It can mean both shortly before or shortly after starting sex. When the term is used it normally just means “quicker than desired”.
I’m not sure how or why you are so definitive on there being no benefit. Most creatures do not engage in sex for a long time to get to the finish. In many instances it’s only a few seconds.
Tell that to your primate ancestor who snuck one in when the troop leader wasn’t looking. Female orgasm having a roll to play in conception has been debunked repeatedly. Not that it’s no important; it’s just not important for conception.
MasterAnything2055 t1_iy98pl6 wrote
Been said a million times on here. And still as wrong as ever. If anything wasting your load before you even get in is a disadvantage.