Start at the base and work your way up. Don’t be afraid to lick her taint, even her ass. Trust me, it’s worth it. Work your way up slow, pay attention to the folds on both sides. Then, when you think you’ve played long enough and she starts to squirm a little, attack her clit. Use one hand to pull up a bit on its covering so you can get better access. Now, it’s just friction, friction, friction. Keep the tongue stiff and try a few things. Up and down, side to side, circles. Whatever you can pull off. And try to make longer strokes back down her cunt every now and then. But, when she grabs your head and bucks against your face, remember whatever it was you just did, and keep doing it. Feel her out. She will let you know. Oh, and don’t stop until she stops shaking and pulls you off of her. Enjoy.