Abstract: The inadequacies of the typical study designs and the parameters employed in the performance- assessment of adolescents’ sexual-behavioural interventions in the context of HIV/AIDS, provoked this study. It examines risky-sexuality of gender-categorized adolescents; their access to intervention actors and relevance-ascription to existing interventions, classified by originating constituencies. Using a questionnaire administered by purposive-cum-random sampling techniques to final-year Senior Secondary School students, in Lagos, Nigeria, it collected information on parental backgrounds; personal sexuality attributes; exposure to agents-cum-instruments of sexual behavioural re-orientation; and personal assessment of benefitted interventions from the specified constituencies. Findings indicate that both genders which converge appreciably on some personal/parental attributes, contrast on risky- sexuality attributes, and in their relative exposure to constituency-differentiated interventions. Statistical hypothesis shows both genders contrasting on relevance-ascription to intervention constituencies. The study conclusively canvassed for improvement in male-intervention attention, including extending the current analytical-purview to include correlate-analysis of relevance-ascription, and other concerns that broaden intervention-researches’ usefulness. Keywords: Adolescent, Interventions agents, Intervention Constituencies, Risky-sexuality.