Yes, I'm female.
Having developed pc muscles is important for females (childbirth, bladder control, increased pleasure in sex, etc.). Thanks for explaining what it does for males to have developed those muscles.
Also, as a person capable of having multiple orgasms, I have never had the feelings you expressed following said orgasms.
Have you ever had this experience following partner sex? Personal development can be an aspect of two people having sex, so I would assume that masturbation would also be an aspect of pd.