, sub male!<*

Jeff’s groans echoed throughout the house, making his sister Amy giggle. She paused her yoga video and headed to her brother’s bedroom, bouncing and kicking her legs. As per usual, his door was unlocked. Amy had walked in on him with his dick in his hands so many times, he had given up trying to keep her out.

With a huge smile on her face, she swung open the door and walked in like she owned the room. It was still funny to her that Jeff never realized she intentionally waited until he was tugging his dick to annoy him. It was so funny to see him get all flustered about it! Of course, there was absolutely no chance that would happen today, or anytime soon, for that matter.

“Awww, what's the matter, big bro? Are you still crying about your dead dickie?”

Her brother was lying on his bed in his boxers, legs spread and gently cupping his junk. He shot her a hurt look. “Amy, this is serious! I can’t believe Jenna kicked me that hard… I’m lucky she didn’t break my balls, and I still haven’t been able to get hard. Dr. Madison says she doesn't know if I will ever be able to have an erection again.”

His sister crossed her arms under her boobs and faux-pouted. “This is sewious Amy, a giwl bwoke my willy and now my bean bag weally, weally huwts,” she mocked.

“Amy, come on! Jenna kicked me just because I told her I like her!”

“Duh, if you confessed to me, I’d also kick your balls up into your throat. And hey, look at the bright side: mom will never have to worry about you ever getting a girl pregnant. I’ll make sure to tell all the girls I know that you can’t get it up anymore,” Amy said and gave him a thumbs-up.

“This is like a disability! Would you also make fun of me if I was in a wheelchair?”

Amy’s smile got wider and wider as they talked. “No, big bro, for your tiny, permanently limp dickie to count as a disability, you had to have a chance at ever having sex with a girl. If anything, Jenna did you a favor. Now you *know* you’ll always be a loser virgin.”

“You're such a bitch…”

“Yup, thanks for noticing!” she said brightly and sat next to him on his bed. There, she watched her brother cradle his balls like he had to support their weight.

“You're only saying that because you don't know what blue balls feel like. It's been a month since Jenna kicked me. I haven’t gotten off in a whole month! Do you know how long that is for a boy? I NEED to cum!”

“Oh please, every girl knows blue balls aren’t real. Besides, can't you just like,” she pinched two fingers together and moved them up and down in very small, very fast strokes, “jerk your little wiener like this? It doesn't have to be hard. If you want, I can give you tips on how you can rub your thingie like a girl rubs her clit. It’s basically the same size, after all.”

“It's not that small,” he said, cheeks flush with embarrassment. A snort told him she knew that was a lie. “And no, I can't. Dr. Madison says my penis is completely paralyzed due to Jenna’s kick, so I can't feel anything. No matter how much I try, I can't get there. And blue balls ARE real, Dr. Madison said so herself. There's a medical term for it but basically, my balls are full to the brim, and if I don’t shoot a load, they’re going to get inflamed.” He groaned again. “Ugh, they hurt almost as bad as when Jenna kicked them. They're so bloated, it feels like I have a football dangling between my legs that’s filled with cum!”

“Gross, dude, don't tell me that!” Amy gave her brother a friendly punch to the crotch, making him flinch and then curl up in pain. He kicked his feet in pain, groaning in a squeaky voice. Amy thought it looked hilarious.

She watched him hold his stupid nuts for almost a minute, laughing to herself. When he finally stopped crying about his swollen junk, she said, “Hey, at least you can still feel your balls. Why don't you use those to jerk off?”

“Jerk off… with my balls? That doesn't make any sense. Yeah, it feels nice when a girl is touching them, but when I do it, it's no different from touching my elbow or my knee. Maybe if I could get a girl to rub them.”

His words hung in the air, and the two siblings both knew they had the exact same thought at that moment.

Jeff cleared his throat, shifting around awkwardly. “Amy, do you think you could, uhm… rub my balls better?”

“You can't be serious! Why would I whack off my own brother! And what would I even do with your balls, yank them up and down like I'm milking a cow?” Actually, that sounded kind of fun.

