If there is time left for the session, even 5 minutes, the sweet Kiki will ask if I want more massage -she never does short time on me. But I normally decline as I think the girl deserve a break before heading to the next session. In addition the girls need time to clean up the room such as replacing bed sheet and replenish the towel.
I am not mindful about 10 minutes or 5 minutes. I go to a spa for relaxation and enjoyment. I won't spoil my mood for a bit of time difference.