ways to enhance your oral expertise

1- Start slow
Kiss your way down her body and tease her thighs and buttocks for a while before you make contact with any part of her genitalia. This will turn her on before you start the real action. Get close so that she thinks you're going to zero in on her at any second, but don't give in immediately.
2- Warm her up
Before you remove her underwear, breathe hot air through it against her genital area. Breathe softly but warmly for short bursts at a time. You can alternate between doing this and kissing her thighs and stomach.
3- Don't dive in
When you begin to kiss and lick her vulva, work your way in slowly from the outside. Start by licking the outer edges of the outer lips (labia), then very slowly spread them, and lick and kiss the inner lips, and around the vagina. Do this gently, as though you were still teasing her. You'll work your way up to more intense action eventually.