GETTING HEAD FOR THE 1ST TIME

Soooo me and my boo are about to make our way to 3rd base ish. All we've done at this point is make out and a hand job. We're both ready but I'm lowkey afraid of like what if I stink? What is it supposed to smell like? How do I shave without getting bumps?
Can anyone give me the 101 of getting your pussy eaten?? I'm so excited because I've heard so much about how good it feels I just wanna know how to prepare! 
Thanks 💞