If this guy is a sex mechine, odds are he is trying to get this girl to sleep with him, and she might not be ready yet, so if they do, it would probably do nothing but hurt her, besides the fact of the age diffrance. It is up to you what you do, either way it could be considered and "evil" go with which ever you think is the lesser evil.

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Man who go through turnstile sidesways is going to Bangkok.