I am older and with older men so to keep going after he has got off does not really mean to another round, but I do keep going. By going though, I mean clean-up. Its a sense of pride for me, but my take is to make sure he can get redressed without needing a hand towel or wash cloth to clean himself off with. It is a bit naughty looking as I do it, but shows the detail I will go to, shows devotion, and also shows I am in no hurry to stop just because the grand finale is over.I cannot remember the last time I sucked a cock that didn't finish in my mouth, though sometimes things occurred between the initial sucking and the finishing in my mouth. One thing I do with people I've not been with that some may find a bit odd is I simply ask, how do you like your cock sucked? I don't have any "secret" techniques but one thing I enjoy doing is keeping it in my mouth after he explodes...that is amazing in it's own right and often is the preamble to Round 2.