I don't think the age thing here is such a big deal, just the timing of it... If you looked at it like this... A 19 year old going out with a 16 year old, not so wrong. But hey, that's just my opinion.
But if you really like her man go for it, just treat her right. Get to know her perants and all that. That's when the test will come, they'll either like you, not like you, think you're too old, or a combination of the last two.
Edit: And wsigo - if you really like someone (as it seems to be the case with CompMan and this chick) you do not treat them as you just described. Like DJ-Chris said, grow up.
But if you really like her man go for it, just treat her right. Get to know her perants and all that. That's when the test will come, they'll either like you, not like you, think you're too old, or a combination of the last two.
Edit: And wsigo - if you really like someone (as it seems to be the case with CompMan and this chick) you do not treat them as you just described. Like DJ-Chris said, grow up.