Sentence:  They discuss the implications of online dating; online pornography; virtual sex in the fantasy worlds of Second Life and The Sims; and <WSD>technosexual</WSD> intercourse, an activity traditionally associated with phone sex but now embracing all manner of cyber-based connections such as "sexting" (sexually explicit text messaging) and erotic instant messaging. 
Meaning of the word marked with <WSD> tags:  Expressing, or pertaining to the expression of, sexuality through technology or technological media.