Femininity Wish Gem: Girls appear

Billy watched as time slowed down for a moment, and all of his friends clothing and bodies began to change. Their shorts shortened and tops tightened, their bodies became feminine and shapely, as their hair grew and pulled up into various styles of ponytail and bun. Their shoes shrank and socks became colorful as the world began to speed up again and soon Billy was looking at his friends new selves. Every one of them had become a girl! "Come on Billy, you gonna bring the ball or just stare at us you goof!" The girl wearing his friend Luke's favorite t-shirt said. "I..." Billy started, not sure what to say or do now, and noticing the gem in his hand twinkling. Had the stone done this?