This video says about itself:
Frenzied Lance-tailed Manakin Displays and Successful Copulation, April 19, 2017
The alpha [manakin PGVm] displayed with his old beta (SAmY) but the female solicited copulation in the middle of the leapfrog and SAmY started to oblige. PGVm attacked him and drove him off and copulated with the female 2 minutes later. A third male came in to check it all out, and SAmY came over and chased HIM off (this happened off camera).
Watch live here.