To dream that you are a lesbian, even though you are straight in your waking life, represents embracing every aspect of yourself. It is symbolic of self-love, self-worth, and passion. You are at ease with your sexuality and femininity. If you despise lesbianism in your dream, this means you are afraid to explore your sexuality.
If you are a lesbian in your waking life, then the dream is simply mimicry of who you really are.
To dream that you bisexual, when you are not in your waking life, is a suggestion that you are holding back your needs and desires related to sex. Perhaps you are unable to communicate these needs properly. You may be perplexed or bewildered by your masculinity or femininity.
To dream of being homosexual when you are straight in your waking life means that you're in harmony with yourself. It's a sign of self-acceptance.
To dream of being homosexual indicates feelings of uneasiness. It connotes doubt and worries towards your relationships with the opposite sex.
If you're actually homosexual then your true nature is expressing itself through the dream.