Place this clip right after the reveal shot, not under dialogue, then follow it with Oh My God Wow for a second reaction layer. For a comedic fall instead, swap the follow-up for a cartoon slip and cut back to the main scene.
About this sound
The clip is a Portuguese voice reaction centred on the exclamation 'ai meu deus', meaning oh my God, stretched across about ten seconds. The delivery feels dramatic and overwhelmed, turning simple surprise into disbelief that keeps building. It lands as funny rather than genuinely shocked because the reaction is far bigger than the moment that caused it.