(TIME) — Younger students are no different than their older peers when it comes to sexting, a new study reports.

More high school students are sending and receiving sexually explicit text messages or photos, and that makes them more likely to engage in other types of sexual activity as well. Now researchers say the same trends are trickling down to younger students in middle school.

A new study published in the journal Pediatrics found that a significant number of adolescents between ages 12 and 14 sext, and that these children are more likely to kiss, have oral sex or sexual intercourse than their counterparts who did not send such explicit messages.

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