Place it as the solo reaction after the setup shot in a short edit, then follow with the oh my god wow sound button for a second shocked voice, or swap in a faaaa meme sound button when you want a bigger group style payoff instead.
Über diesen Sound
A short 1.8 second vocal clip where a voice says pooby and then stretches into a long oooooooooooooh. The drawn out delivery feels silly and exaggerated, turning a simple reaction into a playful groan of surprise that listeners instantly read as joking disbelief rather than anything serious or annoyed.