You curse and can only watch until your transformation stops. You look almost completely like a girl now, save the broad shoulders and still somewhat muscular arms.
Your legs looks as girly as they come, you are wearing black high heels, your pants have receded to short hot pants, your shirt has become a girly top that exposes your flat stomach, your now thinner waist and whide hips. Your face looks so androgynous, one could easily mistake you for a girl at first glance and your hair only completes the picture. Shaggy, with bangs covereing your forehead and down your ears, framing your face in a feminine way and growing beyond necklength in the back.
You look at yourself and you get slightly aroused, until you realize you have an erection. As a very visible bulge in the front of your pants, it's almost impossible to not recognize it. You blush in embarassement and leave the rest room slightly wobbly on your new high heels.