Yes, a girl can kiss her male best friend.
The act of kissing between a girl and her male best friend is permissible and considered normal, according to the reference material, as long as both individuals are comfortable with it, or if their relationship has evolved beyond just friendship. The reference highlights the importance of openness and acceptance regarding such relationships, suggesting that societal judgments based on uncommon or radical relationship dynamics are unwarranted. The reference states: "As far as between best friends, if they are ok with it or are more than just best friends, it shouldn't come as a shock. Honestly, people should be more open as to what certain people do and not judge just cause its uncommon or unseen before, no matter how radical it sounds. Kissing is pretty normal and very ok."
