My wife is 62, and still enjoys draining her 21-year-old studs from University of Michigan dry. At current time she has three regulars, and I have seen her take on all three at once.
Remember the first time an older girl went straight down on me after cumming, I stayed and she got a few climaxes as well. About 19 then, I told a girl i was fooling around with and she said it was the best thing ever after convincing her to suck me right after. Worked like a charm.