Follow up from my original post here: https://www.reddit.com/r/BallbustingStories/comments/1hs4uc0/my_nut_crushing_step_sister/

I've received a lot of requests for more stories, but unfortunately our parents were only together for 3-4 months after the ballbusting in Ashley's bedroom, and I only visited bi-weekly. There were however a few other busts that occurred, but not many really had enough contents to warrant a full story...

The first experience lined up with so many factors that helped make it memorable. After that there was a handful of mini play fights or situations so I'll try to share the most memorable ones below (I may embellish these ones just a little but the jist of it did happen):

2 vs 1 Playfight:

A couple weeks after the bedroom busting I returned for the weekend and remember Ashley kept teasing me about dropping me to the floor. As soon as the parents weren't around she'd say things like, "Do they still hurt?" I was terrified that she'd mention it to (or in front of) the parents but luckily she seemed to understand it was better as a secret between the three of us.

I recall Lisa (her older sister) grabbing me and pulling me into her room (along with Ashley) to inquire about the story she'd been told. Ashley had shared the events of my last visit, and Lisa eagerly asked if it was true. When I told it was, I remember Ashley being so freaking proud of herself, and Lisa was trying hard to contain her laughter from our nearby parents, while also being like "Oh my god! Are you okay!?"

Ashley was so excited to get her sister in on the fun, however Lisa clearly had mixed feelings. She was a year older than me, and when you're a teenager the year gap seemed larger. Although she thought it was funny and I'm sure part of her wanted to join in more, I expect targeting the manhood of her younger step brother also gave her some hesitation.

Nothing happened that weekend just because it was too busy and we didn't end up having much privacy, but the next visit was better.

The three of us were back in the basement rec room (the official hang out for the non-parents). The events of what Ashley did came up again fairly quickly and she seemed to think I should be a good sport and just let her sister have a go at kicking me in the nuts, as if it was no big deal. She clearly didn't understand how sensitive a man's nuts were, and believed it was just a fun / funny thing to do. Of course I did NOT agree to it as I knew standing there with my legs wide open for the older sister to boot me would likely be flagged as unusual / creepy to Lisa. But, I was secretly super excited by this suggestion and hoping I could maneuver us into a ballbusting three-way. Lisa clearly thought it was entertaining to learn that her younger sister had dropped me to my knees, but wasn't yet onboard with partaking herself.

Lisa was comfortable with play fighting, and as the three of us tussled about, Ashley would constantly throw kicks, knees and punches towards my crotch as I danced about to block them. I would alternate back and forth between blocking Ashley and shoving her onto the couch and then wrestling a bit with Lisa, picking her up or smashing her with pillows. Ashley kept encouraging her sister to "get him where it hurts", and I remember as I wrestled Lisa she'd glance down at my crotch, clearly considering it and slowly working up the nerves to try.

Finally I teased something along the lines of, "Lisa's too sweet and innocent, she'd never have the nerves to kick my balls of steel!"

Once I said that, she took it up a notch and became more competitive and started aiming at my crotch with a few light kicks and mostly knees.

The whole time I was acting like I didn't want to be hit, but kept it lighthearted. "Oh no," I teased, "Looks like Ashley the Nutcracker has some competition in the nut cracking department as Lisa the destroyer has entered the ring!" I would bounce between the two and inevitably one of them landed a hit and I'd make a comical yelp or high pitched squeal which they thought was hilarious.

"Scotty is just too fast," I exclaimed as I'd push them over and scoot away. "But wait, the tag team is surrounding him! Let's see if he can evade their -"

BAM!

When my body was facing Lisa, Ashley came up behind me and slammed her fist up hard, uppercutting my balls with a sickening CRUNCH. I crumpled to the floor as Lisa's eyes and mouth opened wide and her face lit up in laughter. "Holy shit I can't believe he survives this, poor guy probably can't ever have kids now".

"No kids for Scotty!" Ashley declared as she jokingly stomped down lightly towards my protected crotch.

Eventually I made my way back to my feet and they managed to connect with few light hits here and there. Lisa never hit me too hard, but she warmed up to the idea of targeting my manhood with her sister.

At one point I wrestled Lisa until I had her hands behind her back and used her as a shield against her sister. "Perhaps The Nutcracker has turned her back on her tag team partner! Free shots!" I declared, holding Lisa for her sister to attack.

