I agree with that njqt. To answer the question, though, I can go into a "reserve" mode where I go through all the actions not thinking about cumming - if I get close, I change positions. Can easily go well over an hour that way. Usually, my lady cums first. When she's done, I lose my reserve and usually cum within 5 minutes, often less. No need to delay any more after she's done. Occasionally I do cum first, then she quickly goes there, too.