well...
only once really. Met this chick at a club, got her number (after like 15min). Called her a few days later, we went out for dinner, clubbing again, and bam, landed in the sack that night. So other than a 15min intro, the entire event took 1 evening (7pm-4am). Took her home, never saw her again.
DrG
PS: It wasn't what I would today consider a satisfying experience.