Going down on your woman can be an extremely pleasurable experience for her.
Most
women are more likely to achieve orgasm via oral sex than penetrative
sex so the importance of giving her head the right way can not be over
emphasized.

During a recent episode of Ask A Porn Star on Youtube, adult film stars were asked to give their best tips for oral sex.
Here are a few of the best ones:
1. You have to want it.
If
you are not enthusiastic about the act or you really do not want to do
it, she will catch on to this vibe and she is unlikely to enjoy it too.
2. Every girl is different
What works for one might not work for another. You might want to ask her what she likes before getting down there.
3. It can be sloppy
Just
as men like things wet when receiving a blow job, women also need it
sloppy and wet to be pleasurable. The idea of poking the tongue in and
out of her is a terrible one and is very likely to be unpleasant for
her.
4. Gradual speed
Start slow at first then gain momentum as things go.
5. Foreplay
Foreplay
is not just a prelude to penetrative sex. Taking your time is great for
oral too. You can start by kissing her inner thighs, give her vagina
little kisses and gently work your way in there.
6. Include the hand
Use your tongue and fingers during oral sex. When fingering, make sure you focus upwards where the G-spot is.