Right at the very bottom, you see a line of green-colored cans labeled "Apple TG Soda". Underneath the button, there's a description of the effects of the beverage, as you notice when you crouch down to get to the button. It reads: "Relive the years of your youth, with a gender-flipped twist!" Seems like this one will not only change you into a boy, but it'll also make you younger. What that means for your future... well, you'll just have to try it and find out. You should be able to change yourself back to normal by drinking a different brand, anyway.
You insert a quarter into the vending machine, which beeps out pink and blue lights around the glass. You press the button in front of the Apple TG Soda, and the soda can falls safely. You pick up the soda, open it, and take a sip. Wow, the reviews that you read earlier aren’t kidding! This soda doesn’t taste bad at all. It’s not fizzy, though, which is understandable, since it's supposed to be a reminder of people's youth. Speaking of which, it makes you feel very youthful, and you think about the times that you drank juice, specifically apple juice. It was always refreshing to drink, especially when you slurped it all up through a straw.
Desiring to see the changes as they happen, you undress, leaving you standing completely naked in front of a mirror behind the vending machine. As you fix your gaze on your reflection, the magic of the soda begins to take effect, and your feminine body begins to transform.
Your chest begins to feel all tingly, and you feel your breasts start to shrink down, flattening out against your chest to become small, but visible, pectoral muscles. Your nipples follow suit, getting smaller and flattening out, losing their sensitivity, while moving to the edges of your pectorals. Your chest then changes shape, becoming that of a prepubescent boy. Your shoulders then crunch inwards, leaving you with a narrower frame, and your hips narrow as your waist thickens slightly, getting rid of your feminine curves. Your ass flattens and tightens, firming up and shrinking slightly as it lifts a little bit higher, leaving you with a boyish bubble butt. Your back loses its curves, straightening out.
You then begin to slowly shrink as your spine and limbs reduce in length, your body becoming more compact. You feel yourself growing smaller, younger, and shorter still, until you reach the height of a ten-year-old boy, just under five feet. Your muscles shrink a little bit, leaving you with just enough strength to go about your daily life. Your arms and legs become somewhat gangly, your hands and feet shrinking down to the size of a young boy. Your fingers and toes follow suit, becoming shorter and thinner.
Your hair begins to shorten and thin out, receding into your scalp until it becomes a short, neat pixie cut. Your face begins to morph, your facial features shrinking and growing soft and cute, becoming adorable and cherubic. Your chin draws back a bit, shifting into a more pointy shape as your jawline softens, and your eyes become somewhat ovular, yet bigger, wider, more innocent-looking, as your eyelashes shrink. Your lips thin out, becoming less pouty as your eyebrows thicken a bit. Your forehead widens slightly, and your nose protrudes a little, becoming more upturned. Your voice becomes somewhat deeper, yet not too masculine and instead rather boyish, as you don't gain an Adam's apple like with the other brands. You feel your neck as it slims down considerably, testing out your new boyish voice as well.
As you gaze down between your legs to see the obvious final changes, you see your clitoris grow longer and thicker, changing into a penis as it develops a rather sensitive tip. Inside you, your ovaries transform into testes, popping out of your groin to hang snug between your legs inside your labia, which sags to become your scrotum, the skin wrinkling around it. Your womb morphs into a prostate gland, your uterus and Fallopian tubes disappearing into thin air, no longer needed. Your cervix seals shut inside you, and your vagina closes up, sealing off your femininity for now. To complete the changes, your pubic hair virtually falls off your body, leaving you as a proud young boy.
You ball your small hands up into fists and rest them on your hips, a proud smirk on your face as you gaze into the mirror, looking at your naked body in amazement. Good purchase? You'll have to see. Maybe you'll try living life as a ten-year-old boy first, seeing as you've already changed. Or maybe try another brand? The choice is yours.