I really enjoy giving my wife oral while she is still wearing underwear, preferably netted or silky. I love how it teases her and also me while forcing myself not to go in, maybe every minute or so i lick the clit just to tease.
You have to try. Such an incredible feeling when u finally cave in and go marching in with the tongue.
My OH loves the teasing and the final outcome. If u have material underwear, a light colour is best as your partner can just how well hes doing