Serious question - please help?

guys please help me out. my bf and i are 19 and i' a virgin but want to please him without goin all the way. i have d him and he makes the pleasurable noises but he doesnt - am i not doin a good job? also i have licked and suced him a little but still, no ejaculation. what can i do to really please him without goin all the way? serious answers only please