"Never!" Ashley replied, and before I knew it I'd been kneed by one of them, kicked by the other, and Ashley had my arms pinned back. Of course I could have broken free if I wanted, but I let them have their fun.

"Get him where it hurts!" Ashley cheered. The parents weren't home and she was being comically loud.

Lisa tried to connect but was laughing too much.

"Crush his plums!" Ashley added, clearly loving making her sister laugh. "Kick him in the Junk!"

Through the giggles Lisa finally grabbed my shoulders and raised her knee into my crotch.

It was so light we all laughed.

"Harder!" Ashley encouraged, still in an animated, funny voice as she tightened her grip on my arms.

Lisa kneed me a bit harder, but she still had the giggles.

"Harder than that!" Ashley boomed.

Lisa finally composed herself, took a deep breath to steady her nerves, and planted her foot back to get some momentum. She looked down at me as she tightened her grasp on my shoulders, "Sorry, this might hurt -"

THUMP!!

Lisa drove her thigh and knee hard into my junk, driving my hips up into the air and holding her leg between mine as my body was lifted onto my tippy toes and my balls were squashed.

My legs felt like jelly and as she released my shoulders and stepped back to let me drop to my knees I was pulverized a second time as Ashley unloaded on me with a punt that flew up between my legs from behind. She crushed my balls as I crumpled down.

The sisters exploded with laughter, and I just lay on the floor convulsing in agony (and pleasure). I remember there was a good minute where it hurt so badly I was actually worried that some real damage had been done. I couldn't stand for 5 or 10 minutes, but I was okay.

The Hardest Punch:

I honestly can't recall what I had done, but there was a time when Ashley was furious at me. I was a pretty good kid and really didn't try to upset her (or anyone), so her rage caught me by surprise. The anger exploded when we were in the living room, I was laying on a couch and she came at me with fury in her eyes. She slammed a pillow down hard on my face which hurt my unprotected eyes and I reached up in pain. She immediately pounded down on me, with what felt like a full force hammer style fist to the balls. The pain was excruciating. It felt like she'd hammered my hips down through the couch (balls first). I folded up and dropped to the ground in agony. As a memory, it was hot, but at the time I was upset, it was the hardest she'd ever hit me and it crossed the line of being a fun game and into her actually wanting to hurt me out of anger. I remember Lisa saw it happen and all the commotion caused their mother to get involved. When I heard her coming, I tried to compose myself, but I could barely stand. Despite the pain, I was too humiliated to tell her what happened, but she could probably guess from the way I was hunched over when I limped back down to the basement. Ashley didn't get in any trouble, and her mother ended up taking me back home the next day. I remember during the drive she was gently trying to get my side of the story, but I just insisted I was fine and she just hit my face with the pillow, to which she replied something along the lines of, "Well she told me she felt really bad, and I am sorry my daughter can be a bit aggressive. Maybe just give her space when she has the grumps."

Her "Finishing Move" The Gaspedal

After our first 2 vs 1 play fight I recall Lisa wasn't around too much for them. I think maybe she had a bf and just wasn't there when I was, and when she was, she wouldn't really get as involved, perhaps she'd gotten her fill. However this particular day Ashley was adamant and really wanted her older sister to help again.

Ashley and I were wrestling in the basement rec room, only this time Lisa was stuck on the couch with MTV music videos playing on the TV, but she was mostly enjoying the show Ashley was putting on.

"Say I'm the Champion!" Ashley was demanding, jokingly as we often did to tease each other.

"Never!" I replied, I lifted her up and tackled her onto another couch and somehow ended up pinning her down by basically sitting on her lap.

As she struggled she managed to reach around my hips and throw jabs into my crotch, a few got me pretty good and Lisa cheered for her sister. "You get him Ash!"

"Oh, I'll GET them alright!" Ashley teased, and she began opening and closing her hands making a grabbing and squeezing motion towards my nuts.

"Oh shit!" I panicked and grabbed her hands to keep them away from my manhood (which was usually stiffening and tucked up into my waistband to avoid detection). As I tried to stand up and get away I quickly realized it was in fact her who now controlled my hands. As I planted my feet on the ground and stood up I end up straddling her legs, facing away, and she now had my hands locked behind me. I looked down between my legs and saw her sexy feet ready to strike.

