Preggo fans are turned on by pregnant bellies and may enjoy stuffing their clothes to experience the sensation of fullness and growth. Some preggo fantasies are magical, i.e. impossible speed of growth or impossible number of babies. The actual process of childbirth and actual babies are of no interest- it;s about fertility and sometimes embarrassment. For some preggo fans, the idea of undesired pregnancy or women who smoke during pregnancy adds to the forbidden thrill.