Bruce hadn't mentioned lube. He hadn't kept his mouth shut because he didn't want it, but because he didn't want to put more hurdles between Clark and what he needed than were already there, just in having to get the shower on and Bruce's pants off. It wouldn't have been the first time.

He was still relieved as hell to feel Clark reaching, and hear the clink of the lid hitting the shower floor.

He braced his hands on Clark's shoulders and used that to get himself up a bit. They were similar in height, but there was still some.. lining up to be done and to give Clark the access he needed. HEsitation or reserve now? No.

In fact he actively egged Clark on as best he could, by reaching down when Clark did, opposite side, and wrapping his hand around Clark's cock.