Sexually explicit materials are effective tools in sex education. Back in the seventies Rev. Dr. Ted McIlvenna and Laird Sutton produced over 150 sexual "Pattern Films".
The films portrayed "sexual patterns", that is the similar and unique ways in which different people have sex.
The films showed real people; gay, straight, and lesbian, individuals, couples, and groups just doing their own thing. They were use in sexual attitude reassessment and restructuring.