Place it immediately after the reveal in your edit, following a short build-up with Sudden Suspense and then letting Oh My God Wow follow it for a bigger group reaction.
Über diesen Sound
This two-second voice clip captures Joseph Climber sounding genuinely taken aback, delivering a short Portuguese line about life being full of surprises in a warm, expressive tone. It feels startled and lighthearted at once, like a friendly reaction to an unexpected twist, and works as a quick human response rather than a loud gag.