Klaus can't help but to grin at Obi-Wan's utter sincerity, which he maintains even when faced with the two of them, who lack sincerity most of the time. He's just so helplessly fond of him.

"Or a very horny ability, when paired with Obi-Wan," Klaus says in an exaggerated whisper against the side of Harley's head. She wriggles against him and Klaus laughs as he tickles at her side while holding his drink up out of the way. "You tickle Obi. I can't reach."