I've been with (I am not going to put any measurement here) women... some women can easily orgasm when it comes to new exciting sexual encounter, but some takes longer than the others (a few reall LONG) because of many reasons who knows what they are. But I am sure, not every single man you have been with can make you cum. Consider yourself lucky if you can orgasm more than 5-10 times in one sessions, some can't even reach 2 or 3.