Depending on his age, it could take less than 2 minutes - and you will both know, because he's going to get this goofy look on his face about 4 seconds before he pops.
Don't worry, it'll get better. This is simply Nature's way of ensuring the perpetuation of our race; young men always come pretty quick, because they haven't figured out how to sustain a long-term relationship with a woman.
It takes years of failure and suffering before we realize that we will never understand you at all... as we get older, we just accept this, and learn to appreciate your beauty and mystique.
Wow, The first time I got laid, I didn't cum. I mean the girl was really cute but she just laid there in bed (it was pretty lousy, since I was like so this is sex), so I just started hammering away dog and mish trying not to be a 2 min brotha and after f'in her for like 20 mins, she just complained that it was getting really sore for her, and she was getting sweaty and the sh*t just ended (at least she walk with somewhat of a limp the next day). A bit disappointed. Has this every happened to any other guy out there?
To answer your question, for the second time, with a girl who wasn't much of a looker but great in bed, around 5 minutes.