He's not being specific about anything other than "a thing relating to kissing". Meaning, he could be talking about their previous accidental kiss, or more likely, the 'threat' of 'punishment by kissing', while Murakumo is nearly certain to leap to the wrong conclusion and think it's the head-smack "kiss" for which Admiral was unconscious.
Calm down, me....
In any event, since this guy can't remember...Don't tell me, you...... are getting all shy about that kissing thing?EH?!
