According to a study on adolescent sexuality, sexual initiation at an earlier age during adolescence continued to be associated with an increase in the likelihood of engaging in delinquent behavior in early adulthood.

Source: "Adolescent Sexual Debut and Later Delinquency"
Armour, Stacy, Haynie, Dana L., Journal of Youth and Adolescence Vol. 36, Number . February, 2007. Page(s) 141-152.

(HT: FamilyFacts.org)