Want to have great sex? For renowned human sexuality research professor Dr. William Yarber, there's no big secret. An honest conversation with your partner is all it takes.

"Find and share with your romantic partner a mix of these magic words: 'How do you like to be touched?' and 'This is how I like to be touched,' that's the key to enjoying sex," he told CNN.

"The essence of sexuality is about giving and receiving pleasurable touch," Yarber said. He argues that those who want to sexually satisfy both themselves and their partner—who doesn't?—should ask this question, without hesitation.

What makes good sex, according to research