He would have flown out to get the lube, either from a location in the mansion or if need be, what would have been the most confused drug store clerk in the universe if he'd had to. Pain could be good, especially for Bruce, but while Clark was beyond feeling guilt about it, pain to that level was not compatible with what he needed. Because part of what he needed was about Bruce.

Clark made a noise that was as much groan as growl, and while he was certainly doing the job of prepping Bruce with his usual thoroughness, his prep turned into something closer to fucking Bruce with his fingers.

And of all the things Clark had forgotten in that wasteland, the location of Bruce's prostate was not one of them.