Based on empirical research we will explain how daily processes of boundary making by Catholics in Belgium look like. If persons who call themselves catholic in Belgium reflect on their own identity, they do this in reference to others. In this paper I will focus on issues of 'lived Catholicism' in Belgium related to daily life, such as romantic and sexual partner relations and parenting practices. Belgian Catholics often do not take Catholic teachings on these issues for granted. Their Catholic identity is the result of a form of negotiation between their own views, influenced by many socio-cultural factors, and church teachings on the family. This paper will delve into the question how this negotiation processes of Belgian Catholics are related to what is called 'othering', as a term which refers to the process of creating a clear boundary between 'we' and 'they'. The 'they' are not seldomly essentialized or presented in a stereotypical way. Is the creation of an own identity linked with forms of 'othering'? Is a form of 'white normativity' at stake in these processes? Is space, time and openness available for questioning the own identity if this identity is already the result of clear negotiation processes in relation to issues on partnership and parenthood? Are forms of 'intercultural learning from each other' possible when Belgian Catholics reflect on partnership and parenthood? Initial answers to these questions will be explored, in combination with another question that is raised when the discourses on 'white normativity' and 'negotiations of Catholic identity' are discussed in dialogue with each other. One should also ask how the relationship between individual identities (of persons who call themselves Catholic and speak in this context about their views on partnership and parenthood) on the one hand, and more common identities of groups of Catholics (e.g. in parishes) on the other hand?