The present study explored how emerging adults experience their social media engagement and how these experiences may be relevant to narrative identity development from the perspective of McLean et al.’s (2007) process model of narrative identity development. Individual semi-structured interviews with 27 emerging adults (19 females, 8 males) were analysed using reflexive thematic analysis. Three themes were developed. The theme Social media as a socially responsive context for self-expression captures perceptions of social media as a context for self-expression, exchange of perspectives, and meaningful interpersonal connections. The theme Selective online self-presentation captures perceptions of social media self-presentation as selective and providing a partial, potentially misleading, representation of a person. The theme Curating the social media profile through reflection on past and present selves describes tension between preserving personally significant memories on social media profiles and removing content that no longer represents how one currently sees oneself. Taken together, the themes suggest that social media represent a distinctive context for situated storytelling in which self-representations are socially negotiated, selectively constructed, and retrospectively curated. The affordances of this context may shape these storytelling processes and autobiographical reasoning, potentially contributing to a greater emphasis on thematic coherence than on temporal and causal coherence.