This girl goes up to random – better looking – women in the street and tells them she slept with their boyfriend.
Yep, that’s it. That’s the prank. This is just another example of a terribly planned, awful, lazy prank and that in itself is becoming a common trend on Youtube these days.
If you’re going to do a mean prank like this, then at least be creative about it, otherwise you’re going to come off twice as bad.