Desire?

Almost every post I see is about people getting unwanted and intrusive thoughts about their sexuality due to OCD. But can the opposite be true? Can I have a desire to be gay? I'm a straight guy but whenever I see a gay couple I sort of think I wish I were gay so I could experience this. Or sometimes I think I wish I grew up gay. Why is this happening to me? It's like a sudden urge to want to be gay and like men even though I truly can't. Is it OCD? Is it something else?