Cybersex refers to being involved in sexual activities over the internet or other electronic devices. Cybersex can include sexting, video sex, phone sex, among other things. Cyber sex can be used by anybody and especially by people in long distance relationships. Cybersex does not involve person to person contact by way of physical contact but it opens a lot of doors to explore the concept of sex in many innovative ways. However, it is important to be careful while engaging cybersex and should only be indulged in with people you trust.
Sources:
https://www.collinsdictionary.com/dictionary/english/cybersex