Older sisters in Latino, immigrant-origin families in the United States bear significant caretaking responsibilities for their siblings, especially regarding their siblings' educations. Young women in Nashville, Tennessee, frame their same-generation caretaking commitments and educational expectations for their siblings in intergenerational terms-what I term the descendant bargain. This intergenerational framing reveals how elder sisters position their siblingship-and their educational carework-as vital to forging socioeconomic mobility and kinship obligations, labor often understood as the domain of parents. Youthful siblings' educational carework is a critical kinship practice that demonstrates the central role of youth in making kinship and remaking genealogical generation in immigrant families.