Wow... I have never, ever, ever orgasmed while having sex with a man I am only casually dating.
... and even with my current bf, while in the delicious chemical phase, and I was, like... in a constant state of arousal.. I still couldn't/wouldn't O with him. And it was very good sex.
I can only O if I am willing to be vulnerable... and that covers any kind of sex you can think of... with any animal present, mine or his.