For context, I'm a cis woman, And I often hear women with this type of experience too. I masturbate to fanfiction and stuff, but I'm never imagining the desired guy I want fucking me with his dick. In fact if I imagine it, it's not that appealing. I am more over jerking off to the attention and worship the guy in the imaginary scenario gives me. But more often when I masturbate and it has to do with physical attraction, I do it to images of women and women's bodies. I find them very appealing and beautiful. Sometimes I masturbate to the pics of the women imagining I am the attractive woman.I just never masturbate to pics of men or porn where the guy is fucking the girl.