Kiss, lick, and touch your way down from her lips. Leave a trail of kisses down her tummy and when you reach her pubic mound make a little detour around the vagina and start kissing and licking her thighs. Work toward her vadge again. This time pause above it and breathe heavily against it... but move on again. Heheh. Drive her nuts. Keep it up until she grabs you by the hair and forces you in there.