Well, @FrankR, you may want to take a look at the type of guy you are hanging out with. Younger guys are quick to come and rarely have "stamina" as you put it. They may be pretty to look at, but they don't know any better. Look for an older guy - with some of my regulars it takes about an hour before we even get to the main course. You should not expect that from a quick hookup on Grindr, for example. That guy just wants to get off. Invest time and effort to cultivate regulars. Peace. Out.