In two studies, we introduce the concept of spontaneous side-taking (SST) to describe how people initially align themselves in a conflict. The effects of side-taking in established conflicts are well studied, such as empathetic engagement and polarization. However, there is less known about how people spontaneously choose sides in situations without prior allegiances. To study these neglected effects of SST, we use two-character narratives to present participants with new conflicts in which they have no initial vested interest. These short narratives describe acts of aggression and detail the victimization of one character by another. Through two studies, we find: (1) victim characters receive greater attention and are remembered better; (2) victim characters receive more empathy; (3) victim characters are more likely to be viewed as the authors of conflict narratives; (4) and that side-taking flexibility diminishes after the first side-taking choice. This last finding means that there is a tendency for SST to stick over time. Overall, these findings demonstrate how victimization triggers and sustains side-taking in narratives by enhancing memory of and empathy for the victim.