The five minutes the men were allotted...
Included undressing (shoes and socks, pants, shirt, underwear if any) when they were brought into her presence, which cut into their "screw time." I can picture it, the men fumbling and maybe tripping over their shoelaces, clawing at their clothes, catching their pants over their hard-ons, if they had them. If they didn't, they had to work themselves up before penetration.
Poor souls.