It is likely that you've had oral sex and it's been great. This is one sex act that is unlikely to go too awry. But even in the relatively foolproof world of oral, there is always room for improvement. "I think it's like anything else, you don't want to be predictable and boring. And I think everybody can always learn to be a better lover," says sexologist Ava Cadell, founder of Sexpert.com. She isn't just saying this either. Cadell is author of The Sexy Little Book of Oral Pleasure and has a whole DVD series on the topic. Even with all that available, she has offered us some expert tips to share with both men and women (so, go ahead and share this story) about giving and receiving oral sex.