The term "anal-ts" can be broken down into two parts: "anal" and "ts." In the context of adult content, "anal" refers to the act of engaging in anal sex or related activities. The term "ts" is a shortened form of "tss," which stands for "threesome" in some languages, particularly Spanish.
Therefore, the tag "anal-ts" describes a scene involving a threesome that includes at least one act of anal sex or similar activities related to the anus. The term may also refer to scenarios where both male and female participants are involved in the anal play during the threesome. Remember that this is for adult audiences who understand what these terms mean within the context of pornography, and as always, responsible viewing habits should be practiced.