Is the wish to be biologically related to your children legitimate? Here, I respond to an argument in support of a negative answer to this question according to which a preference towards having children one is biologically related to is analogous to a preference towards associating with members of one's own race. I reject this analogy, mainly on the grounds that only the latter constitutes discrimination; still, I conclude that indeed a preference towards children one is biologically related to is morally illegitimate because, in the context of parental love, biological considerations are normatively irrelevant.