Yes, someone with genophobia can have 7 sisters. Genophobia is the fear or aversion to sexual intercourse or any sexual activity, and it does not have any direct correlation with the number of siblings a person may have. The fear of sexual activity does not affect the gender or number of siblings a person may have in their family.
Genophobia is a specific phobia that can arise due to various factors, such as past traumatic experiences, cultural or religious upbringing, or psychological issues. It is essential to understand that phobias are individual experiences and can manifest independently of a person's family structure or dynamics.
Regardless of their phobia, someone with 7 sisters would still have those family relationships, and the presence of siblings does not directly influence the development or existence of genophobia in an individual.