Just Sign No: More Evidence Virginity Pledges Don’t Work
…virginity pledges worked for those who had high levels of religious commitment, but pledgers with low religious commitment (regardless of the amount of religious participation) had more intercourse and oral sex partners than even non-pledgers. Virginity pledges, therefore, increased the likelihood of risky sexual behaviors among those with low religious commitment. In particular, pledgers with low religious commitment were more likely to have oral sex perhaps in an effort to maintain their so-called virginity.
Image source and full article: http://rhrealitycheck.org/article/2014/08/21/just-sign-evidence-virginity-pledges-dont-work/