Why dosnt she like it ?

this isnt a big deal but id like to hear ppls opinion on the subjet. recently my GF and I have become relly close, we had sex for the first time last week ( in a romatic forin country no less). my query is this, were in our teens and weve done just about...

everything but any time i finger her or eat her out she tells me to stop after a few minutes. i feel greedy reciving stuff but not being allowed to do stuff to make her orgasim. maby im paranoid but i feel like a selfish boyfriend if she gives me head and she wont let me return the favor. if u know why she feels this way (girls can answer this) or how i can make her cum without her stoping me id like o know cuz i feel really selfih only reciving and not giving. thanx for answering if u do !

Yo she just don't want 2 cum fast. That is wha my girl tells me.

Cause us girls love to feel you finger down our pants