This book develops a feminist and queer linguistic account of the construction of sex, sexuality, and desire through a linguistic and discursive analysis of naturally occurring sex talk from an online community. Critical discourse analysis is used to analyse a corpus of data drawn from incidental sex talk observed in the community over the course of an 18-month period. Sub-types of sex talk that are examined include cybersex, self-disclosure, confidences, joking, games, flirting, and automated sexual commands that generate sex between participants. The book will be of use to students and researchers interested in the language of gender and sexuality, as well as feminist and queer accounts of technology and sexual communication.