Place it at the end of a short confrontation scene, after the teasing line, then follow it with a shocked reaction such as Oh My God Wow to sell the joke, or open with No No Wait Wait if you want the other person to beg first.
About this sound
This is a very short Portuguese voice clip, lasting about a second and a half, in which a voice delivers the line 'Espera aí que já te fodo' in a sharp, confrontational tone. It feels bold, aggressive and deliberately over the top, like a playful threat meant to make friends laugh rather than frighten them. The clip comes from a video by Kesyn & Skelter.