As has been said, age, fitness, previous experience as well as just how good the girl is for you, all effect this.
20-30 years ago would definitely have been a pre punt, maybe even 10 years with some girls. Would still be a two shot easily, even if the pre was in the shower at the SP's!
These days don't have the pre punt as only ever had it was to last longer. Not for being premature ( been lucky in that department), just to last longer, especially if the girl really does it for you.