After BvS and Justice League, Bruce and Clark actually form a friendship that slowly forms into deep love. Bruce is surprisingly enough, perfectly content with everything being vanilla, Clark on the other hand has all of these wild fantasies about Bruce that involved using his Kryptonian powers. One day either Bruce notices Clark acting strange or Clark finally gathers his courage and tells Bruce about some of the things he wants to do to Bruce, like maybe screwing his brains out mid flight or using his heat vision to mark Bruce as his.

Instead of freaking out, Bruce is intrigued and very, very turned on by this kinky side to his Kryptonian.