Objectives: To test the ACE-Plus curriculum, a two-session program that teaches males in foster care and/or preventive services about correct and consistent condom use, and engagement with female partners to obtain and use contraception. Methods: Nine foster care agencies in New York City randomly assigned 223 males aged 16-20 to the ACE-Plus intervention or a benign program. Youth completed surveys at baseline, 3-month follow-up, and 9-month follow-up. Regression analyses assessed the effects of program participation on condom use, use of hormonal birth control method, use of birth control by female sex partner(s), obtaining birth control with a sex partner(s), and communication about birth control with a sex partner(s). Results: At 3-month follow-up, treatment youth were significantly more likely than control youth to report communicating with their sexual partner(s) about birth control (p = 0.0062). While not statistically significant, treatment youth were more likely to report obtaining birth control with a sex partner(s) than control youth at 3-month follow-up. Impact estimates for the remaining behavioral outcomes favored the control group, though not significantly. Implementation data suggest the program was delivered with fidelity. Conclusion: Based on these mixed results, perhaps more developmental research into this short-duration intervention for this high-needs population is necessary.