as soon as you changed the description your body started to tingle. you could feel your body hair shrinking into your skin, your very skin start to tighten and shrink your limbs, your muscles being reduced to that of a girl's, your reproductive organs to shrivel up into you and change, your hips and butt to grow giving your backside a nice "cushion", your nipples elongating and your breasts rising to C-cups, and finally your face and voice adapting to your female form.
You breathed in heavily and rested your head on your desk a little and saw your hand. You saw the slender shape and then looked to your chest and saw your nipples poking through the fabric of the shirt you had while you were a guy. You stood up and looked in a mirror, your face was cute and while your hair didn't grow to your now slender waist the dark brown hair was shinier and reached to your shoulders. Your clothes definitely no longer fit you, and after you stop leaning against a wall to look into a face mirror your pants fell to your ankles leaving only underwear on. Those tidy whites were pulled down so you could check and see that your dick no longer was there. Fingering yourself a little you shriek a little bit at the unexpected sensation and you cover your mouth as you heard your cute little voice. You put your clothes back on as well as you could and think about what you want to do.