it was just another adventure with your brother Sonic and his friends, chasing down Doctor Robotnic (or as your brother liked to call him "Dr Eggman) and freeing all the critters that the mad doctor captured, that is until Sonic found a cyan colored chaos emerald, and of course Sonic picked it up without hesitation like he did with all the previous chaos emeralds, that was until he started to melt... Everyone started to panic, even causing Amy to faint, eventually you and Sonic's friends manage to carry Sonic back to their home base, but unfortunately it was already too late, Sonic has turned into a cyan slime with a watery like structure, Sonic friends figure that Sonic will be able to get back to his normal form soon-ish, since he's been transformed many times into stranger things, like a werehog for example, and so they continue their journey, leaving you behind to keep a eye on Sonic

Now you're left all alone in the base, keeping an eye on your transformed older brother who'se being kept inside a cell with glass walls

Meanwhile Sonic is staring at you through the glass, he has this strange hunger, everytime he stares at you while his stomach starts to bubble like if he was staring at a delicious chili dog... Perhaps you do taste like a chili dog, as Sonic's mind shifts into what you might taste like he starts to drool, now being set on devouring you