Should a Good BCD Session last for Minutes or Hours?

Recently while surfing the web I ran across this article. I wonder what the consensus might be on this subject in our community.

http://www.sciencecodex.com/good_sex...therapists_say

I have mixed feelings on this because sometimes for an older guy like me it takes awhile to get started and then if I'm really inspired it may take awhile to stop.

Satisfactory sexual intercourse for couples lasts from 3 to 13 minutes, contrary to popular fantasy about the need for hours of sexual activity, according to a survey of U.S. and Canadian sex therapists

Schitt, going by their figures, I've had some unbelievably amazing sex then because I usually stop the timers in half that time.

"Satisfactory"....Pffffft! Get that weak stuff outta' here.

Definitely hours! Lately I've been losing lots of sleep with a certain young UTR who likes to make it last.... in between shots of tequila. Talk about not being a clockwatcher!!!