concept: Bruce and Clark keep getting caught getting all hot and heavy in semi-public places like JL meeting room, Daily Planet supply closets, Lex Luthor’s office that one time, the barn, etc.
And everyone just assumes Clark is the one who keeps starting things. Like of course Batman wouldn’t want to have sex in the JL cafeteria, the gym, the monitor room. So, logical conclusion is Superman goads him into it.
But they’re all wrong. It’s Bruce. It’s Bruce all the time and Clark is knows what people think and is way embarrassed about the assumption but no one believes him when he tells the truth.