S.D. Codified Laws § 26-10-34

It is an affirmative defense to the offense of juvenile sexting that the minor has not solicited the visual depiction, that the minor does not subsequently distribute, present, transmit, post, print, disseminate, or exchange the visual depiction, and that the minor deletes or destroys the visual depiction within a reasonable time after receipt. It is an affirmative defense to the offense of juvenile sexting that the visual depiction is of a single minor, created by that minor, who does not subsequently distribute, present, transmit, post, print, disseminate, or exchange the visual depiction.