Your room, you say? If you're all staying in a hotel partying then you could sarge her as normal and isolate her, then say "Hey, I have more alcohol upstairs, let's go."
You know the feeling when you're very instate and you sarge very well because of that, just flowing along with natural attraction and chemistry? Get to that point first, that way when you're leading and being the man it's much easier for her to follow you. I had an effortless pull last week under the same circumstances, no resistance whatsoever.
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