Place it as the instant reaction after the confession line in your edit, not as background under dialogue. Follow it with the Kiko Laugh to let the group reaction breathe, or precede it with Plankton Ooooh when you want a cartoon build-up before the callout lands cleanly.
このサウンドについて
A six-second earrape version of the Spanish phrase 'A Calamardo le gusta,' delivered as a loud, blown-out voice clip. It feels cheeky and teasing, like gleefully calling out a secret preference in front of everyone. Calamardo is the Spanish name for Squidward from SpongeBob SquarePants, which gives the line its cartoon, deadpan edge.