How do I remove these awful thoughts?

I am an average Joe. Looking at me you wouldn't think I'm anything special. The problem for me is that I'm gay, I think. I want a wife and kids, but the moment I get aroused I think of men. I hate this and wish I could snap my fingers and be straight. I feel disgusted with myself once I've calmed back down. The thing though is that for me I can see myself with a wife and happy, but just worried this is going to mess things up, hurt people and generally ruin everything. I've been online trying to find a cure but it seems there is no such thing. I noticed that someone said to a person in a similar instancethat he was in denial, I don't feel that, I feel absolutely revolted by these thoughts and need them to be gone.