Go home to your room and test it out.

Bidding the man goodbye, you exit the store. On your walk home, you read the instructions on the bottle:

"A pinch of powder into a glass of water makes every sip a wish."

If that was the case, you thought, then you have a LOT of wishes to work with! After 20 minutes in the intense summer heat, you finally make it home. You enter the kitchen and pour a large glass of water for yourself, then head into your room. Thankfully you were lucky enough to live alone. You unscrew the lid and are overcome with that tingly feeling once more. Shuddering with excitement, you take a pinch of the powder and drizzle it into the glass. The water immediately takes on an ethereal, otherworldly cyan glow.

Your hands tremble as you pick up the drink. Taking a sip, you wonder what you should even wish for! Then it hits you. You think about your best friend, Josh. 21 years old and 275 pounds, you've always been jealous of his weight. You were the same age, and yet you weighed 100 pounds lighter. Resolute in your first wish, you say aloud, "I wish I was 300 pounds!"

All of a sudden, the tingly feeling returns, coursing through your whole body, but mainly in your stomach. The glass practically slips from your hand as you place it on the table then collapse onto your bed. Your hands start to massage your belly and your eyes widen in disbelief as you feel it start to fatten up under your fingers! The solid flat stomach grows softer and squishier, pound after pound being piled on. The rest of your body isn't spared either. You feel the sleeves of your shirt get tighter on your arms as they start to bloat with flab. It grows tight on your chest as your pecs develop into soft, sagging moobs, and starts to rise up on your belly as it continues to take the brunt of the gain.

Then, you feel your shorts tightening around your thickening thighs and quickly unbutton them, tugging them off alongside your underwear, leaving you in only your stretching shirt. The process reminded you that you now had a quite sizeable fupa now, encasing your hard dick. You didn't realize when you got hard, but you felt more excited than you ever have been!

After 5 short minutes, the growth ends. You stand there in your room, in a shirt that doesn't even reach your belly button, and a belly that sagged down heavily. Just like you wished, 125 pounds of fat were added to your body making a total of 300, and none of them were muscle, giving you the perfect soft sagging fat bod! You moan and sit down on your bed, feeling your belly press down on your cock erotically and moan.