Sexting is the the act of sending sexually explicit messages or images via cellphone or text message. It is much like phone sex except that rather than speak over the phone, partners communicate via text and images.
Sexting is common among teenagers and young adults, as this age group is most adept at communicating via text message.
The term combines the words "sex" and "texting" and is less commonly called sex texting.
More About Sexting
People have sent messages with sexual content for eons. Sexting is one result of the proliferation of digital mobile devices and the new forms of social interaction and communication they have enabled. The more recent ability to send images and even videos via mobile device has allowed sexting to become more explicit and more impactful.
Sexting is a common and simple way for couples to communicate when they're apart. However, there are risks to sexting especially if it involves explicit photographs or video. These may be forwarded and viewed by others beyond the intended recipient. In particular, sexting was raised as a concern among teenagers because of the risk that images will be shared and distributed, and because the distribution of explicit images of under-age children is a felony offense.