watching your bride being forced by several is indeed an unforgetable experience. You guilt at not being able to stop them, your excitement and shame at getting excited...
there have been a few, but i guess arranging for my sis to get shagged and then sitting there while he did her, him not knowing i was the bro. She didnt want to be left alone with the stranger. It happened on a beach
always got a buzz seeing other men flirt with my partners and touch them when they thought i wasnt looking. And i arranged for a mate to fuck my gf when we were quite yg. Hooked ever since!