Cory,
If I were you just to be safe, I would be myself staying out of all libraries for the immediate future.
But seriously now, I do not think that this dream is anything more than an expression of the fact that you feel horny for him, when compared to any of the other men you have met in past.
In other words I feel that this is a harmless sexual fantasy about a person whom you physically long for, and nothing any deeper than that.
It must be flattering for you to have so many naked men competing for your sexual favours, and it must surely be a private compliment (unless you choose to share the contents of this dream with him as an aphrodisiac) to this man, that out of all these prospective partners you would prefer him above all the others on offer to you in what might first appear to be a highly inappropriate setting (a library)
Libraries are after all places for gaining knowledge, so perhaps this dream is attempting to give you greater understanding or knowledge about yourself as a sexual being.
EoT

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