This scenario depends on a lot of different factors: Where online did we meet? How did we meet? How has the conversation gone so far (i.e. how explicit or sexual has it gotten)? How far apart do we live? Have they given any indication that sex might be in the cards, or is it just a nervous first meeting to gauge compatibility?
The answer is something I would have to determine on a case-by-case basis, depending on the above factors and also, simply, on how things felt.
It’s tough to say what the other person’s expectations are unless they are direct and open about it. I have met a lot of potential dates/hook-ups/friends/etc. online and if there’s been serious flirting, I figure there’s at least a small chance I might get lucky and I prepare accordingly. I can’t tell you the number of times I so didn’t expect anything to happen.. at all.. and I ended up making out or in bed with them. :P
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Do you feel some pressure or obligation due to the travel time involved?
I think there’s always a bit of pressure if one person has to travel a distance in order for a meeting to happen, but this pressure is not always/usually sexual, in my experience.
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Has this prevented you from meeting up?
I can’t think of any examples, but yes. That distance thing can be daunting and difficult. I hate the thought of one of us driving a long ways and then finding out there’s no chemistry.