While Nanami appreciates the privacy, he thinks everyone ought to know it goes both ways. It isn't only that Haibara is smitten with Nanami and thinks he's attractive. Nanami's just as smitten with him, considers him just as attractive, and couldn't be happier with him here. Some people might have a clue, Gojo and Geto, but most... don't.

"Lord, you probably make me blush more than I did at sixteen," Nanami moans. He kisses Haibara though, content to do everything now they're together in private.