[citation needed] Along with Candida Royalle, Annie Sprinkle, Maria Beatty, and others, she is one of the pioneers in producing pornography for women.
[citation needed][2] Common themes in her erotic films include safe sex, men seen as sexual objects, female fantasies, and male bisexuality.
Joy has directed and produced over 70 documentaries for international TV stations such as Channel 4, National Geographic, and WDR.
In 2003, Joy launched Strawberry Seductress, an intimate and creative erotic photo service for women and couples and film production company.
Joy started producing and directing erotic films in 2004 with the aim to show a more accurate reflection of female sexuality than mainstream porn filmmakers.
Of her first erotic film, Sexual Sushi, one reviewer wrote, “Petra has achieved her aim of creating an antidote to ‘porn junk food’”.
[7] In addition to cash prizes, the winning films were included on the first volume of Joy's compilation of erotic female filmmakers Her Porn.