Hans you must know that it is VERY unlikely that any fellow here is going to admit to having any seksuaal thoughts about men ever. It is just not masculine!
I sort of know what you are talking about. There have been many woman i have kissed passionately (and they kissed back!) and even made out with rather heavily that say after it all say, "umm...im not actually bi. I am just experiementing" Hmmm.....honey your hand down in my knickers certainly FELT like you were bi.
Girls can have problems talking about being bi and guys are generally much worse.