“Amy, please! Dr. Madison said multiple times I have to make myself cum or she might have to amputate my balls! I don't want that to happen, and I can't ask anyone else!”

She stared at the bulge in her brother's underwear. “True, if you asked Jenna she would tie your balls to her dog’s collar and play fetch with it in the park…” Amy said and snorted. But the longer she thought about it, the more she started to see that Jeff was kind of right. Her loser virgin brother really couldn’t ask anyone else.

She was the only one who could help him get his cum out. Which meant she needed to touch him down there a lot. It was her turn to look away embarrassed. “F-fine… but you better not tell anyone about this!”

“Thank you, oh, thank you so much, Amy! You're saving my balls!”

“Yeah, yeah…” she muttered and slid down the bed, kneeling between his legs. “So, do I just…?”

“Y-yeah…”

Amy reached for the elastic band of her brother's boxers. She hesitated for a moment, then opened his fly instead and stuck her hand inside.

Jeff sucked air through his teeth when he felt his sister plunge her small hand down his boxers, the back of her hand brushing along the miniscule length of his limp penis.

“If I didn't know that Jenna has kicked you impotent, I would be almost offended that you're not pitching a tent, big bro,” she said. As she pulled his balls out through his fly, his limp penis flopped out as well. Amy couldn't help but laugh. “Ahaha, look at that shrivelled little worm! It's just a little nubbin!”

“It gets bigger!” her brother protested.

“Not anymore it doesn't,” she said with a smirk. “Woah, I think your dick was bigger back when we still bathed together as kids. What happened, did Jenna kick your dick so hard it went up inside you?”

“I-it’s called being a grower, some guys just don’t have-”

“Psh, save your excuses, tiny.” Then she looked at his balls, still burgeoning with a bouquet of bruises from when they violently made an acquaintance with the foot of the girl they were hoping to pump full of spunk. Holding her breath, she traced a finger along the outside of his nutsack.

“Wow, they must still be so tender. I can't believe Jenna did all of this with just one kick. And she broke your dickie too. Amazing. Boys always act so tough, but you're really weak between the legs, aren't you?”

She poked the right ball with a finger, listening to him breathe out hard.

“They're so big, it's completely different from that wrinkly dicklet. Are you sure they aren't still swollen from Jenna smashing her foot into them?”

“Y-yeah…”

Amy giggled. “If you say so…” Suddenly, her hand closed around his ballbag. She wasn't squeezing her brother's balls, but he still felt a deep sense of dread and fear when he felt Amy hold all that could still be called his manhood in her little hand. “So, I guess I should, like, massage them? Like this?”

She started moving her hand around in circles, rolling his nuts around in her palm. They felt strange, so thick and warm but at the same time, so fragile. A girl had rendered her brother unable to jerk off, let alone have sex, just by kicking these two strange orbs.

The thought made Amy feel incredibly powerful – but she also blushed for some reason. The heat in her cheeks – and much lower between her legs too, she noticed – left her feeling very confused.

“Hey,” she said to distract herself, “a beautiful girl is rubbing your marbles for you, and you don't even get hard? That's super rude!”

“I told you, I can’t- EEK!”

As punishment, Amy had given his contused nuts a hard slap. She expected Jeff to get angry, to shout at her and chase her away, but he just squeaked like a girl and did nothing.

*No, that's not true,* Amy thought and watched a little pearl of clear precum swell on the tip of her brother's limp mini penis. *He actually likes it!*

“Oh? I think Jenna has done more than just break your dick and scramble your eggs, big bro. I think she crossed some wires up in your brain as well.”

"W-what do you mean?” Jeff asked and looked so unlike the older brother she had grown up with. He looked afraid, excited and so *unmanly*.

*He looks like a sissy,* Amy thought and grabbed his balls harder in excitement.

“I think when Jenna, the girl you've had a crush on for years, heard your confession and decided that you needed to get kicked in the balls for it, your brain accepted it. Jenna thinks this wittle peepee needs to be broken, and you agree. You don't get to have big, scary boners, you only get a cute little nub where real men have dicks. And your balls? They're not for getting fondled by girls…”

“T-they’re not?”

