Yo OP! Read 'She Comes First' about going down on women and the joys of female orgasm! I know it sounds nerdy, but no one will know you read it and you will automatically know 97665 times more than guys who just try to feel it out. I can tell you that I was pretty nervous about being able to pleasure someone and it really helped a lot. I know that after people opened up to me about how a lot of the stuff other guys did didn't feel good at all, or was too rough, or too fast, or too soon. Patience is a big one. I think good communication is important, a lot of people are too nervous to let someone know what they like or when they aren't enjoying something.
As well, it should be noted that most women can't come though regular penis in vagina sex and that oral or other surface stimulation is the only way they can come, or it is a lot easier way. Going down on someone first makes things more fair because as a male... ya you're going to come.
