The kiss is distracting, but he's inwardly wondering what Emet-Selch is up to. He knows his friend better than that, after all. So although he returns the kiss, he does notice the chocolate being moved behind him instead.

Pretending to get further into the kiss, he cups Emet's cheek with one hand- before suddenly breaking away and turning to wipe his entire hand in the bowl, smearing it over the other's neck and chest with a chuckle.

"A terribly obvious ploy, I'm afraid." He casually sucks some chocolate from his finger, feeling decidedly sticky. But he's not done yet- he leans in to start licking the chocolate from Emet-Selch's neck. "Do you admit defeat?"