Sitting in a maxi glass box like cage, is where Jackson Heart sat. It in this case, a different Jackson Heart. This Jackson Heart came from the same universe as Max Copperhead, they even went to the same school.
Another thing that connects the two, is that Jackson is three feet tall, and he used to be best friends with Max. Until he found out that Max is homosexual and told the whole school, when they were sophomores.

Now Jackson is scared out of his mind, when ever he see's Alexander, due to the experiments he has gone through. Now, Jackson is a cat boy as the experiments has caused him to grow cat ears on the top of his head that are the same color as his blonde locks with a cat tail at his tailbone to match, as it curls around his muscler waist.

Alexander pulls out his cell phone and types down the code to activate the next stage for poor little Jackson. As if on que, Jackson felt a slight tingling in his chest, belly and butt. Jackson felt his breathing get short, as he looks down at his muscler torso in uneasiness, as he regrets always wearing tight form fitting clothes that hugs every inch of his muscler body.
Then it happened all at once, as Jackson's chest, belly and butt started to slowly but surely grow before his eyes.

To his complete shock and horror, Jackson can only helplessly watch his muscler chest, flat stomach and tight butt, are inflating with some kind of liquid. Alexander has a big smile on his face as he watches the tiny human known as Jackson Heart grab his expanding body and try in vain to keep them from growing bigger as his body fat just pushed his hands further apart and between his fingers.
Not long after Jackson's body started to inflate, and his clothes have lost the fight and began to slowly at first; literally explode off his growing body.

His shirt was the first to go, as his chest and belly grew and grew and grew till his shirt split right down the middle. His chest became a growing pair of double EE-Cup boobs full of milk as they steadily keep growing bigger. Then his belly had finally split his shirt open and surged outward like rising dough as love handles formed in his hips as he grew outwards, lifting his shirt and arms upwards. Then his pants button gave way as well as his pants.
With his butt, it grew to bubble butt territory, then to basketball territory and kept growing faster as its no longer confined by his tight pants and even his orange underwear didn't last as Jackson's thighs and waist grew with his butt and despite his strong muscler legs from years of baseball, couldn't handle the sudden and increasing weight that is being piled up onto his body. And so Jackson collapsed to the floor as his legs couldn't handle his increasingly expanding body.

An hour had passed, before Jackson's body had finished filling up with liquid. Jackson's butt has grown to the size of two adult size hippos, his belly is resting on the floor three feet past his feet and is bigger than a ice cream truck with his chest is the size of two over filled yoga balls. The rest of his body has grown plump all over, with his neck forming into his chin becoming one with three chins full of blubber.

Alexander pressed a button on his phone and the walls around Jackson's immobilized body came undone releasing him. Jackson can only watch in terror as Alexander approaches him with a smirk on his face. Jackson's ears were flat against his head as he can only whimper and moan as Alexander picks him up and brings him to another room were on the table is a cat onesie that is the same color as Jackson's hair. With giving little care for his feelings, Alexander rips off the remaining clothes of Jackson's expanded body, as he enjoys the giggling mess that's Jackson's body: even when his new man breasts started to slowly leak milk. Alexander ignored Jackson, as he forced him to wear the cat onesie with actual paws on the hands and feet of the onesie.

After Jackson was in the cat onesie, Alexander pulled out his phone again and a press of a call button, Alexander puts his phone to his ear and spokes to the person with a wide smile, "Hey. Come to my house tomorrow at 7 pm, I have your birthday present for you."