That’s more likely to be publication in itself, not presentation, but regardless porn is one of the very few areas where the courts still listen to speech arguments. However, the remaining decisions allowing (limited) regulation of porn rely on complicated, twisted reasoning—it’s clear that the justices don’t like touching this subject and feel that there are still constitutional issues here that may eventually need to be resolved via amendment. Usually this involves classifying porn in some other context, so it’s no longer “just” speech. Then the non-speech part can be regulated. Whenever they do this, they like to draw a very tight line biased towards favoring speech wherever possible, and they have consistently made it clear that they are not looking for more areas to do this kind of tightrope walking.