Butch lesbians, can I ask this?

You have two lesbians, so obviously they both like other women and not men, but why do some lesbians on top of that want to dress like men? If you want to like women as men like women but don’t care to be a man, or believe that they are men trapped in women’s bodies; why want to dress like men? Why not be two women who dress like women but want to sex up each other? No, I am not laughing and this is no joke, I really would like to know this.