From my experience, when a woman is going to cum, she grabs and squeezes one tit or both tits. rubbing them or pulling on her nipples. If not, she's faking.
I have never given my wife a real orgasm, but she fakes it sometimes just to humiliate me. Once she faked an orgasm while looking at facebook on her phone as I fucked her.
bravo
im sure she cums with the others