A bromance, but with two women. Sometimes, the women become so in love that they think they might be lesbians. Then they realize that they are just really good friends that like to play strip poker and share secrets and the same bed. Or maybe they are just lesbians.
"Have you seen Charlotte and Danielle? They spend every waking moment together. They hug all the time! I think I even almost saw them kiss! They are in such a womance."