It’s called the Laid back approach; 

She lies back on pillows while he sits between her legs, facing her. The guy can touch and stroke her body all over during the oral action, so that the rest of her doesn’t feel neglected. A good water-based lubricant is a great idea because the wetter things are for her, the better – she definitely doesn’t want vadge burn!

The guys role: Using your lubed fingers, gently explore her inner and outer labia (lips), tugging at them gently or rubbing them tenderly between your fingers. Try varying the pressure you use, and ask her what feels good.

The rest is up to you. Remember to always ask permission first, the ladies seem to love this.