This is the way it should be done. Anonymous cock donor(s)...no lube (just enough from the bottoms spit so that it hurts a little). The top plants his thick cock deep on the first thrust, and the bottom winces as he accepts what's cumming. A thick load load from the first donor, and then the next guy in line passes the first guy to start the excitement all over again. Even better that he saw the guy that dumped that first load, and he got to taste THAT while it was still warm and able to be used as lube.