Haggstrom-Nordin, E.
Hanson, U., and Tyden, T.
International Journal of STD & AIDS Vol. 16, Number 2. February, 2005. Page(s) 102-107.

Young men who are high consumers of pornography are more likely to engage in anal sex, as well as have sexual relations with a friend (i.e. someone with whom they are not in a loving romantic relationship).

This study attests to the slippery slope of pornography and the consistent degrading effect it has on relationships.