Don't take your dreams so literally. Think about it more, analyze it, connect it with events in your past or current life. Perhaps these sexual fantasies mean more than their surface appearances. You know yourself better than anyone so just be honest with yourself. Don't be afraid to share whatever it is you are holding back, this is an online forum, no one here will judge you, and if they do it won't mean a thing because they are a complete stranger who's opinion doesn't matter.