If you want two pops, but have a slow recharge time, this would be the way to go. Done it few times over the years, where I'd see one lady, have a nice time, and then a few hours later, call up another. Even though the first one was good, sometimes you just want a second helping, or a different flavor.
First you wanted apple pie. But later on, peach pie....
Other times it's come because the first visit being SO DAMN AWFUL. Oh, that's the worst. You didn't cum. Girl acting dumb, or bait and switch, her ways or demeanor was just.....damn. Lack of hygiene. Whatever the reason, you just can't go unsatisfied, so you just call up a another chick, and...yeah.
And many times, those second visits.....oh, yeah!!!!
In this scenario, if you're that second visit, and you're awesome, you become a GODDESS!!!