Communication with family members about sex can protect teens from risky sexual behavior, but most research focuses on teens’ communication with parents. Extended family members may also be a source of sexual socialization to support teens’ health, but teens’ perspectives on communication with extended family about sex have been little explored. The current study aims were to examine similarities and differences in the frequency and content of teens’ communication with extended family and parents about sex and to assess whether the content of this communication differs based on teens’ gender. This cross-sectional study used structural equation models (SEM) to analyze survey data from 952 11th and 12th graders (55% Female, 52% Latinx) in the US. The study assessed three types of family talk about sex: communication about Risks of Sex addresses negative consequences of sex, communication about Protection involves ways teens can guard against pregnancy and sexually transmitted infections and Relational Sex communication addresses sex within the context of a close relationship. We found that teens were as likely to report talk with extended family members as parents about sex. Teens’ conversations with parents were more focused on sexual risk and protection while conversations with extended family focused on relational sex topics. Girls were more likely to engage in protection and relational sex communication with extended family, while boys talked more often with parents about these topics. These findings highlight the potential of extended family to support teens’ healthy development.

与家庭成员就性进行交流可以保护青少年免受危险的性行为，但大多数研究都集中在青少年与父母的交流上。大家庭成员也可能是支持青少年健康的性社会化的来源，但青少年与大家庭就性进行交流的观点很少被探讨。目前的研究旨在检查青少年与大家庭和父母就性问题进行交流的频率和内容的异同，并评估这种交流的内容是否因青少年的性别而异。这项横断面研究使用结构方程模型 (SEM) 分析来自美国 952 名 11 年级和 12 年级学生（55% 女性，52% 拉丁裔）的调查数据。该研究评估了三种类型的家庭谈论性：关于性风险的交流涉及性的负面后果，关于保护的交流涉及青少年预防怀孕和性传播感染的方式，而关系性性交流涉及亲密关系背景下的性。我们发现，青少年报告与大家庭成员谈论性的可能性与父母一样多。青少年与父母的对话更侧重于性风险和保护，而与大家庭的对话则侧重于关系性话题。女孩更有可能与大家庭进行保护和关系性性交流，而男孩则更频繁地与父母谈论这些话题。这些发现突出了大家庭支持青少年健康发展的潜力。关于保护的交流涉及青少年预防怀孕和性传播感染的方式，而关系性交流涉及亲密关系中的性行为。我们发现，青少年报告与大家庭成员谈论性的可能性与父母一样多。青少年与父母的对话更侧重于性风险和保护，而与大家庭的对话则侧重于关系性话题。女孩更有可能与大家庭进行保护和关系性性交流，而男孩则更频繁地与父母谈论这些话题。这些发现突出了大家庭支持青少年健康发展的潜力。关于保护的交流涉及青少年预防怀孕和性传播感染的方式，而关系性交流涉及亲密关系中的性行为。我们发现，青少年报告与大家庭成员谈论性的可能性与父母一样多。青少年与父母的对话更侧重于性风险和保护，而与大家庭的对话则侧重于关系性话题。女孩更有可能与大家庭进行保护和关系性性交流，而男孩则更频繁地与父母谈论这些话题。这些发现突出了大家庭支持青少年健康发展的潜力。