Why won’t he eat me out

Leah

So my boyfriend and I have been together for almost 4 month and have been very sexually active. I consider myself a queen of giving and will blow him till the cows come home but aside from two mediocre and lackluster attempts he hasn’t gone down on me. He said that before me he’s never eaten anyone out. It’s made me self conscious off my appearance and smell (or lack there off?) does he not want to do it because of inexperience or because of me? And how do I ask him to do it without being pushy ?