>>9711081Reynolds, M.A., Herbenick, D. L., & Bancroft, J. (2003). The nature of childhood sexual experiences: Two studies 50 years apart. In J. Bancroft (Ed.), Sexual Development in Childhood (pp. 134-155). Indiana: Indiana University Press.
In a 1999 study of undergraduate students, 5.2% of females and 12.8% of males reported having engaged in sex play with their peers involving genital contact before elementary school, and that 1.3% of girls and 4.0% of boys had engaged in sex play involving anal/genital insertion (with objects or fingers) or oral-genital intercourse before elementary school. By the end of elementary school, the numbers increased to 29.2% for females and 32.9% for males for genital contact and 12.3 for girls and 10.1% for boys for insertion or oral sex. Very little pressure and almost no coercion were reported.
