President Ezra Taft Benson counsels the young men to not see R-rated movies or vulgar videos.
President Ezra Taft Benson, "To the "Youth of the Noble Birthright"," General Conference Report, April 1986, accessed September 28, 2022
We counsel you, young men, not to pollute your minds with such degrading matter, for the mind through which this filth passes is never the same afterwards. Don’t see R-rated movies or vulgar videos or participate in any entertainment that is immoral, suggestive, or pornographic. Don’t listen to music that is degrading.