Female ?

Okay, so my girlfriend now is the only girl who I have ever stimulated through physical contact. The first time that I used my dexterity to please her, she barely reacted, the second time I was pleasing her for a longer period of time, the third time she moaned more and she said, "congratulations, im going to make you a certificate". Because I gave her an , but I didnt even notice an it was weird, she just huffed and puffed and said that it happened, and now finally the fourth time that I stimulated her, which was today, she was huffing and puffing and she gasped the word, "faster" in my ear. Then she started to shake, in an uncontrolled fashion, and she had the biggest smile on her face. So did I achieve it. And how hard is it to give a woman an ? She said I did it by the third time, but I think I did it on the fourth. Do women have silent s? and then stronger s?