I have sex dreams with the same gender. Does this mean that I am bisexual?
Honestly, it depends. I say this due to recent revelations about myself. I'm married to a woman whom I dearly love. I never, ever thought I had a gay bone in my body or even bicurious.
When I got to around 25, the idea of gay people didn't seem to repel me as it once did, I in fact realized that I'm OK with gay people and always had been. I also noticed that if I watched pornography or something similar, I was sometimes also aroused by the men. I even began to get off over them at times. Now, at nearly 32 I know in my bones I've always secretly been bisexual. I just denied it to myself and am now in a situation where I can't experience sex with someone my gender.
I don't regret this as my wife is my soul mate and the sex more than does it for me. That being said certain opportunities I had I wish I'd taken, like the bicurious male friend I had before who asked if I'd ever be interested in experimenting, or the other friend who actually tried to kiss me whilst we were drunk once. The point I'm trying to make is don't make my mistake. If you think you may be and you feel like you'd be happy, try it if you get the chance. At the very least you will have found out and have done something still kind of sexy in your life. Just remember there is nothing wrong with being straight, gay or bisexual, or even bicurious.
I still think about men on occasion to this day and have sex fantasies I badly want to try. If I ever fell out with my wife, I'd try pursuing a same-sex relationship next if the possibility was there. If it's a case of you knowing you are straight and have the occasional gay-oriented dream or self-love session, it's OK too. They are called dreams and fantasies for a reason; it doesn't make you do anything because your mind cooked up a brief desire.
Whatever happens, good luck and it's always best to be true to yourself.
