This is a muscle growth series focusing on characters from the entire universe of Sonic the Hedgehog, including the less known ones. I suggested including him, with  backyardgameboy's approval

Description:
Amadeus Prower and a small group of five soldiers were standing by the city walls of New Mobotropolis, when they noticed something falling from the sky. As that thing landed into Castle Acorn, Amadeus immediately led his men there to assess the situation, not knowing what was about to happen. They arrived at that castle but Sonic the Hedgehog and Sally Acorn ran out to alert them of what the latter two saw.

Amadeus was skeptical at first, but Sonic and Sally fIed before he could ask, just as a juggernaut barged and came before the older fox, wearing nothing but red boots and torn royal blue skirt. Amadeus quickly recognized that large being to be Dylan the Porcupine, one of the members of Council of Acorn, but Dylan proved to be an aggressive brute when he started attacking the soldiers present. The muscular porcupine effortlessly managed to knock out them all but one, one who was Amadeus, having been thrown into a big bush.

Amadeus recovered from the fight but was horrified to witness that it wasn't just Dylan, but also the whole Council of Acorn, including his wife Rosemary among them. While the council scattered around the city looking for Sonic and Sally, Amadeus checked upon each downed soldier before running into the Council Hall inside Castle Acorn, where he found Ixis Naugus lying on the floor but not dead. The weakened Naugus confirmed everything Sonic said earlier. It was the cyan-glowing, strangely-carved stone that crashed into the Council Hall and corrupted the entire council, who immediately and brutally turned on Naugus.

Ixis Naugus, on his last breath, begged Amadeus to stop the corrupted council before he slipped into unconsciousness. While the brown fox felt conflicted on what to do, he was then confronted by Rosemary, his own wife. Rosemary Prower began explaining what exactly to her and the whole council, then bragging on what she had become, and pledging to turn everyone in this continent into body builder warriors, as big, muscular and powerful as her. However, it was the moment that Amadeus realized it was too late to act, as the cyan hexes appeared in the sky and one zap flew through the broken castle window into the defenseless brown fox. It turned out all she did was to stall her own husband with a very long speech to let the mass convertion occur undisturbed, not just because Amadeus wouldn't dare to hurt his own family even in serious situations, but also because he was the only authority figure available for dispatch. The other figures were King Elias Acorn (who stepped down and went on a secret mission), his father Maximillian (who was too old to make an urgent response), and of course Ixis Naugus.

Amadeus, now a big warrior, had embraced his fate as he joined her on a little honeymoon around the castle before coming out to see many (if not all) citizen-warriors praising and bowing before Nicole the Holo-Lynx, declared as the queen. With no active Acorn around, the Prower couple bowed before Nicole, who gave them her blessing to find and corrupt their only son, Miles.

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)