“Nuh-uh, they're for getting hurt by mean girls. Just like this!” She slapped her open palm into his nutsack again, watching the plump balls wiggle around.

Amy grinned when she heard her brother moan like a bitch.
“B-but it hurts,” he weakly protested.

“Good, because that's how boys who get their peepees broken have sex. If Jenna hurts your ballsies, that must be what they're good for. But you know what?”

“What?”

Amy smiled at her brother from between his legs. “That means there's a very easy way to get all of that pent-up cum out.”

She sat up and grabbed his balls tightly in her left hand. She raised her right hand, palm open, ready to smack his sack.

“Amy…” her brother muttered.

“Don’t worry, I know this won’t be like an orgasm you had when you jerked off. This will be a sissygasm, where I hit your balls until they give up and make you spurt. So I won’t stop until you finally spurt!”

*SMACK!*

“Hnngh!”

With his balls trapped in her hand, they were forced to endure all of Amy's slap rather than wiggle out of the way. She immediately raised her hand again.

*SMACK!*

“Ffffuh-”

“Take it, Jeffy!” Another slap rang out. “You have to take your ball bumps!” And another slap. “Let’s get all of that cum out!” Her brother’s large nuts felt so warm and soft against her hand, it was really fun to slap them around. “Either I slap you in the testes or Dr. Madison snips them off entirely. Snip-snip, now I have a sister!” Amy smacked his balls again, starting to find a good rhythm. “You don't want that, do you?”

“N-nooo,” her brother wailed, his voice cracking every time he felt his sister's hand collide with his nuts.

“Say it, Jeff! Say you want me to hit you down there!”

“Please… h-hit my balls, Amy! It’s the only way I can cum!”

A big red hand print formed on Jeff's balls, showing exactly where his sister kept hitting him.

“Beg for it, bitch!”

“Please, please hurt my balls, I beg you! I need you to hurt my balls right now so I don’t lose them! Bash and bust them like Jenna did!”

“Good boy!”

Encouraged by her brother, Amy smashed her hand into her brother's testicles faster and harder the longer she was beating them up. At some point, she balled her hand into a fist and gave him real punches instead of slaps. By the third punch, she hit his plums so hard, they visibly squished to a fraction of their normal size.

To Amy's amusement, her brother hid his face under his hands but kept his legs spread while she pummeled his balls.

*Even if he closes them, I'm not letting go of his nuts!*

“Girls own you, Jeff! We broke your dick, and we own your balls! How does it feel to be such a pathetic loser that your sister needs to beat your balls? That a girl needs to hit you in your special place to make you shoot your cummies because your penis is useless?”

“It hurts! But it… it feels goooood!”

“Show me how well you can spurt your cummies from having girls hurt your nuts, big bro! Show me!”

His hands clenched and he held onto his sheets as she laid into his nuts. And then, with another hard punch that rocked his bruised and backed-up balls, it happened: Amy watched her brother's small, shrivelled penis shiver and then dribbled out a thick glob of pure white. And then another, and another.

Amy didn't stop hitting Jeff in the nuts as he had a completely pleasureless orgasm. Each punch forced out another thick wad of baby batter from her brother’s limp penis, coating his stomach, the bed and Amy's hand that was wrapped around his sack.

“Wow, Jeffy, that's so much! See, you can’t have sex like a man, but you can still cum with a defective, shrunken penis! Good job, big bro!”

Her brother didn't answer, hiding his face again and whimpering. Amy smiled when she heard her brother’s sniffles. *He’s such a cute little sissy now,* she thought.

She grabbed his nuts and inspected them. They glowed red where her hand battered them, but were they smaller now? With how much they spurted out, they had to be, right?

But maybe her punches had made them swell up in a different manner. Amy smiled and snuck her clean hand between her own legs. She had drenched her yoga pants.

“That was fun, big bro. No need to thank me for making you spurt your cummies, that's what a sister is for, right? We better do this tomorrow again. With your penis not working, I need to make sure I punch all the cummies out of your balls!”