I was always told by pastors, teachers, evangelist, etc, that God created the idea of sex and He wants us to have a really great sex life but to remain abstinent until marriage. (religion.blogs.cnn.com)
(This is not the only mention of sex in this documentary... Lou Smith, a former NFL cornerback, later emphasizes how great his sex life has been since he's been on a plant - based diet). (si.com)