Hi all, I need some help. I went down on a girl last night and it was great. I was there for about 5-10 minutes and she said she liked it but it didn't look like she was approaching orgasm so I stopped. She said that she's never cum from that, but also said that none of her previous partners ever liked giving oral. I really liked the way she smelled and tasted, and really want to make her cum that way, but I'm so inexperienced. It was dim (candle light) and I couldn't see too much, so I started licking whatever I could see, and then sucked on what I think was her clit. Then I put in 1 finger, then 2, and continued licking/sucking. So I guess my question is:

1. What am I doing wrong? Any improvement tips on how I can make her cum this way?
2. Are some girls just not able to cum this way? I thought this was the easiest way for a girl to cum in general, so I'm wondering if she hasn't cum this way because no one (including myself) has done it properly. Thanks!