What is the definition of sexting?

The definition of sexting primarily focuses on the act of sending or sharing sexually suggestive content. This encompasses a variety of media, including text messages, photos, and videos that contain sexual or erotic themes intended to elicit sexual responses or engagement. The phrase conveys the idea of combining "sex" with "texting," emphasizing that it involves explicit or implicit sexual overtures.

While sending personal messages may encompass a broader range of communications, it does not specifically denote the sexual nature inherent in sexting. Similarly, sharing sexual content online is a more general concept that may include a variety of venues beyond direct messaging, and does not necessarily imply the privacy often associated with sexting. Lastly, flirting through text may include playful or suggestive banter, but it does not necessarily involve explicit sexual content, which is a key element of sexting.

Overall, the correct answer captures the essence of sexting as it focuses on the sexual suggestiveness that defines this behavior, making it distinct from other forms of communication.