An earlier post of mine titled “And Boys Too…” looked at the prevalence of teen prostitution among boys in different countries. I noted that to some extent there are more teen aged male prostitutes than teen aged female prostitutes based on a handful of studies.
Here is another US study using a nationally representative sample of adolescents and young adults which found that more males reported exchanging sex than females.
Ulloa, E.; Salazar, M.; & Monjaras, L. (2016). Prevalence and Correlates of Sex Exchange Among a Nationally Representative Sample of Adolescents and Young Adults. Journal of Child Sexual Abuse, 25(5), 524-537.
It used data from The National Longitudinal Study of Adolescent to Adult Health.