Feeling mischievous (and horny), Zach calls his friend Emmil over to "show him something".
As soon as the unknowing Emmil arrives, Zach wishes for him to transform into a sexy teenage girl before his very eyes.
Emmil begins to feel very strange as his hair begins to grow out and his shoulders and curves soften and become feminine. Feeling his nipples hardening and pushing outward into pointed boobs with tits behind the fabric of his sky-blue T-shirt, of which the fabric is slowly starting to shift and turn stretchy and soft, Emmil screams in a continuosly rising voice.
"WHAT THE FUCK IS HAPPENING TO ME??!!" he shouts with dread as his hips widen and his body finishes softening, twisting, and cracking into a sexy hourglass shape.
Zach watches with interest as his friend covers his crotch with his now girlish hands, his face roundening and softening, as his erect penis slowly slips into his groin and slowly transmogrifies into a girl's vagina.
Amidst Emmil's screaming and crying, Zach notices that his clothes are starting to become tighter and more revealing, too, as they transform.
Emmil reaches her hands to her upper arms and gasps "no, no, no, not the sleeves!" as her T-shirt's sleeves shrink and gradually move up and over her shoulders, beginning to expose her tanned arms. Meanwhile, the legs of her blue jeans are riding up her thighs and shortening, turning sky blue like her transforming T-shirt and shrinking.
As Emmil shrieks and sobs, the back of her shirt rapidly plunges into a square shape and the collar opens up out from the neckline, baring her round C-cup breasts from above the line of her cleavage.
Zach feels his penis stiffen in arousal as what remain of the sleeves of Emmil's shirt transform into thin, stretchy, tight straps, as her T-shirt fully morphs into a skimpy spaghetti strap tank top with no sleeves that shows off her arms, shoulders, and a lot of skin.
Emmil has fully transformed into Emily, a 16-year-old Japanese girl.
But just as she bursts into tears over her transformation, her stretchy shorts suddenly merge with her spaghetti strap tank top, the legs shrinking and disappearing altogether, as Zach watches and listens as the fabric, seemingly alive, slithers its proportions across Emily's teenaged body with a slinking, stretchy, cottony sound, transforming into flexible, water-resistent nylon-spandex and transforming her outfit completely into a sky-blue one-piece swimsuit with spaghetti straps that go up and over the shoulders.
The swimsuit's magic then erases Emily's mind, and her sobbing quickly grinds to a halt as she gets up, turns to face Zach, and stands in front of him, her hands reaching for the skimpy straps of her bathing suit, a seductive look on her face, as she tugs so hard on the straps with her thumbs that they snap loudly back against her bare shoulders, to show that she is proud to be dressed so sexily.