An increasing number of children in the United States are growing up in multispecies families, where humans and companion animals form close bonds and share daily life. A burgeoning body of work highlights the significant role of animals in shaping developmental outcomes across a wide range of domains. Few studies examine how children in multispecies families perceive and construct their relationships in the context of growing cultural sentimentalization of pets. Using narrative and visual methods, we explored children’s perspectives on their relationships with their companion animals. We recruited 24 parent-child dyads in the United States (children aged 3-7 years). We interviewed parents, asked children to draw and describe their favorite memories with their pets, and interviewed children about their relationships with companion animals. Using narrative and mapping procedures, our analyses revealed three themes: children constructed companion animals as family members, integrated them into daily activities, and attributed subjectivity to them. Our findings highlight how children navigate complex relationships with animals, providing implications for child development, empathy, and the human-animal bond within multispecies families.