yeah lol... just got to know a 9/10 brazilian girl and like the second sentence was "I have to leave tomorrow, wanna have some fun?"
also for all the guys traveling here - definitely try to learn at least basic spanish when going here. Most people don't speak any english at all.
I just hooked up with this local girl on badoo.com and I was talking to her in spanish via translate.google.com and tomorrow she's coming over to my apartment thinking I can speak basic spanish - and I don't know a single fucking word of spanish. let's see how this pans out. Just wrote down some 3 basic phrases on paper:
1.) let's go have a shower
2.) do you want a beer?
3.) let's hang out in the whirlpool
I hope that's gonna be enough to get everything started.
But in general I would say rather go to brazil if you're up for easy girls and good times... Buenos Aires is awesome, but all the girls want to go on a second date before letting you into their panties and also there's no beaches around here.