This is a muscle growth series focusing on characters from the entire universe of Sonic the Hedgehog, including the less known ones. I picked these girls as my next entry, as they and the rest of the Secret Freedom Fighters became relevant later on with Ixis Naugus trying to strengthen his rule and buy loyalty from New Mobotropolis citizens.

Description:
Unbeknownst to everyone in New Mobotropolis except Nicole, there was a secret group founded to remove Ixis Naugus from his position over the city without facing direct opposition from its citizens. The so-called 'Secret Freedom Fighters' consisted of Elias Acorn (the previous ruler of Kingdom of Acorn prior to Ixis Naugus), Silver the Hedgehog, Leeta and Lyco Wolf, Shard the Metal Sonic, and Larry Lynx, all under directions of its founder Harvey Who. One night, they had a successful mission, i.e. stealing new files from Ixis Naugus, all in relation to numerous graffiti in shape of some strangely cutesy face across the city. While the team was uncertain on what to consider these files, let them be files of complaint, conspiracy notes, nefarious plans, or at the tamest, prank spots, Silver sensed some distress from a far distant future and went off, but not without seeking Harvey's permission, in which he approved.

An hour later, Harvey caught a suspicious eye on Ixis Naugus going out of the city walls, and ordered Shard and Larry to spy on him. Elias was then to keep guard onto the Castle of Acorn, and the wolf twins were to remain inside the Secret HQ in case of trepassers, while Harvey had to deal with guards at his door, who were actually their secret allies, wishing to alarm the owl about what they had witnessed. Meanwhile, Silver and Drago Wolf appeared in the city, but as way too different from their original selves, all nothing but big, muscular and evil. Elias was able to notice the two getting into the castle and was horrified to recognize that white hedgehog. Although wanting to get into the situation right ahead, Elias felt there could a serious risk of going there alone, and so retreated into the Secret HQ to alert Harvey and bring the wolf twins with him.

However, Harvey had already learned from those guards that the strangely-carved stone glowing cyan looked identical to that of numberous graffiti, and that there were recent rumors that it could turn unfortunate victims into evil, hulking warriors, hellbent on aggressive ruling and destruction. Although skeptical, the elderly owl was able to make a connection, that the cyan-glowing stone had something to do with Silver being called back into the future, given both the hedgehog's time-related abilities and additional writings on those graffiti, mostly saying "The future is nigh!" Still, he had to confirm even his own assumptions. On the other hand, Ixis Naugus outside the city quickly noticed the bright light shooting straight into the Castle of Acorn. By additionally bringing up his remaining student's inability to use magic that would fall from the sky, clearly he did not like what his enemies were up to and so ran back into the castle to discuss the urgent matter with the Council of Acorn. And because of that, Shard and Larry's stakeout was aborted and they were ordered to return back into the Secret HQ for an emergency meeting.

Things went down as already mentioned in entries of Silver and Rosemary Prower, but as Nicole had become infected with the cyan stone's power, the holo-lynx went berserk and emitting an electrical storm that would turn almost everyone in the city into hulking beasts. Harvey, horrified at what was now witnessing, quickly retreated the Secret HQ and set it into isolation mode, thereby preventing Nicole's electrical attacks from reaching there, but he unknowingly failed to bring his own Freedom Fighters into the picture, they were all outside. To make matters worse, Harvey was forced to remain in the isolated HQ for few hours, while the Secret Freedom Fighters had to fend for themselves, not only from the electrical storm, but also from the newly transformed warriors. Sometime later, the Secret Freedom Fighters (minus Silver) managed to meet up together, hiding in the closed-down cafe. As they were plotting to leave the city for their own safety, given everyone else here was already made loyal to the digitally and physically corrupted Nicole, Larry made an accidental slip up with an electronic ice shredder that caught attention of few hulking warriors passing by, including Fiona Fox who went on her way to inform Nicole about Sonic the Hedgehog and Sally Acorn having escaped the city. Receiving a hostile glare from those warriors, the Secret Freedom Fighters quickly left the cafe and was given the chase. Nicole eventually took notice of this as well and started zapping bolts at them so as to convert them, but the team split up to avoid those zaps. Leeta and Lyco holed up in the bushes, Elias and Larry snuck into a skyscraper unnoticed, and Shard became a literal distraction to buy the rest some time to escape.

Leeta and Lyco ended up in the worst situation as many warrior-citizens had a heighthened sense of smell and hearing, rendering all bushes in the city a moot. It was quite natural of Leeta and Lyco to be resorted into wielding a dagger and a spear respectively, the very weapons they brought from their homeland. Yet surprisingly, despite the warriors' superstrength, the wolf twins managed to hold off while running through the bushes, but it wouldn't last as long as an hour, as Nicole was busy zapping at the flying Shard encircling around tall buildings to his advantage), and then she witnessed her warriors' commotion with the bushes. Having none of that, Nicole unleashed a lightning ball at Shard, creating a large explosion at a complex of few skyscrapers, both killing off the original Metal Sonic and exposing Elias and Larry to the literal public, allowing Nicole to deal with the wolf girls herself. The holo-lynx zapped at the bushes to burn them down and to discourage the wolf twins from using them again, this also made them more vulnerable, as many warrior-citizens overwhelmed them, allowing Nicole to turn them by herself.

Both Leeta and Lyco had transformed into a pair of yet another evil, muscular warriors, but with a twist of noticeable attraction and affection towards each other, something beyond being genuine sisters. After a short series of posing into each other, the girls bowed before their new feline master in the city coliseum and shamelessly confessed everything about the Secret Freedom Fighters, as well as their original purpose. In the end, Nicole was deeply pleased and humored with their story, as Ixis Naugus had also been present at the time, but forcibly knelt down as a chair for Rosemary Prower, sitting next to her husband standing still but sternly. It was obvious to say that Naugus felt humiliated in this position, but the wolves' story did not make him feel any better. Meanwhile, Elias and Larry managed to evade the warriors and reached the coliseum, and were saddened and dismayed to see their canine comrades' new state.

Mobian Muscle Growth:
Speedy (Alt, NSFW) || Duck "Bill" Platypus (Alt, NSFW) || Jolt the Roadrunner (Alt, NSFW) || Razor the Shark (Alt, NSFW) || Eclipse the Darkling (NSFW) || Barby Koala (NSFW) || Walt Wallaby (Alt, NSFW) || Akhlut the Orca (Alt, NSFW) || Babylon Rogues (NSFW) || Crocbot (NSFW) || Silver the Hedgehog (NSFW) || Nicole the Holo-Lynx (Alt, NSFW) || Drago Wolf (NSFW) +Alt (NSFW) || Echo the Dolphin (NSFW) || Sealia Seal (NSFW) || Augustus the Polar Bear (NSFW) || Erma Ermine (NSFW) || Conquering Storm (Alt, NSFW) || Coral the Betta (NSFW) || Sleuth "Doggy" Dawg (NSFW) || Flip Penguin (NSFW) || Guntiver the Artic wolf (Alt. NSFW) || Queen Angelica the Anglerfish (NSFW) || Shift E. Wolf (Alt, NSFW) || Tex the Lizard (NSFW) || Fiona Fox (NSFW) + Classic (NSFW) + Payback (NSFW) || Amadeus Prower (NSFW) || Rosemary Prower (NSFW) || Leeta and Lyco Wolf (Classic, NSFW) || Retro and Beta (NSFW)