My wife: "I'm leaving for the train in a half hour, and I want you to spend that time pleasuring me." We both love pussy worship so I was only too happy to oblige. She lays back with hands behind her head and after several orgasms she says to me "How long has that been?" I look at the clock and say 25 minutes. "Good job, ahead of schedule!" And with that she's up and away. Other examples please....