How is it possible to not use teeth when giving a blowjob?

Rebecca • 19, college student
I've never given a bj, but I don't understand physically how to prevent my teeth from touching my man's dick. I'm sucking a lollipop right now, and even with this small thing, my teeth keep clicking against it. With something thicker like a dick, I donmt get how my teeth won't touch and hurt my man.