No sweat - No sweet (casual, incest, con, no deaths)

- "Aaallright! Everyone, are you ready?"

- "A-a-are you sure you want us to do this..?" - Felix's silly older sister, Gina said

- "Of course! You promised me to get more sexy, you need someone to check that happens"

- "I hate you! I am an innocent princess, you're supposed to look after me, not make me do these disgusting… poses" - Hannah, The youngest sister proclaimed all while standing in an uncomfortable-looking bridge pose

- "Look, if you really wanted to stay out of this, you wouldn't agree to our bet… …Ughh… Just do as I say, I promise I won't do anything sexual"

- "No fuck today?? What a downer…" - Gina said laying on her belly, ass slightly up - "So what's your 'special' sexy training if not more sex?"

- "I want you to be more flexible, that's why I brought us together. I promise, you will thank me later. I'm doing this for your sake"

Felix looked into his phone, scrolling through some weird looking pictures drawn by degenerates on the internet. That's where he'll be taking today's inspiration, even though those poses are just impossible in real life. A girl on her belly was holding her legs behind the back, which formed a full perfect girlwheel. Some hard stretches will surely help Felix's sisters make their movement more elegant and seductive

- "Alright! First exercise - this!"

After some confusion, Hannah broke the silence - "What? That's… I can't do that!"

- "I'll help you sis, just lay and I'll help stretch you"

- "No! No no no no NO! Get away!"

- "Hey, why don't you start with me. You've been stretching her enough lately, didn't you? Let big sis show how it's done"

"Fair" - Felix went behind her. Gina tried to do her best with the wheel, but ultimately couldn't lift her arms and legs of the ground.

Felix took her by the arms, that were connected to legs. "Try pulling your legs. Yes, yes, like that… No, not like that… Ugh, let me try!"

He placed his leg on her back took her by the arms and pulled them in two directions. *Crack*

- "AAaaGHH" - this weird grunt left Gina's mouth. She wanted to scream more, but suppressed it to not scare her sister - "I think you… Broke something in me". Hannah looked with disgust, then with distrust. "I am not doing all that"

- "Come on sis… *Cough* It feels good after a few sec-AAAUGGHannah" - Without any warning Felix pulled her again. - "No, aaghh… You definitely broke my spine this time… ahhh"

- "Sorry… I thought…"

- "No problem bro… I… Just can't move…"

- "Basically, after our training you should be standing like this" - Felix went over to nearby counter and leaned on it. - "I want your body to curve, with your ass on top" He looked at Hannah for a second - "Especially you"

- "Me? Why me?"

- "You have the curviest ass and the tightest pussy of everyone I know. Your boobs are so small, they continue the natural flow of your slim body. I really want to see you become the most attractive girl in the world"

- "No way am I doing this, big bro, you are a massive perv, talking about my boobs like that… Wait, did you say they're small!!??"

"Just trust me". In a swift motion Felix took Hannah's hands and put them on counter. "Sorry if I break a few of your bones"

"What? AUUGHH!! THAT THAAAUUUUGH!!!" - Felix used his elbow to attack his sister's spine - "Stop stop stop stop stop!!! That hurts please stop" - Hannah dashed away trying to catch a breath. - "Ahhh, it hurts… Please…"

- "Hannah do as your brother says" - Gina said, still immobilised on the floor. She was observing the situation all this time, even though her bones still hurt like hell

- "We gotta do this. I promise, you will become a beautiful flexible lady"

- "Oh no… Oh god… Just put your penis in me, here you go..! Let's do that instead" - Hannah started to quickly undress herself, but her brother stopped her

- "*Sigh* I guess we can use some help, if that's too much for you" - Felix somehow handcuffed Hannah, without her even noticing. She tried to object, but his persistence made her doubt it, what if this time it won't hurt as much the last one. This time he led her to a small device in the corner, it looked like two steamrollers, but for people. Hannah jumped in between the cylinders, and it felt good for a second, like she was being turned into a pancake. But she didn't finish the dive, something caught her on the one side, and now her foot was stuck on the other side. Her body was suspended by the squeeze machine

- "Do your best stretch and I'll see what I can help you with"

- "Okay…" - Hannah tried to adjust herself, to no avail. She looked like a small ramp connecting the floor to the roller

- "Good, good. But you're supposed to kind of flow down on the floor, then forward. Right now it seels like you can only go in a straight line"

- "And what will you do?"

