You suddenly feel a pain in your foot. Looking down, you see a skeletal hand (or claw) on the ground. The index finger has pierced your trainer. The strange thing is, it feels as though liquid is flowing from the finger into your foot, which begins to feel strange. You take a step forward, and suddenly your trainers seem to explode. You look down, and gasp. Your feet have become huge and flat, with green scaly skin and sharp black claws jutting out from the three toes. The sudden addition of weight overbalances you, and you stumble. As your head jerks forward, you see a small house. You dash towards it, hoping to find out what is happening. But as you start, your legs fatten up with oversized muscle, the change snaking up your leg, popping each seam of your jeans with a crack, and soon the rags fall to the ground. The added kilos slow down your running, and you move slowly. Just before you reach the door, your arms suddenly swell with powerful strength, bursting open the sleeves allowing the pounds of flesh you have gained to force their way out. You skid to a halt in front of the door, your new limbs unbalancing you again. As you skid, your hands become as huge as trashcan lids, each finger feeling heavy and clumsy with the same claws as your feet. The door is closed, and you move your fists up to the door to open it. Your arms move slowly because of the weight, but eventually you reach it and gasp as you easily pull the handle straight off. Your face suddenly pops forward into a lizard-like snout, with yellow eyes. Suddenly, your chest muscles begin to expand. Your abs snap out, each one huge like soda cans, and your pecs bloat out slowly. You dash to the doorway as your back hunches up and swells with your hulking reptilian muscle. But as you get into the doorframe, your muscle fills it up, sticking you clean in the doorway. With a creak, the sorry remainder of your jeans allows a huge tail to burst forth, smacking into the grass outside. You pause and examine yourself. You are a hulking, swollen reptilian creature, with over 5000 pounds of thick muscle. You have to crane your neck forward to see over your chest muscles, your head being almost comically small in relation to the slow, brutish musclepile that is your body. You only have a tight, torn, pants-shaped leftover of your jeans to cover your crotch, (though you read somewhere most lizards have a sheath for their genitalia, you don't want to pull down your makeshift clothes to check.) and you can only move incredibly slowly. You try to use your newfound strength to break the frame, but your arms are pinned to your side by your piano-sized chest, and your chunky legs are crushed against each other. You can only see into the house, and your muscular back and tail is still outside.
So what now?