Magnetic

Depends on a lot of factors, including your level of experience, time since the last ejaculation, your level of excitement, how she feels inside, if you are using a condom, if you are under the influence, etc.

The "average" for all men might be 4 to 10 minutes. But, even experienced men might last less than a minute if they are not trying to hold back, or can go all night if they are.