"Oh shit -" was all I could say before she began pummelling me with flutter kicks to my dangling orbs. I was completely fucked, the way she had me I had no where to go and she connected with a fury of snap kicks. Even as I dropped to my knees she was still able to drive kicks into my helpless balls from behind until I was finally able to pull my hands free and collapse on the ground desperately massaging my throbbing nads as the two girls laughed at my pain.

"Oh my god Ashley," Lisa laughed, "Don't send him to the hospital, mom will be pissed!"

"All he has to do is say I'm the Champion! It's not my fault!" Ashley declared. "If he wants to be a cocky prick then I guess maybe I'll have to crush his balls?" She grabbed my ankles, and I knew she was trying to set me up for what she'd loving declared to be her "finished move".

Despite the pain, I did secretly love seeing her standing over me, spreading my legs and stepping down on my most vulnerable bits and before I knew it she was pumping her foot hard into my cock and balls.

"Gaspedal time!" she cheered, encouraging Lisa to come over and help.

Ashley did not know how to go light. I honestly don't think she was a crazy sadist or anything, I just think I was one of the few sets of balls she'd busted, and I could probably take much more pain and force than a normal guy. However even with my "balls of steel" I needed to grab her ankle and use all my upper body strength to stop her from stomping my balls into mush as she leaned into me with all her weight while simultaneously pulling my ankles towards her for added pressure.

My balls were completely compressed, bursting to the very edges of my sack as her sexy foot pumped and twisted into me. I couldn't say a word as Ashley called out, "Come help! Come pull his hands away for me!"

Lisa came over and tried to pry my hands away, "Fuck no!" I managed to squeal out, and she realized I wasn't letting go of that ankle.

In frustration Ashley raised her other foot off the ground and applied her full weight onto my balls as she bounced a few times before finally stepping off the other side.

I gasped in pain as the weight was finally removed from my testicles, but as I laid there trying to catch my breath, holding my tenderized nuts, suddenly her foot slammed down on top of my hands/crotch again. I opened my eyes just in time to watch my younger step sister step right up on my groin, crushing my hand and balls, before stepping off onto the other side.

I made a pathetic, "Ooooooooooohhhhhh" sound as my nuts were compressed beneath her 110lbs frame, and both her and Lisa burst out laughing at my sound.

"OOOOOOOOHHHHH" Ashley mocked, as she held her own imaginary testicles and mocked my pain. She reached down and squeezed my nipples, as soon as I removed my hands to block her nipple attacks she slammed her foot back into my junk, and stepped over me again.

"OOOOOHHHHH!" I couldn't help it, the sound was just being expelled through my lips.

Lisa and Ashley exploded in laughter as I writhed on the floor between them. "Now say I'm Champion!" Ashley continued.

The pain and excitement was too much, I was half giggling, half gasping and couldn't get the sentence out if I wanted to.

CRUNCH!

Ashley stepped hard on my groin, and raised her other foot up, balancing her weight on my balls as long as she could as she bounced down.

"Say -"

SQUASH!

"I'm"

SQUISH!

"Champion!"

SQUASH!

As Ashley hopped off, I was shocked to see Lisa's (slightly larger) foot, step down onto my aching balls. It was a sexy sight as Ashley excitedly reached out to help with her balance as my older step sister took a turn standing on my balls.

"OOOOOOHHHHHHH!!!!" my primal moan was even louder as Lisa was a bit taller and heavier than Ashley and at first my balls were completely unprotected as her weight crushed down on them. I quickly grabbed her ankle with both hands and pushed back with as much force as I could manage to stop my balls from exploding beneath her.

In retrospect, she probably only balanced on me for 3-5 seconds but it felt like forever as I stared up at the two laughing down at me, desperately hoping the pain would end.

She stepped off and Ashley hugged her like she'd just accomplished a lifetime achievement. Lisa looked down at me, trying to cover her laugher with her hands. "I can't believe I did that! Oh my god, are you okay!?"

I was in pain, but I remember my dick was rock hard and about to explode and I couldn't respond. All I could do was try to keep myself protected / covered and hope they didn't see my cock spasming beneath my jeans.

"Shit," Lisa teased, "I think I broke our step brothers balls!"

"And yet - " Ashley added as she tried to drive the heel of her foot down between my tightly closed legs, "he still hasn't declared me Champ!"

Ashley stomped down several more times as I tried to block and eventually ended up trampling my cock and balls for a few more seconds as my cock erupted in my pants.

"Your the Champ!" I squealed out. "You're the champ! Just get off!!!"