Joan looked at her watch. Several minutes had passed and none of the girls had guts to masturbate in front of their friends. Joan looked up as the clock clicked ten...
Lisa, a tall, well-proportioned, redhead, gave out a little gasp, which turned into a moan as her mouth froze into a small O. Her body began to take on a plasticy sheen and her hair fused with her head, becoming painted on. Her fingers and toes fused together. After a few seconds, she fell to the ground, having become an inflatable sex doll.
"Well, girls," said Joan, "now that you know I'm serious, I think one of you needs to get to work."