When you're doing a girl from behind, and switch with your friend halfway through without her noticing. (aka The Magic Trick, but your friend is acting as your sidekick)
You go stand near the open window in front of them, spank it until you cum, then “Spiderman” her in the eye, as your friend kicks her in the shin. Turning her into the angry hulk/pirate.
Your friend then proceeds to perform an Angry Dragon on her, while declaring “Justice Has Been Served!”
The Justice League is often performed on a cheating girlfriend, spouse, or significant other and photos of these events documented for future girlfriends to see..
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