Feminism is a woman being able to wear slutty clothes in public, and not be considered sexually available to any man that wants her, as the "patriarchy" would conceivably demand.
Feminism is NOT criticizing a woman for choosing to wear slutty clothes in public, because she's exhibiting her sex appeal to someone other than the man that "owns" her.
Feminism is a woman being able to express her sexual agency - by degrees if desired - on her OWN terms; it does NOT consist of stripping her of the freedom of self-expression and the right to free association (or non-association, if she doesn't want to fuck or flirt with you).
A woman's rights do NOT depend on her choice whether or not to keep her legs crossed, and her dignity is NOT defined by the modesty (or immodesty) she displays in her choice of dress.
Sexism is problematic, but the solution is NOT sexless "feminism". Feminism - in its truest and most honorable sense - is not at odds with the natural process of sexual courtship between men and women.