Objective. Motivation is not sufficient to actually use condoms, as self-regulatory processes are needed to translate motivation into action. Buying condoms and carrying them constitute preparatory behaviors that may serve as proximal predictors of action. Whether or not such preparatory behaviors operate as mediators between intention and action within a broader behavior change framework has been examined. Method. A sample of 150 heterosexual men between ages 18 and 25 years responded at three points in time to a computer-based survey that assessed behavior as well as social-cognitive antecedents. A structural equation model was specified that included preparatory behaviors and self-efficacy as mediators at Time 2. Results. Preparatory behaviors were the most proximal predictors of condom use, and they were, themselves, predicted by self-efficacy and intention. The latter was partly determined by positive emotional outcome expectancies. Conclusion. To bridge the intention-behavior gap, preparatory behaviors play a mediating role, and they represent a side of planning that constitutes the most proximal predictor of condom use.