Unless your bf is really insecure about himself, the best way to overcome the guilt would be to let him in on the fantasy... ask him to BE Michaels or whoever... you might be surprised at how he gets into the role... or ask him if he fantasizes while making love to you, & volunteer to play the role... again, you may be surprised... imagination is a wonderful thing...

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If the theory does not conform to the facts, then the facts must be discarded.

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Never argue with an idiot. He'll drag you down to his level, & beat you with experience.