Mark Regnerus, who became infamous earlier this year when he published a now widely discredited study that supposedly found children of gay parents are worse off than those of straight parents, made the claim on the Witherspoon Institute website last week.

According to Regnerus, porn undermines the concept that in the act of sexual intercourse, people share their body and whole self permanently and exclusively and reinforces the idea that people can share their bodies but not their inmost selves, and that they can do so temporarily and not exclusively without harm, Huffingtonpost reported.