- "Break every single bone until you flow" - Felix smiled

- "what"

He took a baseball bat out of nowhere and hit her. Hannah screamed and moved slightly to the bottom. Another hit. She moaned, to her and other's surprise. But it didn't last long, before another hit of solid wood interrupted her. With each hit she moaned harder, moved lower and sometimes even wanted to thank her brother, but didn't know why. At some point he stopped and looked. "Sorry sis, I'll have to remove your shirt to see it properly"

- "No problem" - She replied instinctively. Before even thinking. "Wait what no problem? Yes problem! He'll see me naked!" she thought

- "Hmm, that's a lot better, I can barely fit my arm between your body, roller and the floor. Good job!!"

She didn't say thanks or anything, her head was too full at the time. Fortunately it was cleared by the next thing Felix said: "But we can make it better". Hannah didn't even catch her breath before she got more and more hits on that one imperfect spot. Even Gina, who once again got first out the game, didn't think that was cool, but Felix had other plans. He mercilessly hit his sister's spine one blow after the other. The hard wood already destroyed what was inside if not more, but he still went on and on

- "Hey! Maybe do me now… Please?" - Gina finally intervened - "She's already done, and I here got only one bone fractured. Fix me please, in the head if you don't mind"

- "Gina, don't forget why we're doing this" - He said - "But you're right, she seems tired" Tired was the wrong word, Hannah was destroyed from inside out. She felt some of her bones pinching into the organs. Oh how thankful she was to her sister for this self-sacrifice. But really Gina just wanted some of that action too

- "Maybe you can masturbate me a little..? I can't reach my crotch, I'll be so thankful if you could massage me before… You know… As a stimuli" She smiled at him, while his face remained the same unbothered expression

- "Fine, I guess we can spend some time on heating you up, if that helps"

He touched her, inserted a few fingers inside. Felix even wanted to fuck her for a second, but his sister doesn't exactly have the ability to move right now. "Ohh yeahhh… go onn…. I can even feel some energy come back into me… Mind helping me get up?"

Gina, leaning on Felix, got up and crashed on their bed. She once again felt all her energy leaving after this small interaction. "Start with my arms"

- "What?"

- "Arms make people less flexible. You don't know that? You need to… disable them"

- "You sure?"

- "Of course, of course, just please hit me with that thing already. Right… here…" She tried to show her shoulder blades, but couldn't. First hit came in - "Auugh..! that feels good… … … Auuughhhh!! don't stop…" One smash after another landed on one shoulder, then on the other. - "Actually… Can you destroy all of my arms please…"

- "No, you said to disable them, that's all"

- "But look!" - Gina tried to make a sad excuse for an arms movement - "I can still move them. You gotta destroy all of it"

- "Don't mess with me. We have a job. Get ready, I'll now probably break something in you"

- "My rib cage..? AAAAAAAAHannah… AAUUGHH… FFUUCKK…" - One after the other the punches flew on and on. Gina looked pretty happy and sad at the same time. Of course with so much blows, Felix missed here and there, striking his sister in the head, arms, ass and ribs. In the end almost no part of her body remained unhurt, she was practically a vegetable lying on the bed, mindless and senseless

"Ughh… well that was a training… Didn't know it was so hard… But at the end of the day, we did it, right?" - Silence ensued. Now that the older sister was out, Felix noticed his younger sister was still quietly grunting, crying, stuck in the machine.

"Hey, how are you feeling?" - He asked his youngest sister. Hannah clearly tried to answer, but it was incomprehensible. - "Hey your pussy's still out. Let me just quickly" - Felix unzipped his pants and inserted inside. - "Ohhhhh, you won't believe how much I needed this… So much for a lesson, right… Ohh…" - With a slow tempo, he clearly enjoyed every moment of it, like taking off your socks after a long day of work, he fucked his sister with a passion, like a reward for his hard job. She couldn't help but complement his every thrust with an animalish sound, that resonated through her whole body. It hurt, it will hurt even more later, right now she doesn't care. What a mess

The training worked wonders. Just a few lessons, and both Gina and Hannah were walking around like some top-tier prostitute models. Ass out, hourglass shape, when Hannah sat down somewhere she did this unnecessary flowing move with her body, and that single-handedly made her 10x more desirable. Of course they were both getting beat up pretty regularly, but you know… Girls put a lot of hard work to look as beautiful as they do