<p>Understanding how individuals first encounter sexual content, initiate sexual relationships, and engage in digitally mediated intimacy, and how these experiences are temporally organized, is essential for explaining contemporary sexual development. Drawing on sexual script theory and life-course theory and engaging critically with stage-based models of sexual development, this study examines the timing and sequencing of three milestones first exposure to pornography, sexual debut, and onset of sexting in a large convenience sample of Honduran adults (analytic sample N = 6233; full survey N = 32,542). A cross-sectional retrospective design was used, combining variable-centered multivariate regression models including sex, age cohort, and interaction terms with temporal sequence analysis. Results showed clear cohort gradients across all milestones, with earlier onset in younger cohorts, particularly for digitally mediated experiences. Sex differences were larger in older cohorts and narrowed in younger ones, indicating a partial reconfiguration of historically gendered sexual norms. No single trajectory dominated: 42.3% of participants reported two or more milestones occurring at the same age, and among strictly orderable trajectories, pornography exposure most frequently preceded sexual debut and sexting. These findings indicate that sexual development is not linear but composed of diverse and overlapping pathways, challenging stage-based developmental models and providing temporal evidence consistent with sexual script processes by demonstrating how cultural, relational, and digital scripts intersect across generations in a non-Western context.</p>