On another thread there was a episode of a pornstar who was about to cum for real so she literally escaped from under her partner, chill out and then continued her "portrayal", it was agreed with her husband that she could never have an orgasm at work.

If I remember correctly the woman may be Roxanne Hall but not sure, it was a British woman for sure, can't recall the name of the clip though possibly a Bobby Manila feature : )
Maybe someone remember the scene, pretty please :*