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Here's a sequence featuring Boothill from Honkai Star Rail. The idea was suggested by TPoN.

"Boothill from Honkai Star Rail. He’s a really hot and fun new guy, but I don’t have a super in depth idea for him in particular. I mainly thought about him making a scientist friend who wants to help his body stay all in tip top shape. However, he decides to use nano machines for that, but doesn’t exactly put a good idea of ‘tip top shape’ in their head, and they instead use that to make Boothill grow bigger and bigger! To the point he doesn’t even fit on his home planet anymore! At least he can replace the train that the others use to travel from planet to planet with how huge he gets~!"

Boothill was a tough customer to convince, but the moment a scientist promised that this experiment would raise his power and effectiveness by a 1000%, he couldn't resist...he accepted the offer!

Boothil stood on top of a stand, surrounded by a couple of pillars with cords hanging from them. As the scientist activated his computer, the cords activated and plugged into Boothill's body, not doing harming Boothill in the slightest. Boothill didn't stagger in the slightest, as he was used to be connected into machinery.

And so the nanomachines started getting into his body through the cords...Boothill not feeling anything at first...until a sensation of heat was felt throughout his body. He could feel the energy coursing through his veins, already feeling like he could take on a whole army of monsters!...Until, something went off...as his clothes were feeling tighter than usual. He looked down, and he could see how his metallic pecs were literally expanding right before his eyes, pushing further and further into the fabric of his top.

The scientist never mentioned anything about body shifting was involved...but was too late, the nanomachines kept on flowing into his body, and his body kept on expanding further! His robotic muscles pulsing bigger and bigger as the metallic material groaned and shifted.

The nano machines stopped flowing...but Boothill didn't stop growing, if anything, once the proccess was over, Boothill's growth seemed to accelerate more and more! His bulky body seemed to have gathered the same amount of a car, breaking the pillars surrounding him! The crashing sound finaly calling the attention of the scientist...who cowered in fear as he was also not aware that this was gonna happen!

Boothill's head bumped into the ceiling, making him fall on his knees...and his body kept on filling up more and more of the room, his raising shoulders notably pushing into the ceiling, making it blatant that he was about to burst out of the building...The little scientist ran away somewhere nowhere to be seen again...

BOOM

Boothill's massive body finally was released from teh confines of the laboratory...and kept on expanding further! Calling him a truck was an understatement...he was gathering the same mass as a whole truck parking lot!...ANd increasing even further! Destroying the laboratory in the proccess.

The metal cowboy kept on expanding further...and higher. Slowly but surely covering more area, his shadow being casted over the city, which war being towered over by the cowboy higher and higher, until it was fully covered by his shade...

Trees, cities, mountains...all of them were quickly dwarved by the growing young man, as he could visibly see that he was going through beyond the atmosphere! Afraid of causing any damage, he used his powerful legs to jump out into space. And, as if his body responded to the available space around him, hit growth EXPLODED in size, and in a matter of seconds, the whole home planet was became smaller than ONE of Boothill's pecs...

The galactic cowboy was speechless at the results...tho he had to admit that having that much mass and power on his side was nice, nobody would mess with the cheriff! Besides, maybe he could help people out travel from world to world faster and safely now too~

Hope you like it!

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Comments

ds

Dont know a lot a about Star rail but love seeing guys outgrowing the earth so casually 😂

HC

I can't remember if you've ever done planetary size growth before until now, feels a bit new to me! Speaking of which, trying something new with the first pic? I really like the way you drew the lines for it, hope you use that a bit more in the future!

rottenheart6

Oooh, yeh. Its mostly to follow the newer rules of the site. To show the age of the character, and to show that it all is just a theater play, to show that no one was hurt in the proccess. And thank you! But I just did the sketch of the stage. A friend helped me with the rest! But they told me to not mention or tag them.