Usually 30 mins for a first meet. Mostly 1 hour, especially with regular. Tried a 2 hour session once; as it was shagging all the way and two pops, which was tough for me, it was just too much. That said I have booked an evening, 4 hour session with my regular, during which we will have a couple of sessions in the bedroom, separated by a bite to eat, some drinks and a good kiss and cuddle while chatting. Whereas other posters have mentioned chat can be a time wasting tactic, if you find a girl you are comfortable with, I think some sincere chat can add to the experience.