Sexual harassment is a common, yet understudied form of peer victimization experienced by adolescents during a critical period in the development of sexual identity. Adverse sexual experiences early in life (e.g., child sexual abuse) can increase risk of future sexual assault victimization; however, it is unclear as to whether sexual harassment victimization is also a risk factor for sexual assault. We examined the prospective association between peer sexual harassment and experiencing sexual victimization in the following year among a community sample of 13–15-year-old adolescents (N = 800, 57% female) from the northeastern USA. We also examined whether risky alcohol use and delinquency mediated the association between sexual harassment and sexual assault victimization, as well as whether the paths differed by gender. Results indicated that sexual harassment victimization prospectively predicted later sexual victimization for both girls and boys. Using a parallel mediation path model, we determined that for girls, sexual harassment victimization predicted both risky alcohol use and delinquency, but only risky alcohol use was predictive of sexual victimization. For boys, sexual harassment victimization predicted delinquency but not risky alcohol use. Risky alcohol use was not associated with sexual victimization for boys. Findings indicate that sexual harassment victimization increases risk of later sexual victimization in adolescence, but the pathways differ by gender.

性骚扰是青少年在性认同发展的关键时期经历的一种常见但尚未得到充分研究的同伴受害形式。生命早期的不良性经历（例如儿童性虐待）可能会增加未来遭受性侵犯的风险；然而，尚不清楚性骚扰受害是否也是性侵犯的一个危险因素。我们在来自美国东北部的 13-15 岁青少年社区样本（N  = 800，57% 女性）中研究了同伴性骚扰与次年遭受性受害之间的前瞻性关联。我们还研究了危险饮酒和犯罪是否介导了性骚扰和性侵犯受害之间的关联，以及这些路径是否因性别而异。结果表明，性骚扰受害可以前瞻性地预测女孩和男孩以后的性受害。使用并行中介路径模型，我们确定对于女孩来说，性骚扰受害可以预测危险饮酒和犯罪，但只有危险饮酒才能预测性受害。对于男孩来说，性骚扰受害会导致犯罪，但不会导致危险的饮酒。危险饮酒与男孩的性受害无关。研究结果表明，性骚扰受害会增加青春期以后遭受性受害的风险，但途径因性别而异。