Are there gay couples where both R ';lipstick lesbians'; or ';masculine'; men, or is 1 always like the other sex?

Being serious and honest in this question due to my lack of knowledge on the subject, is one member of a gay or lesbian couple more likely to play the role of the opposing gender, or does this only take place with a portion of gay and lesbian couples? And what if both partners are bi-sexual?Are there gay couples where both R ';lipstick lesbians'; or ';masculine'; men, or is 1 always like the other sex?
No they don't always have a certain gender ';role';. Every couple is different.