All the months I've been with my current girlfriend (she's 30 y.o.) I would've sworn she has an orgasm everytime I perform cunnilingus cause she always ends up grabbing my head and forcing me to let go when she can't take it anymore. At that point her body shakes and she wants me to insert my hard dick right away in her pussy.
Last Friday however, I was fucking her as usual, we were doing it in missionary position and I suddenly decided to pull out for a second. Right at that moment, to my surprize, she started screaming with pleasure and then said to me, "this is the first time ever I've had an orgasm with you".
What did I do right?
My penis is barely 6 inches long and I know the first guy ever who fucked her had a 10 inch penis and she's even told me once she wished my dick was bigger.
So again the question: what did I do right when I suddenly pulled out?
Thanks in advance to anyone answering the question.