phyuggene two types of creampie shots: the ones that the pornstars, fuck (no cut scenes more than 20 seconds before), to creampie. The other is a cut or looks like a scene joint, from fucking to just about to creampie. Some creampies use fake cum, but it depends on the male pornstars (also if screen cut or not).
For the non cut scenes or scenes 20 seconds or more, before creampie the male performer is exhausted (so many, so needs a second take out his dick).
Usually the screen cut scenes before the creampie, that pull out instantly. If a director or studio does, a natural creampie scene the guy (depending on performer) can pull out straight away.
This is a matter of having a favorite porn studio or male performer, than a general 'all solution' for 'all people's.
For me I like everything so not fused, by the directions of any studio or director.