Feel embarrassed that fiance asked his brother for advice about sex?

My fiance and I are visiting his family. We became sexually active early in our relationship however he doesn’t want his family to know.

He told me he is trying to give the impression that we didn’t have sex yet. He asked his brother what it’s like having sex.

Im pretty annoyed and embarrassed because I didn’t want him to discuss anything about our sex life with anyone else, and he lied. Am I overreacting?

Feel embarrassed that fiance asked his brother for advice about sex?
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